Oferty pracy Backend Developer — 299+ Ofert

<h2>Hi there! 👋🏻</h2><p>We’re <strong>Tooploox 💎</strong>, a <strong>Solvd Inc</strong>. company.</p><p>We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&amp;D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.</p><p>We are looking for a <strong>Senior Java Developer</strong> to join our team. The ideal candidate will have experience developing scalable Java applications.</p><p><strong>About the project: </strong>We are developing a data retrieval and operations platform for a next-generation customer support system for a global e-commerce leader. The platform will provide a federated GraphQL interface that unifies access to multiple backend services, enabling low-latency, real-time data retrieval and transactional operations to support AI-driven workflows.</p><p><strong>The role will focus on</strong> designing, building and optimizing the platform to ensure scalability, reliability and test automation. This is a multi-team, collaborative initiative that requires close coordination with other delivery teams, adherence to high engineering standards and a strong focus on integration and architectural alignment.</p><h3>What you will do:</h3><ul><li><p><span>Develop and maintain the server-side logic of our applications using Java</span></p></li><li><p><span>Implement efficient and performant backend code for high-volume production applications</span></p></li><li><p><span>Monitor application health, identify related risks, and ensure reliability in production environment</span></p></li><li><p><span>Contribute to all phases of the development lifecycle, from concept to deployment</span></p></li><li><p><span>Review and refactor code, establishing best practices for code hygiene and organization</span></p></li></ul><h3>Experience and skills you need to join us:</h3><ul><li><p><span><strong>5+ years </strong>of backend development experience in Java and Spring Framework</span></p></li><li><p><span>Proficient in <strong>RESTful API </strong>design, experience with <strong>GraphQL APIs</strong></span></p></li><li><p><span>Experience with message brokers (e.g., Kafka, RabbitMQ, ActiveMQ) and caching (e.g., Redis, Memcached)</span></p></li><li><p><span>Proficient with authentication and authorization mechanisms, especially OAuth 2.0</span></p></li><li><p><span>Experience with containerization and orchestration tools like Docker and Kubernetes</span></p></li><li><p><span>Knowledgeable in performance troubleshooting, profiling, and debugging tools</span></p></li><li><p><span>Capable of solving complex challenges related to latency, data consistency, and performance in distributed systems</span></p></li><li><p><span>Understanding patterns of distributed systems design; resilience patterns such as circuit breakers, retries, and timeout</span></p></li><li><p><span>Proficient with code versioning tools, such as Git</span></p></li><li><p><span>Skilled in CI/CD tools and practices</span></p></li><li><p><span>English: B2+ (Written and Oral)</span></p></li><li><p><span>Experience working in a lean agile process</span></p></li><li><p><span>Proactive approach in understand the customer’s business and refining business requirements into technical requirements</span></p></li></ul><h3>It would be great if you also have:</h3><ul><li><p><span>Experience with API contract testing</span></p></li><li><p><span>NoSQL (e.g., MongoDB, Cassandra)</span></p></li><li><p><span>Prompt engineering and experience with integration of GenAI LLMs into productions (ideally) or pet projects at least (OpenAI, Azure OpenAI, Bard, Llama)</span></p></li><li><p><span>Familiarity with federated Graph architectures</span></p></li><li><p><span>Experience mentoring less experienced colleagues is a strong advantage</span></p></li><li><p><span>Team leader experience is a strong advantage</span></p></li><li><p><span>Hands-on experience with Google Cloud Platform</span></p></li><li><p><span>ReactJS experience</span></p></li></ul><h3>The ideal candidate would have:</h3><ul><li><p><span>Strong communication skills with experience in direct customer interactions.</span></p></li><li><p><span>Ability to engage with clients on technical issues, gather requirements, manage expectations and provide updates on project status</span></p></li><li><p><span>Ability to learn quickly, adapt to new technologies, and perform tasks independently</span></p></li><li><p><span>Passion for writing clean, efficient, and maintainable code (and encouraging others to do so)</span></p></li></ul><h3><strong>How we work:</strong></h3><p>At <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">Tooploox</strong> 💎, you have the <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">flexibility to choose your working hours ⏰ and location </strong>📍. While we value <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">remote work</strong>, we also believe in <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">building relationships </strong>🤝and invite you to join us in our <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">Warsaw and Wrocław offices </strong>🏢. Enjoy <strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">a relaxed atmosphere </strong>🍃 and try some “home-made” pizza 🍕 from our office pizza oven. We l<strong style="border:0px solid rgb(238, 239, 242);font-weight:600;color:inherit;">ove having pets 🐶 in the office, </strong>so feel free to bring yours along.😁</p>

AAAFormularz aplikacyjnyJava Developer (Spring;5+)Nexio Management Sp. z o.o.Niezależnie i odrębnie od wskazanego powyżej pracodawcy eRecruiter i Grupa Pracuj odpowiadają za przetwarzanie Twoich danych podanych w formularzu aplikacyjnym.My, eRecruitment Solutions sp. z o.o. (eRecruiter) i Grupa Pracuj SA (Pracuj.pl) także odpowiadamy za przetwarzanie Twoich danych, kiedy wypełniasz formularz aplikacyjny. Jesteśmy współadministratorami Twoich danych w celu analizy czy zachęcić Cię do założenia Konta Kandydata, a jeśli założysz Konto Kandydata, także w dodatkowych celach opisanych szczegółowo w naszej Polityce Prywatności. Możesz od nas żądać dostępu do Twoich danych, ich sprostowania, usunięcia, ograniczenia przetwarzania, przeniesienia do innego administratora, jak również masz prawo wnieść sprzeciw lub złożyć skargę do Prezesa Urzędu Ochrony Danych Osobowych.Jeżeli masz jakiekolwiek pytania lub żądania, skontaktuj się z nami pod adresem: kandydat@erecruiter.pl lub z naszym inspektorem ochrony danych: iod@pracuj.pl. Więcej informacji znajdziesz w Polityce Prywatności.

Senior Backend Developer (TS + Node.js) OPEN 136 - 170 PLN/hour + VAT (B2B) 16 600 - 20 880 PLN gross (UoP) full time Gdańsk or hybrid model TypeScript Node.js NestJS AWS join our bright team about us At Bright Inventions (now Framna) we partner with ambitious brands to create digital products that make a meaningful impact. We work across the full product journey, from strategy and UX to engineering and long-term growth, combining technical expertise with a strong product mindset. Together with our partners, we build solutions that users rely on every day. Our culture is built on trust, ownership, and fearless collaboration. We challenge ideas, support each other, and keep learning-openly sharing feedback, staying flexible in how we work, and approaching each other with empathy. Because the best products are created by teams that move forward together. about project A next-generation passwordless authentication platform used by millions worldwide. It uses advanced biometrics to secure digital identities and enable one-touch access. The solution supports document and biometric verification, data processing, and configurable verification criteria. Please note that we follow a hybrid model with a requirement for regular in-office syncs to foster team collaboration. preferred skills and qualifications 👉 at least 5 years of commercial programming experience as a backend developer or fullstack developer with backend focus 👉 solid understanding of TypeScript/JavaScript 👉 deep experience with Node.js (NestJS) 👉 familiarity with AWS or other cloud providers 👉 hands-on experience with AI tools for coding, testing, and documentation, and supporting teammates with common technical challenges 👉 strong knowledge of databases (SQL and NoSQL) 👉 solid understanding of HTTP protocol, REST APIs, and web communication patterns 👉 we appreciate experience with React, HTML, and CSS in occasional frontend work 👉 experience with backend testing frameworks and testing strategies 👉 very good command of English and Polish (written and spoken) what you’ll find at Bright Inventions (now Framna) ✔️ real impact on the implemented solutions and project growth ✔️ business value over technical perfection ✔️ continuous feedback and open communication ✔️ mentoring program and 1:1 meetings ✔️ internal workshops and dev's meetings ✔️ flexible working hours (we start between 7.00 -10.00 a.m.) and remote work possibility ✔️ office in Gdańsk Wrzeszcz (hybrid model with regular in-office syncs – preference for local candidates) ✔️ good equipment: MacBook and testing devices  ✔️ individual training budget and office library ✔️ free English classes in small groups ✔️ MultiSport and private medical package (Compensa) ✔️ team buildings events we’re building a team where every member ✅ Takes initiative and full ownership in collaboration with both teammates and clients. ✅ Proactively spots opportunities for improvement and suggests solutions. ✅ Is adaptable and open to stepping outside of their core expertise, whether it's learning new technologies, adjusting to changing project needs, or taking on responsibilities beyond their usual role. ✅ Values teamwork, communicates openly, and shares constructive feedback ✅ Faces challenges with a positive, solution-focused attitude. ✅ Treats client products like their own, acting as a true business partner, not just a developer.

Python Backend Developer About the Project We are building a cutting-edge platform that transforms the consulting business by digitizing workflows, minimizing manual effort, improving success rates, and enabling data-driven collaboration. Our mission is to reshape the future of external workforce collaboration — and we invite you to join us in achieving this bold goal. Your Role We’re looking for a skilled Backend Developer (Python + Neo4j) to strengthen our team. If you’re passionate about high-performance systems, backend optimization, and scalable architecture, this role is for you. Key Responsibilities Design, develop, and maintain backend systems and APIs using Python (proprietary framework on top of FastAPI). Build and manage graph databases using Neo4j. Collaborate with frontend developers to ensure seamless integration. Focus on performance, scalability, and system efficiency. Maintain high code quality with type safety, security, and best practices. Troubleshoot and resolve backend issues to boost overall performance. Required Skills & Qualifications Proven experience in backend development with Python and OOP. Hands-on experience with Neo4j (or other graph databases). Experience with Redis or similar NoSQL solutions. Familiarity with Pandas, Numpy, and Pydantic modeling. Strong knowledge of performance optimization techniques. Experience with RESTful APIs, microservices, backend architecture. Knowledge of cloud platforms (AWS / GCP) is a plus. Strong communication and problem-solving skills. What We Offer ✅ Competitive salary & benefits✅ Flexible work environment✅ Work with cutting-edge technologies✅ Growth opportunities in an international team✅ A chance to make an impact by optimizing and scaling innovative systems 📩 If this sounds like your next career move, we’d love to hear from you!

Kogo poszukujemy? Skills: Strong technical skills specifically in cloud- based technology (AWS serverless or other public cloud is essential) and Java DevOps experience, especially with Terraform would be a big plus Quality driven with ability to write tests on any level with BDD & TDD approach Understanding microservices architecture Understanding of front-end technologies including Java Script, Android and iOS is a plus Comfortable working agile environment in a small cross functional team using XP practices What's in it for you? Prestigious position at one of the world's largest banks B2B contract Hybrid work (6 days per month from the office in Cracow) and flexible working hours Working with cutting-edge IT technologies Personal growth and development opportunities Private healthcare coverage and multisport card Referral program and company events Recruitment process: two meetings with hiring managers, followed by a phone screening with our recruiter Hybrid work: 6 days per month from the office in Cracow Czym będziesz się zajmować? Do you want to work for one of the world’s largest global banks? Want to be part its exciting digital transformation? Do you want to engineer incredible products for millions of customers? Well, our Client offers just that ☺︎ About the project: This role is part of the Third-Party Services team, which partners with top global vendors to bring innovative digital products to the bank and its 40+ million customers. One of our key solutions is a global digital identity verification and authentication service that allows any market to confirm a person’s identity via API integration. The product enables users to capture a government-issued ID (passport, driver’s license, or national ID) and verifies its authenticity in real time. It also performs a fully digital anti-impersonation check to ensure secure and seamless onboarding. What will you do: Defining, building and testing technical solutions in an agile environment. The platform is primary using Java & JavaScript (React.js) hosted on public cloud Writing infrastructure terraform/cloud formation and CI/CD pipelines in groovy Writing unit tests in Spock, e2e tests in Cucumber, contract-based tests in PACT Defining architecture and solutions including R&D on cloud and 3rd party vendors’ services Jakie otrzymasz benefity?

Działamy od 2021 roku i jesteśmy częścią Żabki Future, jednostki biznesowej z Grupy Żabka. Specjalizujemy się w tworzeniu aplikacji mobilnych oraz transformacji branży e-commerce w Polsce. Powstaliśmy, aby odpowiadać za innowacje technologiczne, które zwiększają wartość Grupy i poziom korzystania z usług przez jej konsumentów i konsumentki. 🚀 Stworzyliśmy aplikację Żabka Jush, dostępną w wersji na iOS oraz Android, umożliwiającą dostawę Twoich ulubionych produktów pod same drzwi. Możesz zamówić swoje zakupy na Jush! i otrzymać je nawet w 15 minut lub w supermarkecie delio, który pozwoli Ci na dopasowanie godziny dostawy do Twoich potrzeb, a gdy nabierzesz ochoty na coś wyjątkowego, swoje zakupy możesz uzupełnić starannie wyselekcjonowanymi alkoholami z Alcostore. W Lite e-Commerce tworzymy najnowocześniejsze rozwiązania, które ułatwią Ci życie. Aktualnie poszukujemy osoby na stanowisko Junior Backend Developer (he/she/they), która dołączy do bohaterek i bohaterów Lite w misji rozwoju technologicznego świata! 🦸💙 🎯 Będziesz odpowiadać za: tworzenie i utrzymywanie rozwiązań backendowych dla platformy e-Commerce;współpracę z zespołem nad wspólną platformą dla Żabka Jush, Delio i Alcostore;optymalizacja i automatyzację procesów, dążąc do zwiększenia efektywności i jakości ✅ Zaaplikuj do nas, jeśli: masz pierwsze doświadczenia w pracy komercyjnej (ok. 3–6 miesięcy) przy tworzeniu aplikacji backendowych;pracujesz z Node.js i dobrze znasz TypeScript;masz doświadczenie z PostgreSQL oraz Redis;chętnie się rozwijasz i jesteś otwarty/a na naukę nowych narzędzi i technologii;zależy Ci na zrozumieniu kontekstu biznesowego, chcesz wiedzieć nie tylko jak, ale i dlaczego budujesz dane rozwiązanie;rozumiesz podstawy działania systemów backendowych i potrafisz samodzielnie realizować zadania;szybko się uczysz i chcesz rozwijać swoje umiejętności, zdobywając nowe doświadczenia.znasz język angielski (min. B1/B2). ⭐ Mile widziane: znajomość Dockera i/lub GraphQL;doświadczenie w pracy z architekturą rozproszoną (mikroserwisy, event-driven);korzystanie z narzędzi AI w codziennej pracy; 🎁 Zapewniamy: Wynagrodzenie: 7,000 -9,000 tys. PLN netto + VAT miesięcznie w ramach umowy B2B; możliwa także umowa zlecenie;współpracę w 100% zdalną, ale zawsze możesz nas odwiedzić w biurze w Warszawie;dynamiczne i nowoczesne środowisko;dofinansowanie karty MultiSport, opieki medycznej Lux Med i ubezpieczenia Uniqa;możliwość uczestnictwa w innowacyjnym projekcie i transformacji obszaru handlowego w Polsce;sprzęt i narzędzia niezbędne do pracy. 🙌 A oprócz tego: brak oficjalnego dress code’u 💼🚫nowe, przytulne biuro w samym centrum Warszawy 📍🏢pracę z ekspertami z topowych sieci spożywczych, e-commerce i firm technologicznych 🌐świetną i przyjazną atmosferę 🫂pomocną dłoń w każdej sytuacji 🤝💙 Sprawdź, jak wygląda nasz proces rekrutacyjny: 📩 Przesyłasz nam swoje CV, a my analizujemy dokumenty, które od Ciebie otrzymaliśmy.📲 Jeśli wpiszesz się w nasze wymagania zaprosimy Cię na pierwszą rozmowę rekrutacyjną - rozmowę telefoniczną z naszym Zespołem HR👉 Kolejnym etapem będzie techniczna rozmowa online. Poprowadzą ją członkowie zespołu i potrwa około 60 minut. 🗣️ Na koniec zaprosimy Cię na krótkie spotkanie z Michałem, Chief Technology Officerem.🎉 Jeśli wszystko pójdzie dobrze - witamy na pokładzie Lite e-Commerce! Poznaj nas bliżej! 💙👉 https://linktr.ee/lite_ecommerce

Formularz aplikacyjny .NET Developer (MID) Nexio Management Sp. z o.o. Formularz aplikacyjny Nexio Management Sp. z o.o. Niezależnie i odrębnie od wskazanego powyżej pracodawcy eRecruiter i Grupa Pracuj odpowiadają za przetwarzanie Twoich danych podanych w formularzu aplikacyjnym. My, eRecruitment Solutions sp. z o.o. (eRecruiter) i Grupa Pracuj SA (Pracuj.pl) także odpowiadamy za przetwarzanie Twoich danych, kiedy wypełniasz formularz aplikacyjny. Jesteśmy współadministratorami Twoich danych w celu analizy czy zachęcić Cię do założenia Konta Kandydata, a jeśli założysz Konto Kandydata, także w dodatkowych celach opisanych szczegółowo w naszej Polityce Prywatności. Możesz od nas żądać dostępu do Twoich danych, ich sprostowania, usunięcia, ograniczenia przetwarzania, przeniesienia do innego administratora, jak również masz prawo wnieść sprzeciw lub złożyć skargę do Prezesa Urzędu Ochrony Danych Osobowych. Jeżeli masz jakiekolwiek pytania lub żądania, skontaktuj się z nami pod adresem: kandydat@erecruiter.pl lub z naszym inspektorem ochrony danych: iod@pracuj.pl. Więcej informacji znajdziesz w Polityce Prywatności.

Kogo poszukujemy? Responsibilities: development of a system responsible for collecting and transmitting market data in real-time, planning technical work and participating in architectural decisions, monitoring application performance and code profiling, optimization for microseconds, identifying and eliminating performance bottlenecks at the code, JVM, and network levels, integration with data providers and creating custom solutions for data retrieval and processing, team support: code review, knowledge sharing, close collaboration with Quant and Trading teams to understand, analyze, and implement trading algorithms. We offer: Attractive salary Sports package Medical package Opportunity to work on interesting projects Czym będziesz się zajmować? Requirements: minimum 5 years of experience in Java programming, very good knowledge of Java language and multithreading concepts, familiarity with Kafka, gRPC, REST, WebSockets, PostgreSQL, Cassandra, Elasticsearch higher education (preferably in computer science or related fields), communication skills and ability to effectively collaborate with a team, fluent in spoken and written Polish, communicative knowledge of English language ability to quickly learn new technologies and willingness to share knowledge with the team, knowledge and practical application of Clean Code principles, ability for analytical thinking and solving complex problems.

Kogo poszukujemy? 5+ years building backend systems at scale with Python or Kotlin. Experience with distributed systems on AWS, Kubernetes and MySQL/PostgreSQL. Proficiency in SQL and data rich environments. Strong system design skills and track record delivering maintainable services. Familiarity with CI/CD and safe production deployments. Experience with observability and incident response; participation in on-call rotations. Strong written and verbal English communication. Czym będziesz się zajmować? Own and deliver quarterly team goals; lead engineers through ambiguity and drive execution. Design and implement backend services and APIs using Python or Kotlin within microservice and event-driven architecture. Build scalable fraud tooling and infrastructure in collaboration with Product, Compliance, Machine Learning and Fraud Ops. Improve system reliability and architecture; maintain high observability standards and participate in on-call rotation. Contribute to technical design, code quality and mentoring; represent team in cross-functional initiatives.

<p><strong>Who we’re looking for!</strong></p><p>We’re excited to announce an opportunity for a Senior .Net Developer to join our Asset Finance team in Gdansk. In this role, you will play a key part in developing, maintaining, and modernizing our solutions.</p><p>As part of our Asset Finance team, you'll help businesses unlock growth by providing innovative financing solutions for essential assets like vehicles and equipment. As a market leader in the Nordics, collaborating with some of the largest car brands, and powering the majority of all Nordic financed cars, you’ll play a key role in creating solutions that make these assets more accessible, enabling clients to achieve ambitious goals and drive lasting success.</p><p>You’re strongly aligned with our <strong>Employee DNA</strong> which celebrates curiosity, collaboration, competence, and customer focus. <strong><br></strong></p><p><strong>What does the role look like?</strong></p><ul><li><p>Develop, test, and maintain software applications using .NET and C#</p></li><li><p>Work closely with architects, engineers, product managers and product owners to understand business requirements and technical specifications</p></li><li><p>Write clean, maintainable, and efficient code following industry best practices</p></li><li><p>Participate in code reviews, providing constructive feedback to ensure code quality</p></li><li><p>Collaborate with other departments in an international environment, delivering on team’s goals.</p></li></ul><p><strong>Succeeding the Banqsoft way – Employee DNA</strong></p><p><strong>Curiosity:</strong> We embrace the 'Why?’. It’s the spark that ignites learning, innovation, and progress</p><p><strong>Collaboration:</strong> Team players with diverse perspectives have more fun building together</p><p><strong>Competence:</strong> We're hungry for more! Ever ready for new skills and always seeking to learn</p><p><strong>Customer Focus:</strong> We're dedicated to enabling our customers' success. We deliver the benefits of technology to make a difference in society, business, and everyday life</p><p><strong>Are we a great match?</strong></p><p>To master the Senior .Net Developer role, we believe that you have:</p><ul><li><p>At least 4 years’ experience with .NET C# development (backend or full-stack),</p></li></ul><ul><li><p>Strong English and Polish communication skills allowing efficient communication in an international environment,</p></li></ul><ul><li><p>Working closely with the team to identify and solve technical challenges,</p></li></ul><ul><li><p>Collaborating with other departments in an international environment, delivering on team’s goals,</p></li></ul><ul><li><p>Understanding well the business context of the team/product and having an overview of the company-wide business context.</p></li></ul><p><strong>Preferred skills and experience:</strong></p><ul><li><p>Proficiency in C# and .NET,</p></li></ul><ul><li><p>Experience in REST,</p></li></ul><ul><li><p>GIT, Azure DevOps,</p></li></ul><ul><li><p>T-SQL, Microsoft SQL Server,</p></li></ul><ul><li><p>Strong understanding of software design principles, patterns, and best practices,</p></li></ul><ul><li><p>Analytical and problem-solving skills, with a keen attention to detail,</p></li></ul><ul><li><p>Agile and Scrum methodologies,</p></li></ul><ul><li><p>Financial or banking sector interest.</p></li></ul><p>If you believe this role aligns with your career aspirations, we would very much like to hear from you!</p>

We're looking for a skilled Senior Java Developer with a passion for building robust, high-scale SaaS platforms. You'll join a cross-functional team developing a mission-critical product for the electric mobility domain, focused on delivering cloud-first solutions for global infrastructure management with a strong emphasis on performance, scalability, and integration. Responsibilities Contribute to the design and development of a modular, enterprise-grade SaaS platform Build and optimize features related to billing, CRM, user lifecycle, and system operations Collaborate on architectural decisions to ensure high availability and performance Drive enhancements in system scalability, and integration with external services Participate in code reviews and help maintain high engineering standards Requirements 5+ years of experience in Backend development Proficiency in Java or Kotlin with the Spring Boot framework Hands-on experience with microservices architecture Experience building SaaS applications with high throughput Strong understanding of Object-Oriented Design (OOD) Experience working with relational databases (e.g., MySQL, PostgreSQL) Familiarity with Docker Collaborative mindset and experience working in cross-functional teams Will be a plus In-depth knowledge of Hibernate Experience with messaging brokers (ActiveMQ or RabbitMQ) Strong SQL skills Familiarity with a public cloud provider (AWS, GCP, or Azure) Experience with non-blocking programming (e.g., Vert.x) Understanding of event-driven architecture What we offer Competitive salary and benefits package Medical insurance Full Remote Collaborative and innovative work environment Career growth and development opportunities A chance to work with a talented and driven team of professional About the project Our client is building a cloud-first platform that helps global infrastructure providers manage and scale electric charging networks with ease. The system supports 150,000+ connected devices, processes hundreds of millions of sessions monthly, and is trusted in over 30 countries. It offers modular tools for operations, billing, fleet coordination, and intelligent energy distribution — all built on open, integration-ready standards. The solution enables providers to expand their footprint, reduce costs, and deliver a seamless end-user experience. Its flexibility and scale make it a core engine for future-ready, sustainable transport ecosystems.

Formularz aplikacyjny Java Developer (Azure) Nexio Management Sp. z o.o. Formularz aplikacyjny Nexio Management Sp. z o.o. Niezależnie i odrębnie od wskazanego powyżej pracodawcy eRecruiter i Grupa Pracuj odpowiadają za przetwarzanie Twoich danych podanych w formularzu aplikacyjnym. My, eRecruitment Solutions sp. z o.o. (eRecruiter) i Grupa Pracuj SA (Pracuj.pl) także odpowiadamy za przetwarzanie Twoich danych, kiedy wypełniasz formularz aplikacyjny. Jesteśmy współadministratorami Twoich danych w celu analizy czy zachęcić Cię do założenia Konta Kandydata, a jeśli założysz Konto Kandydata, także w dodatkowych celach opisanych szczegółowo w naszej Polityce Prywatności. Możesz od nas żądać dostępu do Twoich danych, ich sprostowania, usunięcia, ograniczenia przetwarzania, przeniesienia do innego administratora, jak również masz prawo wnieść sprzeciw lub złożyć skargę do Prezesa Urzędu Ochrony Danych Osobowych. Jeżeli masz jakiekolwiek pytania lub żądania, skontaktuj się z nami pod adresem: kandydat@erecruiter.pl lub z naszym inspektorem ochrony danych: iod@pracuj.pl. Więcej informacji znajdziesz w Polityce Prywatności.

Salary range: 22,000 - 26,000 PLN net + VAT B2B Your position in our team Join an engineering team that values mutual respect, helpfulness, team spirit, and a fun working environment Design our software solutions as part of a very experienced and motivated cross-functional team and spend your working hours programming instead of in conference rooms Develop the product together with your teammates and in close cooperation with the product management using modern technologies and frameworks Contribute your ideas thanks to flat hierarchies and be part of the implementation process Use the freedom to think outside the box and see the big picture of our applications Independently develop further fields of activity (DevOps, QA, build management) and work on our market-leading B2B fitness platform (Kubernetes in AWS) Your profile At least 5 years of relevant professional experience in the development and conception of software in Java with Spring, Hibernate and other common open source frameworks Ideally, you bring know-how in the development and operation of scalable applications Experience in handling automated tests (unit tests, acceptance tests) and the conviction that this is an important part of good software development A high quality awareness and the willingness to improve yourself every day Interest in new programming trends and good teamwork in an international and multicultural environment as well as confident communication in English Your Benefits with us Benefits package – private medical care and a sports card to support your health and well-being Flexible working hours – manage your schedule and enjoy a real work-life balance Flexible work model – work fully remotely or combine it with on-site collaboration at our modern office in Warsaw Flexible employment options – choose the type of contract that best suits your needs Access to Udemy Business – grow your skills with thousands of high-quality online courses Unique experience in the Fitness and SaaS industry – join a market-leading company in a dynamic, fast-growing field International team – collaborate with talented colleagues from around the world in a diverse and inclusive environment Unforgettable company events – take part in engaging team-building activities and memorable celebrations No dress code – express your personal style and feel comfortable at work Our job advertisements are open to all applicants regardless of gender, age, nationality, religion, social background, disability or sexual orientation. The Sport Alliance stands for diversity and, as a member of the Diversity Charter, is committed to a prejudice-free, open and progressive working environment. Your Job at  Sport Alliance Headquartered in Hamburg, Sport Alliance is one of the leading software companies in the fitness industry, specializing in providing software solutions for efficient studio management, financial services, and mobile applications. The company serves over 10,000 gyms, including 14 out of Europe’s top 30 chains and 130 international chains in 55 countries – like FitX, Fitness First (LifeFit Group), McFIT (RSG Group), clever fit, and Bodystreet. The product portfolio contains Magicline, one of Europe’s leading membership management ERP solutions for the fitness market, assisting fitness studio operators in optimizing and digitizing their facilities. Complementing Magicline is PerfectGym with its gym software focusing on international chains and franchises. Part of the company is also MySports, the member platform tailored to enhance the gym experience for members. Additionally, Sport Alliance’s portfolio includes Finion, a financial services provider dedicated to supporting studios in efficiently managing membership fees, from billing to debt collection. More information about the company is available on our website. You haven't found the right position for you yet? Here you can find more job offers! MAGICLINE A Sport Alliance Company Learn more DANIEL WISCHER SVP Global Enterprise Solutions We work continuously with our customers and partners to create the best digital customer experience. With Magicline, we have created one of the most flexible solutions on the market that can be used by small studios and international chains. Our goal: Our customers' success. KONSTANTIN WOLKOWA COO & CPO For over 30 years, our sports-mad team has been working closely with our customers to provide them with comprehensive software that digitises the entire customer journey. SVEN EISMANN Senior Vice President Contract Negotiations Through the constant further development of our platform, we ensure, like no other provider, that our customers will still have a robust and innovative software solution to hand in 10 years.

Job description Role: As a Backend Developer, you will be responsible for driving backend project ownership, delivering second-level support, and actively promoting continuous improvements across systems, processes, and code quality. This role involves managing both legacy and modern projects while working independently within a small team environment. The ideal candidate is a proactive problem solver, adaptable across diverse systems and technologies, and thrives in dynamic, multi-project settings. What we offer: B2B rate: up to 140 PLN/h Work in an international project environment Access to international training and certifications (e.g. Microsoft MCP) Opportunities for professional development and knowledge sharing Possibility to access optional benefit platforms (medical care, sports card, insurance, language courses) Collaborative and supportive project environment Job requirements Required skills & experience Advanced experience with MS SQL Server (T-SQL), including stored procedures, functions, and error handling Strong background in .NET backend development Proficiency in C# Hands-on experience with the Azure environment Familiarity with Azure DevOps Ability to write clean, maintainable, and well-documented code Understanding of deployment processes and release pipelines Openness to and experience with AI-assisted development tools Strong problem-solving skills and attention to detail Proficiency in English (spoken and written) Proactive and self-driven mindset Nice to have: Experience with Supabase (PostgreSQL) Soft skills: Openness in communication within an international team, including constructive challenge and initiative-taking Proactive attitude and willingness to take ownership Ability to collaborate effectively in a distributed, multicultural environment

Java Developer (F/M/N)Chcesz pracować przy projekcie, który naprawdę robi wrażenie?Szukamy osoby programującej w języku Java. To świetna okazja, by poszerzyć swoje kompetencje w pracy z nowoczesnym stackiem technologicznym i wpływać na kluczowe decyzje projektowe.AGILEAngularJavaJiraRabbitMQSpring BootTypeScriptOFERUJEMY:Udział w jednym z najbardziej wymagających i rozbudowanych projektów w branży.Pracę w doświadczonym zespole, który dzieli się wiedzą.Możliwość rozwoju w zakresie nowych technologii i architektury systemów.Atrakcyjne warunki zatrudnienia dopasowane do Twojego doświadczenia.Zatrudnienie w oparciu o umowę o pracę lub kontrakt B2B.Sprawny proces rekrutacyjny.Możliwość pracy w systemie hybrydowym.Atrakcyjne wynagrodzenie oparte o wykształcenie i doświadczenie.Świetne połączenie komunikacyjne biura.Prywatną opiekę medyczną.MultiSport.Wsparcie socjalne.Wczasy pod gruszą.ZAKRES OBOWIĄZKÓW:Programowanie po stronie backend.Rozwój modułów aplikacji webowych.Tworzenie testów jednostkowych i integracyjnych.Współpracę techniczną z dostawcami zewnętrznych rozwiązań.Rozwiązywanie złożonych problemów projektowych w środowisku z komunikacją synchroniczną i asynchroniczną.Pracę w metodykach zwinnych.POSZUKIWANE KOMPETENCJE:Wykształcenie wyższe techniczne (preferowane: informatyka, telekomunikacja lub kierunki pokrewne),Minimum 5-letnie doświadczenie z językiem JavaPraktyczna znajomość: Spring (Spring Boot), Hibernate, Envers, Querydsl, REST, AMQP,Doświadczenie z bazami danych: PostgreSQL, Oracle,Znajomość narzędzi: Git, SVN, Perforce, IntelliJ IDEA/Eclipse, NetBeans, Jira, Confluence, Maven/Gradle, Weblogic, Tomcat, RabbitMQ,Doświadczenie w pracy z aplikacjami wykorzystującymi komunikację asynchroniczną,Praktyka w systemach Linux i Windows,Znajomość języka angielskiego na poziomie technicznym,Doświadczenie w pracy zarówno w zespole, jak i samodzielnie.Mile Widziane:Doświadczenie jako DevOps lub udział we wdrożeniach projektówUdział w wielu projektach wykorzystujących różne technologieZnajomość Angular/Typescript, Camunda, Docker, Spock, JunitRODZAJ PRACY: Hybrydowa FORMA ZATRUDNIENIA:B2B/UoPMIEJSCE PRACY:Warszawa Grochowska 278 aplikuj

Overview:SOFTSWISS continues to expand the team and is looking for a Senior Go Developer. We need a true, experienced and accomplished professional who shares our culture and values.Purpose of the Role:You’ll design and build scalable backend solutions in Go, helping to shape the architecture of a high-load, business-critical system.You’ll collaborate closely with the team, contribute to strategic technical decisions, and ensure code quality through thoughtful reviews and clean, testable implementation.Your deep understanding of system internals, distributed architecture, and data integrity will drive reliability, performance, and long-term maintainability.About Product:SOFTSWISS Sportsbook PlatformA sports betting platform that allows you to operate a sports betting business onlineLearn MoreKey Responsibilities:Collaborating within a team using the Scrum methodology and participating in planning your own workflowEngaging in architectural, infrastructure, and other strategic decision-making processesConducting code reviews for other team members and documenting your own codeRequired Experience:7+ years of professional software development experienceAt least 4 years of recent programming experience with Go as the primary languageStrong understanding of Go internals: data structures, multithreading, memory management, garbage collection, etc.Experience with relational databases, including the ability to write and optimize complex SQL queriesSolid knowledge of Linux and an understanding of containerization (we use Docker)Ability to write testable code and corresponding unit testsExperience working with Kafka and KubernetesEnglish - IntermediateRussian - Upper-IntermediateNice to have:Experience in developing applications in finance or other fields where data integrity is a key requirementUnderstanding the principles of distributed applications and microservice architectureFamiliarity with one or more modern approaches to back-end application design (e.g., DDD, Clean Architecture, Hexagonal Architecture)Experience with PostgreSQL and ClickhouseOur Benefits:Full-time remote work opportunities and flexible working hoursPrivate insuranceAdditional 1 Day Off per calendar yearSports program compensationComprehensive Mental Health ProgrammeFree online English lessons with a native speakerGenerous referral programTraining, internal workshops, and participation in international professional conferences and corporate events.

Zadania Tworzenie, wdrażanie i utrzymywanie usług backendowych, które są skalowalne, niezawodne i łatwe do rozbudowy. Konfigurowanie i zarządzanie infrastrukturą, narzędziami automatyzacji oraz potokami wdrożeniowymi. Pełna odpowiedzialność za usługi obsługiwane przez Twój zespół, w tym udział w rotacji dyżurów on-call. Monitorowanie wydajności systemu i zapewnienie płynnego działania usług po wdrożeniu. Wymagania Minimum 4 lat praktycznego doświadczenia w rozwoju backendu. Mocne umiejętności programowania w języku Java. Doświadczenie w pracy w środowiskach Linux. Chęć ciągłego aktualizowania wiedzy o nowoczesnych praktykach i technologiach rozwojowych. Znajomość projektowania skalowalnych, rozproszonych systemów. Zrozumienie kluczowych zasad inżynierii, w tym ciągłego wdrażania, programowania defensywnego i testowania automatycznego. Dobra znajomość struktur danych i algorytmów oraz umiejętność ich efektywnego wykorzystania w rozwiązywaniu problemów. Oferujemy Międzynarodowy projekt Możliwość pracy hybrydowej z przewagą zdalnej Prywatna opieka medyczna Elastyczne godziny pracy Nowoczesne biuro Świetna atmosfera pracy Ciekawy międzynarodowy projekt dopasowany do Twoich ambicji Wiele możliwości rozwoju Java Developer I hereby consent to having my personal data processed and I have readTerms of Use*

Kogo poszukujemy? WYMAGANIA Posiada min. 4 lata doświadczenia w programowaniu w .NET Core / C# Bardzo dobrze zna relacyjne bazy danych (SQL Server) i potrafi je optymalizować Ma doświadczenie w pracy z usługami Microsoft Azure (App Services, Functions, Storage, DevOps) Zna Cosmos DB lub inne bazy NoSQL i wie, kiedy je stosować Potrafi pracować z narzędziami wyszukiwawczymi jak Elasticsearch lub Azure AI Search Korzysta z systemów kontroli wersji (Git) i rozumie proces CI/CD Posługuje się językiem angielskim na poziomie umożliwiającym komunikację biznesową MILE WIDZIANE Znajomość wzorców architektonicznych (DDD, CQRS, mikroserwisy) Doświadczenie z konteneryzacją (Docker, Kubernetes) Wiedza w obszarze monitoringu i logowania (np. ELK, Application Insights) Praktyka w pracy z narzędziami Atlassian (Jira, Confluence, Bitbucket) Umiejętność pisania testów integracyjnych i automatyzacji wdrożeń Czym będziesz się zajmować? Projektowanie i implementacja nowych funkcjonalności backendowych platformy goodie w technologii .NET Core Rozwój i utrzymanie mikroserwisów oraz integracja z systemami bankowymi i zewnętrznymi partnerami Tworzenie i optymalizacja zapytań do baz danych (SQL Server, Cosmos DB) Implementacja i rozwój wyszukiwarek treści Współpraca z zespołem przy projektowaniu architektury, tworzeniu API i dokumentacji (Swagger/OpenAPI) Udział w analizie wymagań, refinementach backlogu i planowaniu sprintów Dbanie o jakość kodu poprzez testy jednostkowe, code review i zgodność z dobrymi praktykami

PHP Backend Developer RECRUITED BY: WAZDAN SERVICES LIMITED We value clean, tested code, a pragmatic approach to architecture and a tangible impact on the product. If you have solid experience with PHP 8+, Symfony frameworks, enjoy technical challenges and want to work with people for whom code quality is more than a slogan, we’re waiting for you. Game Dev Full-time On- site - Opole Hybrid B2B Contract of Mandate Mid Technologies we use: Required: Linux Git CI/CD MySQL Docker Jira/Confluence GitLab PHP 8.x Symfony 6 About the project Breakdown of responsibilities: • Designing solutions and creating documentation: 10% • Implementing new functionalities: 50% • Working on developer tools: 20% • Handling ongoing requests: 20% Requirements You’re a perfect fit if: You have at least 2 years of commercial experience with PHP 8.x You know object-oriented PHP and Symfony 6 very well You have an excellent command of relational databases and SQL You have experience working with Git and GitLab You are familiar with Docker and Linux You have experience with CI/CD You know the DDD and CQRS approach You have experience working with JIRA Preffered Nice to Have: Ability to write unit and integration tests Experience with CI/CD in a GitLab environment Experience working with Python Experience working with Docker Additional experience working in a Linux environment Job Description You will be responsible for: Creating and developing systems and applications Developing existing functionalities Creating and maintaining technical documentation Providing input during project meetings Implementing best programming practices, optimising application performance and availability

Senior Java Developer – Securities Services Team Krakow, Warszawa Hybrid Agile DevOps Java English, Polish Mid-Level, Senior Banking Developer Unleash innovation in fintech — craft transformative solutions for the securities industry. Warszawa or Kraków-based opportunity with a hybrid work model (up to 4 remote days per week). As a Senior Java Developer working for our client, you will be a vital part of the TA IT team within the Securities Services cluster, focusing on delivering cutting-edge solutions for operational teams. You will be actively involved in technical discussions, decision-making processes, and collaborating with cross-location squads to ensure the robustness, quality, and sustainability of our applications. This role offers a unique chance to work in a dynamic, international environment, fostering growth and technical excellence. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with business needs. Participate in technical discussions to drive innovative solutions and best practices. Collaborate with Business Analysts, Developers, and other stakeholders across locations to ensure project continuity. Contribute to code reviews, testing, and deploying scalable software as part of agile squads. Troubleshoot and resolve complex technical issues, providing quick and effective solutions. Document technical specifications and ensure adherence to compliance and security standards. Stay updated with the latest industry trends and incorporate new technologies into the development lifecycle. You're ideal for this role if you have: Minimum 4 years of experience in Java development within enterprise environments. Strong knowledge of Java core technologies and frameworks. Experience working with cross-functional and international teams. Excellent communication skills in Polish and English, with fluent command of both languages. Familiarity with Agile methodologies and DevOps practices. Ability to adapt quickly to changing project requirements and priorities. Strong problem-solving skills and attention to detail. It is a strong plus if you have: (optional) Experience working on financial or securities-related projects. Knowledge of additional programming languages or frameworks. Certifications related to Java development or agile methodologies. Language Required for the role: Polish: Fluent English: Fluent Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. Internal number #8769 BENEFITS ITDS Clubs Access to medical insurance Access to Multisport Access to Pluralsight Integrational Events Ambassador Program 18 900 - 24 150 PLN (B2B)

Kogo poszukujemy? Do zespołu IT Hero szukamy studenta lub studentki na stanowisko Programisty / Programistki Java. Dyspozycyjność minimum 3 dni w tygodniu. Gotowość do pracy z biura podczas 3-miesięcznego okresu wdrożenia oraz do pracy hybrydowej po jego zakończeniu. Czym będziesz się zajmować? Osoba na tym stanowisku będzie brała udział w rozwijaniu projektu realizowanego dla międzynarodowej platformy rekrutacyjnej. Praca obejmuje rozwój i utrzymanie aplikacji backendowych opartych o Spring Framework oraz współpracę z doświadczonym zespołem developerskim.

Kogo poszukujemy? Solidne doświadczenie developerskie - bardzo solidny exp komercyjny min. 6 lat doświadczenia zawodowego jako developer Solidne doświadczenie developerskie backend Python jak podstawowe doświadczanie - minimum 5 lat Solidna znajomość frameworków Python Doświadczenie komercyjne z ML / NLP Znajomość PyTorch, TensorFlow, Numpy, Keras, Datadog Znajomość języka angielskiego werbalna na poziomie min. B2, ze wskazaniem na C1 (fluent English) Znajomość języka polskiego werbalna na poziomie min. B2 Czym będziesz się zajmować? Kontrakt B2B dla doświadczonego developer Python AI / ML Badanie i projektowani modeli NLP i ML Dodawanie komponentów LLM do głównych procesów produktu, dbając o ich niezawodność, wydajność i bezpieczeństwo. Współpraca z inżynierami, menedżerami produktu i zespołem QA, aby dostarczać funkcje AI spełniające potrzeby klientów. Budowanie pipelines danych do trenowania i testowania Pozycja software developerska jako część zespołu wdrożeniowego, nie jest to samodzielna praca Akces do aktualnego zespołu wdrożeniowego - otwarte dodatkowe pozycje, team kilku osobowy Wdrażanie funkcjonalności backendowych powiązanych z integracją / wdrożeniami AI / ML jako kluczowa odpowiedzialność projektowa Udział w projektowaniu rozwiązania Współpraca z zespołem wdrożeniowym - złożony zespół: PO / PM/QA Projekt bazuje na wykorzystaniu sztucznej inteligencji oraz uczenia maszynowego, wiec jest okazją do rozwoju kompetencji w tym obszarze

Empower the future of digital financial services — lead innovative backend solutions at the forefront of global disbursements! Krakow-based opportunity with hybrid work model. As a Senior Java Backend Engineer – Test Automation & Microservices, you will be working for our client, a leading provider of payment platform solutions that enable seamless, fast, and secure transfer of funds worldwide. Your expertise will drive the development of scalable backend services, shaping the core infrastructure that empowers organizations to deliver financial services effortlessly on a global scale. Join us to be part of a pioneering team revolutionizing the payments industry through innovation and precision. Your main responsibilities: Provide technical leadership and mentorship to a team of engineers, guiding them to success Lead the design and development of backend services and microservices using Java 8/11/17 Drive the team’s strategy for automated testing, promoting best practices and overseeing the implementation of automation frameworks to reduce costs Architect solutions to reduce cost and complexity by migrating to modern integration patterns like APIs, Kafka, or microservices Oversee the enhancement of Straight-Through-Processing (STP) capabilities of services You're ideal for this role if you have: At least 10 years of professional experience in software engineering At least 3 years of experience in a technical leadership or lead developer role Strong proficiency in Java 8+ (Java 17+ preferable) Deep understanding of microservices architecture, design patterns, and best practices Advanced, hands-on experience in software testing, including designing and implementing test automation frameworks Knowledge of Spring/Spring Boot Working understanding of RESTful microservices and APIs Experience with database technologies and SQL (Oracle preferred) It is a strong plus if you have: (optional) Experience with Test-Driven Development (TDD) methodologies Knowledge of scripting languages (e.g., Python, Bash) Experience working in a QA team Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role.

Senior .NET Developer – Banking and Financial Solutions Warszawa Hybrid .NET Docker Kubernetes MS-SQL PostgreSQL SQL Polish Mid-Level, Senior Banking, Finance Developer Unleash innovation in digital banking — shape the future of financial technology! Warszawa-based opportunity with a hybrid work model (up to 4 days remote per week). As a Senior .NET Developer working for our client, a leader in online banking and financial solutions, you will contribute to advancing secure, high-performance banking platforms. Join a dynamic team dedicated to delivering reliable, innovative digital financial services that transform how users access and manage their finances. This is the perfect environment for driven professionals eager to make an impact in the fintech industry. Your main responsibilities: Design and develop new features in .NET 8 to enhance banking functionalities. Implement and optimize SQL-based data access for high performance. Build and maintain containerized applications using Docker and Kubernetes. Collaborate effectively with distributed teams in an Agile environment. Participate in developing secure payment solutions. Share knowledge and support less experienced team members. Ensure code quality through thorough code reviews and testing procedures. Maintain existing functionalities and resolve production issues. Manage your own time and responsibilities while working remotely. You're ideal for this role if you have: Minimum of 4 years of experience in developing IT systems. Strong hands-on experience with .NET development. Solid knowledge of PostgreSQL and MS SQL databases. Practical understanding of Agile software development methodologies. Excellent communication skills in a distributed team environment. Ability to work independently and manage time effectively. Experience in developing new features and maintaining existing systems. Passion for software development and continuous improvement. Experience with Docker and Kubernetes. It is a strong plus if you have: (optional) Knowledge of banking domain, such as payments and transactions (e.g., Elixir, Sorbnet). Language Required for the role: Polish – Good command (communicative level) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English or Polish) along with a statement confirming your consent to the processing and storage of your personal data.