senior java backend engineer java 21 spring boot

Cosmose AI is seeking a strong Mid or Senior Java Engineer to scale the backend of our KaiKai Lock Screen and CMS, processing content for millions of users daily. You will design and maintain backend services, build scalable data pipelines, and collaborate with Product, Content, and Data teams to deliver meaningful features.We value ownership, proactive...

Kramp is seeking Senior Backend Engineers (Java) to own core domains end-to-end in a dynamic, international team. You will work on scalable APIs, bidding a product mindset across the full development lifecycle while collaborating with product owners and other engineers.The role offers a generous hybrid model and exposure to Kramp’s digital platforms across...

Luxoft is looking for a Java Developer to join their team in Wrocław, Poland. The role involves designing, developing, and maintaining backend services using Java 11+ and Spring Boot in a microservices architecture.The ideal candidate will have strong experience in building RESTful APIs, using Azure cloud technologies including AKS, and implementing...

Capgemini Polska is hiring an experienced Java developer to design, build and maintain Java-based applications supporting public sector processes. You will work with Spring, Hibernate and Kubernetes in a modern CI/CD environment, shaping solutions with architects and product teams in cross‑functional, international groups.Join a company that values...

Vyntra Global, Warsaw-based, is seeking a Backend Software Developer to join the Financial Crime Product Development team in a hybrid setup (2 days on site). You will design and maintain Java backend services within a small autonomous agile team, delivering high-scale, production-grade software for banks and financial institutions.The role emphasizes...

Ness Solution poszukuje Starszego Programisty Java do zespołu odpowiedzialnego za rozwój i utrzymanie zaawansowanych aplikacji backendowych wspierających bezpieczeństwo ruchu lotniczego. Wymagane jest bogate doświadczenie w projektowaniu i tworzeniu nowoczesnych rozwiązań opartych o Javę, która chce mieć realny wpływ na rozwój systemów o...

A technology solutions provider based in Wysokie Mazowieckie, Poland is looking for a skilled Software Engineer specializing in Cloud and Backend development. The successful candidate will design and develop scalable backend systems, manage databases and cloud-native applications using Google Cloud Platform. Ideal applicants will have experience in Java, Go,...

Revolut is seeking a Mid/Senior Backend Engineer to join our technology team. You will build mobile APIs and microservices, driving scalable systems used by millions of customers worldwide.You will work on critical risk management, fraud detection, and payment processing, while focusing on greenfield development and improving existing systems in a...

A leading business and IT consultancy in Katowice is seeking an experienced Backend or Fullstack developer to join a dedicated team in the German financial industry. The ideal candidate will have at least 6 years of experience, strong backend skills in Java and Spring, and will thrive in an agile environment. You will enjoy a tailor-made benefits package,...

Wiodąca firma fintech w Warszawie zatrudnia programistę Java. Do zadań należy tworzenie skalowalnych aplikacji oraz współpraca w zespołach przy wdrażaniu nowych funkcji. Wymagane to minimum 5-letnie doświadczenie w Javie oraz dobra znajomość Spring Framework i technologii Docker. Oferujemy hybrydowy model pracy (maksymalnie 2 dni w biurze), a...

GFT TECHNOLOGIES SE is looking for a skilled software engineer to join our international team in Kraków. Role involves designing and maintaining high-impact digital platforms, focusing on backend services and APIs.The ideal candidate has extensive experience with Java, Python, and modern software practices, and is comfortable working in Agile teams. Enjoy a...

Comarch poszukuje kandydatów na stanowisko Fullstack Developer (Java 21+ / Angular 22+) w kategorii Full-stack, w Poznań. To świetna propozycja dla osób z doświadczeniem na poziomie mid i znajomością Spring Boot, Angular, TypeScript, MongoDB, PostgreSQL, Java, Docker, Kubernetes, Windows. Aplikuj do i dołącz do zespołu Comarch.

Comarch poszukuje kandydatów na stanowisko Fullstack Developer (Java 21+ / Angular 22+) w kategorii Full-stack, w Łódź. To świetna propozycja dla osób z doświadczeniem na poziomie mid i znajomością Spring Boot, Angular, TypeScript, MongoDB, PostgreSQL, Java, Docker, Kubernetes, Windows. Aplikuj do i dołącz do zespołu Comarch.

Comarch poszukuje kandydatów na stanowisko Fullstack Developer (Java 21+ / Angular 22+) w kategorii Full-stack, w Gdańsk. To świetna propozycja dla osób z doświadczeniem na poziomie mid i znajomością Spring Boot, Angular, TypeScript, MongoDB, PostgreSQL, Java, Docker, Kubernetes, Windows. Aplikuj do i dołącz do zespołu Comarch.

ALTEN Polska poszukuje kandydatów na stanowisko Senior Java Software Engineer w kategorii Architecture/Backend, w Kraków. To świetna propozycja dla osób z doświadczeniem na poziomie senior i znajomością Java, Spring, Spring Boot, Windows. Aplikuj do i dołącz do zespołu ALTEN Polska.

Brown Brothers Harriman in Kraków is seeking a Senior Java Developer to design and build core platforms and microservices within the Capital Partners engineering team. You will work on a full‑stack wealth management application and contribute to modernization efforts in an Agile setting.The role requires 5+ years in Java, Spring, microservices, and strong...

LTM in Kraków, Poland invites an experienced Backend API Developer to join a hybrid team, delivering robust backend services and distributed systems in a fast-paced environment.You will work on Java/Spring Boot applications, leverage Kubernetes and AWS, design APIs with OpenAPI, and implement secure, scalable solutions with CI/CD and TDD principles. The...

ITFS poszukuje doświadczonego Java Backend Developera do pracy zdalnej. Zakres obejmuje tworzenie back-endów w Java 17+ z użyciem Spring/Spring Boot 3.x, pracę z Nasdaq Calypso oraz integracje z systemami messagingowymi i bazami danych.Wymagane jest doświadczenie w testowaniu (JUnit), znajomość zasad bezpiecznego kodowania i język angielski na...

emagine is seeking a Senior Java Developer to enhance backend architectures and deliver high-quality data-driven services across EU remote environments. The role focuses on building scalable backend systems with Kafka and modern microservices patterns.You will contribute to CI/CD pipelines, security, observability, and collaborative guild activities, shaping...

Ness Solution w Warszawie poszukuje Java Backend Developera do rozwoju aplikacji działającej na międzynarodowych rynkach. Idealny kandydat powinien mieć minimum 4-letnie doświadczenie oraz doskonałą znajomość frameworków Spring i systemów kontroli wersji.Wymagana jest również umiejętność diagnozy błędów oraz pisania testów. Praca oferuje...