June 12, 2026

Fullstack Developer

Senior • Hybrid

Krakow, Poland

Fullstack Developer 

📍 Location: Kraków, Poland (hybrid – 2 days per week in the office)
📄 Contract Type: B2B
🏦 Industry: Financial Services / Payments

About the Project

We are looking for an experienced Fullstack Developer (Java + React) to join an international payments platform operating in a large-scale enterprise environment. The system supports a wide range of financial transactions and payment operations across multiple regions worldwide.

As part of a cross-functional Agile team, you will be involved in both backend and frontend development, contributing to the design and delivery of modern, scalable solutions built on microservices and API-first architecture.

Key Responsibilities

  • Design, develop, and maintain backend applications and microservices using Java.

  • Build and enhance modern web applications using React.

  • Develop and maintain RESTful APIs and microservice-based solutions.

  • Participate in the modernization of existing systems and migration to modern architectures.

  • Write clean, maintainable, and well-tested code following engineering best practices.

  • Contribute to automated testing, CI/CD pipelines, and DevOps initiatives.

  • Collaborate closely with architects, business analysts, product owners, and other development teams.

  • Participate in code reviews and support continuous improvement of development standards.

  • Troubleshoot, optimize, and enhance system performance, reliability, and scalability.

Requirements

  • 5+ years of professional software development experience.

  • Strong hands-on experience with Java 11+ (Java 17 or Java 21 preferred).

  • Solid experience with Spring Framework and Spring Boot.

  • Experience designing and developing REST APIs.

  • Good understanding of microservices architecture.

  • Commercial experience with React and JavaScript/TypeScript.

  • Strong SQL skills and experience working with relational databases (Oracle is a plus).

  • Experience with Git and modern software development practices.

  • Hands-on experience with Kubernetes and containerized environments.

  • Experience working in Agile teams.

  • Understanding of CI/CD processes and collaboration within DevOps environments.

Nice to Have

  • Experience in the financial services, banking, or payments industry.

  • Experience with automated testing frameworks and test automation practices.

  • Exposure to cloud platforms such as AWS, Azure, or GCP.

  • Familiarity with integration patterns and high-availability systems.

What We Offer

  • Opportunity to work on a long-term international project with significant scale and complexity.

  • Exposure to modern technologies, microservices architecture, and cloud-native practices.

  • Real impact on product development and technical solutions.

  • Luxmed private healthcare package.

  • Multisport card.

  • Collaborative engineering culture focused on quality, automation, and continuous improvement.

Why apply for an Antal job offer?

When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process.

About Antal

Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research.

Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

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Krakow, Poland

170 - 220 PLN/hr

🏢 Summary: Full Stack Developer role (Java/React) in a banking environment, focused on building and maintaining web applications supporting financial and FX products. The position involves end-to-end development in Agile/DevOps setup with strong ownership of production systems. Work is delivered in small, cross-functional teams with frequent deployments and close collaboration with business. 🗂️ Requirements: Very good knowledge of React, Very good knowledge of Java, Very good knowledge of HTML, Experience in Agile environment, Experience in DevOps practices and CI/CD, Strong software engineering fundamentals, Ability to design and solve complex technical problems, Very good English (written and spoken) 📃 Skills: Java, React, HTML, CI/CD, Agile, DevOps, PostgreSQL, Linux, Kotlin, Clojure, Python, Rust, Haskell 🏢 Description: Full Stack Developer (Java / React) Forma współpracy: B2B Stawka: 170–220 PLN/h Wymiar pracy: Full time Tryb pracy: Hybrydowy – 2 dni w tygodniu z biura Lokalizacja: Kraków O projekcie Dołączysz do zespołu Digital Technology , który wspiera globalną dywizję CIB w jednej z wiodących instytucji finansowych. Zespół działa jak firma technologiczna wewnątrz banku – stawiamy na szybkie dostarczanie wartości, wysoką jakość, odporność systemów oraz nowoczesne podejście DevOps i Agile. Pracujemy end-to-end: od analizy i developmentu, przez testy, aż po wsparcie produkcyjne. Nie mamy silosów – każdy członek zespołu realnie wpływa na produkt. Zakres obowiązków Projektowanie, rozwój i utrzymanie aplikacji webowych w oparciu o React, Java i HTML Współpraca z Product Ownerami i innymi inżynierami przy zbieraniu wymagań i dostarczaniu rozwiązań wysokiej jakości Implementacja funkcjonalności wspierających produkty bankowe i FX Udział w praktykach Agile i procesach DevOps (CI/CD) Rozwiązywanie złożonych problemów technicznych z wykorzystaniem podejścia inżynierskiego Wsparcie systemów produkcyjnych („you build it, you run it”) Aktywny udział w planowaniu prac, code review i dyskusjach technicznych Komunikacja w języku angielskim (pisemna i ustna) Wymagane umiejętności Bardzo dobra znajomość React, Java i HTML Solidne podstawy inżynierii oprogramowania Doświadczenie w środowisku Agile / DevOps Gotowość do nauki nowych języków i technologii Analityczne podejście do projektowania i rozwiązywania problemów Samodzielność i odpowiedzialność za powierzony zakres Bardzo dobra znajomość języka angielskiego Umiejętność pracy zespołowej i dobre zdolności komunikacyjne Mile widziane Doświadczenie w systemach finansowych lub tradingowych Znajomość FX / bankowości inwestycyjnej Doświadczenie z architekturą mikroserwisową PostgreSQL, Linux Znajomość innych języków (np. Kotlin, Clojure, Python, Rust, Haskell) Jak pracujemy Małe zespoły (4–6 osób), bliska współpraca z biznesem Brak klasycznych sprintów – stawiamy na ciągły przepływ zmian Setki wdrożeń dziennie, szybkie trafianie na produkcję Elastyczne podejście, eksperymentowanie i kultura „learning by doing” Możliwość rotacji między projektami i zespołami Proces rekrutacyjny (1 etap) 30 min – rozmowa o projekcie i sposobie pracy + przedstawienie doświadczenia kandydata 90 min – rozmowa techniczna z LIVE codingiem (własne IDE) Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

Technology

Antal Sp. z o.o.

Full Stack Developer (JavaScript / CSS / Node JS/ basic Java)

Senior

Hybrid

Krakow, Poland

🏢 Summary: Fullstack Developer role in the financial sector focused on delivering end-to-end features across the development lifecycle, including analysis, design, testing, and production support. The position involves iterative delivery of business requirements, backend collaboration, and maintaining a balance between new features and technical debt. Hybrid work model with regular on-site presence in Kraków. 🗂️ Requirements: 5+ years commercial experience as Fullstack Developer, Strong experience with JavaScript, Strong experience with CSS, Experience with NodeJS (client and server), Knowledge of Accessibility standards and implementation, Working knowledge of Unix, Understanding of databases from consumer perspective, Knowledge of HTTP APIs and RESTful services, Basic knowledge of Java or Kotlin, Fluent English 📃 Skills: JavaScript, CSS, NodeJS, Unix, REST, HTTP, Java, Kotlin, Databases, Accessibility 🏢 Description: For our Client we are looking for an experienced Fullstack Developer to participate in all parts of the development life cycle including analysis, testing and production support. 📍 Location : Kraków, hybrid work model – 2 days per week in the office, 3 days remote 🕒 Cooperation model: [Full-time / B2B] 📍 Project for our Client from the financial sector Key Responsibilities: Work within a team of developers with a dedicated product owner Take a business requirement, divide it up into stories and deliver each story iteratively to production Product support is integral to the role Identify areas of technical debt, ensure a healthy balance of tech debt and new functionality is prioritised and worked on For new items you need to design the solution and ensure that it follows technology guidelines and constraints Pairing with other members of the team Willing to work also with backend Requirements: 5+ years of commercial experience in similar position Demonstratable experience of JavaScript, CSS & Node JS (client & server) Awareness of best Accessibility practices and knowledge how to implement them Working knowledge of unix Must understand databases from a consumer point of view Knowledge of HTTP APIs e.g. RESTful APIs Basic Java or Kotlin knowledge Nice to have UX knowledge and ability to propose improvements to business requirements Fluent English Benefits: Private medical care (Luxmed) Multisport card Collaborative team culture and modern tech stack Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

Technology

Antal Sp. z o.o.

Full Stack Developer (Java, React)

Mid

Hybrid

Krakow, Poland

30,000 - 38,000 PLN/hr

🏢 Summary: Full Stack Developer role in a hybrid model focused on building and maintaining modern web applications using Java and React. The position involves full software development lifecycle participation, including design, development, CI/CD, and production support in an Agile/DevOps environment. The offer provides engagement in impactful digital and financial platforms within cross-functional teams. 🗂️ Requirements: Strong proficiency in Java, Strong proficiency in React, Strong proficiency in HTML, Experience in Agile environments, Experience in DevOps practices and CI/CD, Solid software engineering fundamentals, Ability to participate in full software development lifecycle, Fluent English, Availability to work hybrid in Kraków (2 days per week in office) 📃 Skills: Java, React, HTML, CI/CD, Agile, DevOps, Microservices, PostgreSQL, Linux, Clojure, Kotlin, Python, Rust 🏢 Description: Location: Kraków (hybrid - 2 days per week in the office) Contract Type: B2B / Contract Working Time: Full-time Rate: 180–230 PLN/h About the Role We are looking for a Full Stack Developer to join a dynamic digital technology team. You will be part of a collaborative, fast-paced environment, participating in the full software development lifecycle: design, development, testing, deployment, and production support. You will work closely with product owners and cross-functional teams, building robust web applications, modern tools for business users, and next-generation digital platforms. This is a great opportunity to work on impactful projects across the organization while continuously learning new technologies. Responsibilities Design, develop, and maintain web applications using Java, React, and HTML. Collaborate with product owners and engineers to gather requirements and deliver high-quality solutions. Contribute to Agile and DevOps practices, including CI/CD pipelines and production support. Implement features leveraging domain knowledge in financial services or related products. Participate in code reviews, technical discussions, and sprint planning. Apply analytical and engineering principles to solve complex problems efficiently. Support applications and related services, ensuring reliability and performance. Communicate effectively in English, both verbally and in writing. Requirements Strong proficiency in Java, React, and HTML. Solid software engineering fundamentals and problem-solving skills. Experience in Agile and DevOps environments. Willingness to learn new programming languages and technologies. Excellent communication and teamwork skills. Self-motivated, proactive, and able to take ownership of assigned tasks. Fluent in English. Nice-to-Have Experience with financial platforms, trading systems, or banking products. Exposure to microservices architecture, PostgreSQL, or Linux environments. Knowledge of other languages such as Clojure, Kotlin, Python, Rust. Why Join Work on innovative digital platforms used by teams across the organization. Participate in full software lifecycle, including design, development, and production support. Collaborate with highly skilled, cross-functional teams in a hybrid work environment. Access to modern technologies and continuous learning opportunities. Real impact on business-critical systems and end-user solutions. Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.