Praca senior java engineer pow. Warszawa, Mazowieckie

Poszukujemy osoby doświadczonej w roli Senior Java Developer (7y) / Software Engineer , która dołączy do zespołów realizujących nowoczesne, skalowalne rozwiązania. Zakres obowiązków Projektowanie, architektura oraz wdrażanie nowoczesnych rozwiązań backendowych Dobór i implementacja narzędzi, frameworków oraz wzorców architektonicznych Budowanie skalowalnych i niezawodnych systemów rozproszonych...

Company Description SmartRecruiters transforms hiring for the world’s leading enterprises. We deliver an AI-powered hiring platform built for global scale, automating and optimizing the entire talent acquisition process. More than 4,000 companies, including LinkedIn, McDonald's, VISA, CD Projekt Red, Allegro rely on SmartRecruiters to build winning teams. In 2025, SmartRecruiters joined SAP, the...

Wspólnie z naszym Partnerem, krajowym liderem w branży e-commerce , poszukujemy osoby na stanowisko Senior Platform Software Engineer (Java/Kotlin) . Dołączysz do zespołu odpowiedzialnego za rozwój platformy Azure, która napędza kluczowe produkty z obszaru fintech. Będziesz odpowiedzialny/a za rozwój i utrzymanie narzędzi deweloperskich, optymalizację działania aplikacji na Kubernetes oraz...

Position: Senior Java Software Engineer Salary: up to 26 000 PLN Form of employment: contract of employment Join our client, which makes software to help users organize data, discover the truth, and act on it. Their SaaS product manages large volumes of data and quickly identifies key issues during litigation and internal investigations. The AI-powered communication surveillance product...

W ITLT pomagamy naszym zaprzyjaźnionym firmom przekształcać ambitne pomysły w cyfrową rzeczywistość. Z nastawieniem na wyzwania, ciekawość technologii i zwinność - współtworzymy wyjątkowe rozwiązania IT i zapewniamy najlepszych specjalistów - którzy pomagają przyspieszyć cyfrową transformację. Aktualnie poszukujemy kandydatów na stanowisko: Senior Java QA Automation Engineer (Backend / API)...

Join the Java Engineering Team at a top N. American Bank This isn’t just another dev role. It’s your chance to engineer the core of global trading. We’re talking ultra-low-latency architectures, real-time market data, and automation at scale — all in an environment where milliseconds matter and billions move. You’ll work on greenfield and semi-greenfield projects, building dealer-side workflows...

Wspólnie z naszym Partnerem, krajowym liderem w branży e-commerce, poszukujemy osoby na stanowisko Senior Platform Software Engineer (Java/Kotlin). Dołączysz do zespołu odpowiedzialnego za rozwój platformy Azure, która napędza kluczowe produkty z obszaru fintech. Będziesz odpowiedzialny/a za rozwój i utrzymanie narzędzi deweloperskich, optymalizację działania aplikacji na Kubernetes oraz...

A global payments technology leader is seeking a Senior Software Engineer in Warsaw to design, build, and maintain scalable API services. Candidates should be experienced in backend development using Java, RESTful APIs, and CI/CD practices. The role involves working with cross-functional teams, ensuring code quality, and mentoring junior staff. This hybrid position offers the chance to make a...

A software development company in Warsaw is seeking a Senior Software Engineer to enhance and build core platform features. The ideal candidate will have extensive experience with Java 17 and Kotlin, and a strong background in microservices architecture. This full-time role involves taking ownership of the product throughout the development lifecycle, producing clean code, and mentoring junior...

A global entertainment company is seeking a Senior Engineer in Warsaw. You will lead backend initiatives, drive platform integrations, and mentor junior engineers while working with cutting-edge technologies. Ideal candidates will have strong expertise in server-side Java and a commitment to quality. Experience with frontend technologies and data modeling is a plus. Join a diverse team dedicated...

Offer summary Position: Senior Software Engineer (Java, Typescript, AWS) Employment type: permanent contract of employment or b2b contract (after 3-month trial period) Salary gross (CoE): 18 000 – 25 000 PLN Salary net (B2B): 20 000 – 29 000 PLN Possible work locations: remote or from our office in WeWork Mennica Tower (ul. Prosta 20, Warszawa – city centre) HL Tech size: 65 people in Poland –...

About TPConnects TPConnects is a leading travel technology company revolutionizing airline retailing and distribution. As an IATA-certified technology provider, we empower airlines and travel agencies with cutting-edge New Distribution Capability (NDC), enabling seamless booking experiences and dynamic personalization. Our innovative platform bridges the gap between airlines, travel sellers, and...

Forma współpracy: B2B Stawka: do 160 PLN/h netto VAT Start: 1 kwietnia 2026 Lokalizacja: Gdańsk / Gdynia / Warszawa - 3 dni pracy z biura/ 2 zdalnie Język projektu: angielski (płynny) Opis roli Poszukujemy doświadczonego Senior Performance Engineera, który będzie odpowiedzialny za poprawę wydajności i skalowalności aplikacji opartych o Java i WebLogic. Rola koncentruje się na testach...

Join the Java Engineering Team at a top N. American Bank This isn’t just another dev role. It’s your chance to engineer the core of global trading. We’re talking ultra-low-latency architectures, real-time market data, and automation at scale — all in an environment where milliseconds matter and billions move. You’ll work on greenfield and semi-greenfield projects, building dealer-side workflows...

We are seeking a highly skilled Senior Full-Stack Engineer to join a Capacity Management and Engineering team. This is an exceptional opportunity to play a key role in optimizing the infrastructure for a leading global technology company, working directly alongside their core engineering staff. About the project: The Capacity Management and Engineering Team's mission is to use an...

Our Client is one of the most recognizable e-commerce companies in Poland, developing an advanced technology platform in the Azure cloud and operating at a very large traffic scale. The project focuses on building and evolving a platform that supports key products, including payment and insurance services. We are looking for an experienced Senior Platform Engineer (Java/Kotlin) who will design...

A leading entertainment service provider is seeking a Senior Engineer for the Java Platform Team in Warsaw, Poland. In this role, you will architect the 'Zero Toil' system, design robust integration frameworks, and champion automation for a seamless developer experience. Ideal candidates will have expertise in the Java ecosystem, strong communication skills, and a commitment to building inclusive...

Join the Java Engineering Team at a top N. American Bank Are you a Java engineer who enjoys working on large scale and high performance software? Do you love working with smart people on meaningful technology? Want to work in capital markets on financial trading systems? If so, read on. The Role at a Glance - Senior Java Backend Engineer - Fully remote for a top N. American bank (for residents...

Join the Java Engineering Team at a top N. American Bank Are you a Java engineer who enjoys working on large scale and high performance software? Do you love working with smart people on meaningful technology? Want to work in capital markets on financial trading systems? If so, read on. The Role at a Glance Senior Java Backend Engineer Fully remote for a top N. American bank (for residents of...

Company Description Visa’s Technology Organization is a community of problem solvers and innovators reshaping the future of commerce. We operate the world’s most sophisticated processing networks capable of handling more than 65k secure transactions a second across 80M merchants, 15k Financial Institutions, and billions of everyday people. While working with us you’ll get to work on complex...