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

🏢 Summary: Fullstack Developer role in the financial sector, responsible for designing and developing scalable Java-based applications across the full SDLC. The position involves backend and frontend development, UI improvements, DevOps activities, and production support in a hybrid work model. The role also includes architecture participation, database optimization, and service lifecycle management. 🗂️ Requirements: 5+ years of experience in Java production application development, Experience in frontend development (React preferred), Proficiency in Java and WebAPI development, Experience in building and maintaining scalable backend services, Strong database design and SQL skills, Hands-on experience with PostgreSQL and advanced T-SQL, Experience with CI/CD and DevOps practices, Experience across full SDLC, Fluent English 📃 Skills: Java, React, WebAPI, PostgreSQL, SQL, T-SQL, CI, CD, DevOps, SDLC 🏢 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: Participating in software architecture design Leading UI changes and improvements to increase overall UX and application stability Implementing solutions according to best Design Patterns Analyze requirements to fully understand solutions and recommend improvements Create comprehensive and clear documentation for developed solutions Develop and work on application prototypes to validate concepts and designs Management of Changes through the Service management lifecycle Active involvement in Automation and improvement of Service Management lifecycle Provide exceptional customer support by addressing and resolving issues promptly Communicate effectively with customers to understand their needs and provide appropriate solutions Requirements: 5+ professional experience in production applications development in Java including front-end development (preferably React) with a strong ability to troubleshoot, resolve, and prevent issues in a high-pressure environment Proficiency in Java and Web API development, with a solid understanding of building and maintaining scalable, secure, and efficient backend services Expertise in database design and SQL skills, particularly with PostgreSQL including advanced T-SQL scripting, query optimization, and performance tuning Comprehensive experience in a DevOps activities like continuous integration, continuous delivery Experience with the Software Development Life Cycle (SDLC), including requirements gathering, design, development, testing, deployment, and maintenance 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

🏢 Summary: Full-time contract role for an experienced FullStack Developer to build and maintain scalable, AI-driven financial applications in a global Agile team. The position covers the full software development lifecycle, including design, development, testing, deployment, and production support in a "you build it, you support it" model. Work is hybrid-based in Kraków with strong ownership and continuous delivery practices. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong knowledge of Java, Strong knowledge of Python, Hands-on experience with Spring Framework, Understanding of SOLID principles, Understanding of Clean Code principles, Understanding of DDD, Understanding of BDD, Experience with SQL databases, Experience with NoSQL databases, Familiarity with microservices architecture, Experience with event-driven systems or streaming technologies, English proficiency (written and spoken) 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, Streaming, SOLID, DDD, BDD, CleanCode, JavaScript, Vue.js, AI, MachineLearning, NLP, DataScience, LangChain, LangGraph 🏢 Description: FullStack Developer 📍 Kraków, Poland (hybrid – min. 2 days/week in the office) 🕒 Full-time | Contract role About the Role We are looking for an experienced FullStack Developer to join a global technology team delivering innovative digital solutions in the financial domain. In this role, you will work closely with a Development Manager and a small, cross-functional team to build and maintain scalable applications. You will be involved in the entire software development lifecycle – from analysis and design to deployment and production support. This is a hands-on role in a collaborative environment where teams take full ownership: “you build it, you support it.” Your Responsibilities Work in a small Agile team (4–6 people) with a dedicated Product Owner Translate business requirements into user stories and deliver them iteratively to production Design and implement high-quality, scalable solutions aligned with technical standards Participate in all stages of the development lifecycle, including testing and production support Identify and manage technical debt, balancing it with new feature development Collaborate closely with team members through pairing and knowledge sharing Contribute to a culture of continuous improvement and experimentation Required Skills & Experience Minimum 5 years of professional software development experience Strong knowledge of Java and Python Hands-on experience with Spring Framework Solid understanding of software engineering principles ( SOLID, Clean Code, DDD, BDD ) Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) Familiarity with microservices architecture Experience with event-driven systems / streaming technologies Strong communication skills in English (written and spoken) Ability to collaborate, mentor, and support other engineers Nice to Have Experience with JavaScript (Vue.js) Background in AI / Machine Learning / NLP / Data Science Knowledge of: Prompt Engineering LangChain / LangGraph Clean Architecture What You Can Expect Work in a globally distributed engineering organization Small, self-organizing teams with strong ownership Continuous delivery approach (no traditional sprints – focus on flow and frequent releases) Opportunity to work on cutting-edge AI-driven solutions Exposure to modern technologies and experimentation with new tools A collaborative culture where learning, pairing, and knowledge sharing are encouraged Benefits: Multisport Card and Luxmed Who We’re Looking For We value engineers who: Are curious, adaptable, and open to experimentation Enjoy solving complex problems with technology Take ownership and responsibility for their work Are comfortable stepping outside their specialization when needed See failure as a learning opportunity 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.

🏢 Summary: Fullstack Developer role focused on building and maintaining modern applications using Java 21 and Angular 16+ in a microservices architecture. The position involves developing new features and enhancing existing systems, including design, testing, and maintenance of RESTful APIs in a cloud-based environment. Hybrid work model with B2B contract. 🗂️ Requirements: Minimum 4 years of experience in a similar role, Proficiency in Java 21, Experience with Spring and Spring Boot, Experience with Angular 16+, Experience in RESTful API development, Experience with microservices architecture, Experience with Git version control, English proficiency at minimum B2 level 📃 Skills: Java, Spring, SpringBoot, Angular, REST, Microservices, Git, API 🏢 Description: Fullstack Developer (Java, Angular) Location: Hybrid/Wrocław (3 days per week in the office) Full-time Contract B2B We are currently seeking an experienced Fullstack Developer (Angular, Java) on behalf of our client. T he Software Developer will work within a Development team and may be involved in the development of new products and maintenance of existing products including the design, installation, testing and maintenance of software systems Required Qualifications: Minimum 4 years of experience in a similar position Strong proficiency in Java programming language ( 21 version) Extensive experience with Spring & Spring Boot framework Solid understanding of Angular for front-end development ( 16 version and higher) Proficient in RESTful API design and development. Microservices Experience with version control systems, preferably Git Fluency in English both written and verbal (minimum B2 level) What We Offer: Collaboration in an international environment Opportunity to work on large-scale, cloud-based, modern projects Full support and knowledge-sharing within an experienced team Opportunities to grow your technical skills and work on innovative initiatives Competitive B2B contract remuneration 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

🏢 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.

🏢 Summary: Contract B2B role for a Fullstack Developer with strong backend focus (Java/Kotlin, PostgreSQL) or Backend Developer willing to grow in frontend. Work in a small agile team delivering and maintaining applications, designing new features, and supporting production systems. Hybrid work model with regular on-site presence in Kraków. 🗂️ Requirements: Very good knowledge of Java, Very good knowledge of Kotlin, Experience with databases and SQL, Practical knowledge of Git, Knowledge of Unix systems, Understanding of HTTP APIs and REST, Willingness to work with multiple programming languages 📃 Skills: Java, Kotlin, SQL, PostgreSQL, Git, Unix, HTTP, REST, JavaScript, React 🏢 Description: Ze względu na aktualne potrzeby projektowe klienta poszukujemy doświadczonego Fullstack Developera z wyraźnym nastawieniem na backend (Java/Kotlin, PostgreSQL) lub Backend Developera z gotowością do rozwijania kompetencji w obszarze frontendu . Lokalizacja: Kraków Tryb pracy: hybrydowy, 2 x w tyg. praca w biurze Forma zatrudnienia: contract, B2B Zakres obowiązków: Praca w zespole liczącym od 4 do 6 osób, z przypisanym Product Ownerem (zespoły zazwyczaj działają w jednej lokalizacji, choć mogą być rozproszone geograficznie) Analiza wymagań biznesowych, dzielenie ich na mniejsze zadania (stories) oraz ich iteracyjne wdrażanie na produkcję Aktywne uczestnictwo w utrzymaniu i wsparciu aplikacji – obowiązuje zasada: „zespół, który tworzy, odpowiada również za wsparcie” Identyfikowanie obszarów długu technologicznego oraz dbanie o właściwą równowagę pomiędzy jego redukcją a rozwojem nowych funkcjonalności Projektowanie rozwiązań dla nowych funkcji zgodnie z obowiązującymi standardami technologicznymi i ograniczeniami Ścisła współpraca z innymi członkami zespołu, w tym programowanie w parach (pair programming) Wymagania: Otwartość na naukę i pracę z wieloma językami programowania Praktyczna znajomość systemów Unix Zrozumienie baz danych z perspektywy użytkownika/klienta Wiedza z zakresu komunikacji poprzez HTTP API, w szczególności REST Must have: Bardzo dobra znajomość Java, Kotlin Doświadczenie w pracy z bazami danych i SQL Praktyczna znajomość systemu kontroli wersji Git Nice to have / Optional: Znajomość JavaScript lub React Oferujemy / Benefity: Prywatną opiekę medyczną Kartę Multisport lub dostęp do systemu MyBenefit Ubezpieczenie na życie 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.

🏢 Summary: Fullstack Developer role in the financial services domain, focused on building and modernizing a large-scale international payments platform using Java and React. The position involves developing microservices and REST APIs, enhancing modern web applications, and contributing to cloud-native, scalable solutions within an Agile environment. You will work across backend and frontend, supporting CI/CD, DevOps initiatives, and system performance optimization. 🗂️ Requirements: 5+ years of professional software development experience, Strong hands-on experience with Java 11+, Experience with Spring Framework and Spring Boot, Experience designing and developing REST APIs, Understanding of microservices architecture, Commercial experience with React, Experience with JavaScript or TypeScript, Strong SQL skills, Experience with relational databases, Experience with Git, Hands-on experience with Kubernetes, Experience working in Agile teams, Understanding of CI/CD processes, Experience working in DevOps environments 📃 Skills: Java, Spring, SpringBoot, React, JavaScript, TypeScript, SQL, Oracle, Git, Kubernetes, REST, Microservices, CI/CD, DevOps, AWS, Azure, GCP 🏢 Description: 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.

🏢 Summary: Fullstack Developer role (Java + React) in a large-scale international payments platform, focused on building and modernizing microservices and API-driven systems in an enterprise environment. The position involves both backend and frontend development within Agile teams, contributing to scalable, cloud-ready solutions. 🗂️ Requirements: 5+ years of professional software development experience, Strong experience with Java 11+, Proficiency in Spring Framework and Spring Boot, Experience designing and developing REST APIs, Understanding of microservices architecture, Commercial experience with React, Experience with JavaScript or TypeScript, Strong SQL skills, Experience with relational databases, Experience with Git, Hands-on experience with Kubernetes, Experience working in Agile teams, Understanding of CI/CD processes, Experience in DevOps environments 📃 Skills: Java, Spring, SpringBoot, React, JavaScript, TypeScript, SQL, Oracle, Git, Kubernetes, REST, Microservices, CI/CD, DevOps, AWS, Azure, GCP 🏢 Description: 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.

🏢 Summary: B2B Fullstack Developer (Java + React) role in a large-scale international payments platform, working in a hybrid model in Kraków. The position involves building and modernizing microservices-based and API-first solutions within an Agile team. You will contribute to backend and frontend development, CI/CD, and cloud-native initiatives in a complex enterprise environment. 🗂️ Requirements: 5+ years of professional software development experience, Strong experience with Java 11+, Hands-on experience with Spring Framework and Spring Boot, Experience designing and developing REST APIs, Understanding of microservices architecture, Commercial experience with React, Experience with JavaScript or TypeScript, Strong SQL skills, Experience with relational databases, Experience with Git, Hands-on experience with Kubernetes, Experience working in Agile teams, Understanding of CI/CD processes, Experience in DevOps environments 📃 Skills: Java, Spring, SpringBoot, React, JavaScript, TypeScript, SQL, Oracle, Git, Kubernetes, REST, Microservices, CI/CD, DevOps 🏢 Description: 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.

🏢 Summary: Full-Stack Developer role focused on building and maintaining backend services in Python (FastAPI) and frontend applications in React.js within an enterprise environment. The position involves developing REST APIs, managing databases, containerizing applications, and deploying to AWS using modern DevOps practices. Hybrid work model with collaboration on scalable, production-grade systems. 🗂️ Requirements: Commercial experience with Python, Experience with FastAPI, Hands-on experience with React.js, Strong knowledge of SQL databases, Strong knowledge of NoSQL databases, Experience with Docker, Experience with Kubernetes, Basic knowledge of AWS, Experience designing and developing REST APIs 📃 Skills: Python, FastAPI, React, SQL, NoSQL, PostgreSQL, Redis, PGVector, Docker, Kubernetes, AWS, REST, CI/CD 🏢 Description: Full-Stack Developer (Python / React) Location: Kraków, Poland Work Model: Hybrid (6 days per month in the office) About the Role We are looking for an experienced Full-Stack Developer to join our enterprise team and support the development and maintenance of modern backend and frontend applications. You will work with a cutting-edge technology stack in an international environment. Key Responsibilities Design, develop, and maintain backend services using Python (FastAPI) Build and enhance frontend components using React.js Design and develop REST APIs Work with SQL and NoSQL databases (PostgreSQL, Redis, PGVector) Containerize applications and manage deployments using Docker and Kubernetes Deploy and maintain applications in AWS Participate in CI/CD processes and automated testing Collaborate with the team on new features and system integrations (Optional) Contribute to GenAI initiatives (LangChain, OpenAI API) Requirements Proven commercial experience with Python and FastAPI Hands-on experience with React.js Strong knowledge of SQL and NoSQL databases Experience working with Docker and Kubernetes Basic knowledge of AWS Nice to Have Experience or interest in GenAI / LLM technologies Familiarity with CI/CD pipelines and automated testing What We Offer Benefits package including Multisport card and private healthcare Hybrid work model with flexible working hours Opportunity to work in an international environment with a 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.

🏢 Summary: Full Stack Engineer role focused on designing, developing, and maintaining secure microservices-based solutions in a FinTech environment, using Python and modern frontend technologies. The position involves building data pipelines, deploying containerized services through CI/CD, and ensuring system reliability and security in a regulated setting. Hybrid work model with strong emphasis on DevSecOps and automation. 🗂️ Requirements: Extensive experience in Python web development (FastAPI, Flask or Django), Experience building data pipelines in Python (Pandas, Numpy, Airflow or Luigi), Strong knowledge of microservices architecture and CQRS, SAGA, event sourcing, Experience with Docker and Kubernetes, Experience with CI/CD tools (Jenkins or GitLab), Strong Linux system administration skills, Understanding of networking concepts (TCP/IP, DNS, Firewalls, Subnetting), Proficiency with Git and branching strategies, Frontend development experience (HTML, CSS, JavaScript), Strong SQL skills with complex queries, Experience writing automated tests (unit, integration, functional), Experience working in Agile and DevSecOps environments 📃 Skills: Python, FastAPI, Flask, Django, Pandas, Numpy, Airflow, Luigi, Docker, Kubernetes, Jenkins, GitLab, Linux, TCP/IP, DNS, Git, HTML, CSS, JavaScript, SQL, React, Kafka, RabbitMQ, Terraform, AWS, GCP, Azure, Prometheus, MongoDB, PostgreSQL, MSSQL 🏢 Description: FullStack Engineer (Python, JavaScript, React) Location: Kraków (hybrid model – 2 days per week from the office) Industry: FinTech Contract type: B2B About the Role As a Full Stack Engineer, your responsibilities will include the following: Working with and support your pod’s Product Owner and Development Lead in designing, developing and delivering software solutions that meet stakeholder requirements. Working with Cybersecurity experts in understanding and refining requirements, delivering on features iteratively, whilst also proposing new technologies and solutions to help keep the bank secure. Adhering to the team’s design and development patterns, and in collaboration with the development lead actively identifing bottlenecks and to improve software development efficiencies. Adhering to the team’s governance procedures surrounding requirements intake, release and incident management, and actively contributing towards further streamlining processes (through automation). Ensuring the operability of existing services, including L2/L3 troubleshooting, bug fixing, and writing automated test cases and any further technical documentation needed to support delivered code. Undertaking peer reviews and leading by example for junior developers in the team. Requirements Able to demonstrate extensive Python web development experience, using frameworks such as FastAPI (being the preference), Flask and/or Django. Experience developing data pipelines, primarily in Python, using libraries such as Pandas, Numpy, and tools such as Airflow, Luigi, etc. A strong understanding of microservice architectures and be knowledgeable on the implementation of concepts such as CQRS, SAGA and event sourcing. Experience building and deploying services to containers, using tools such as Docker and Kubernetes. Experience building and deploying services through CICD pipelines, with hands-on experience using tools such as Jenkins, Gitlab, etc. Strong sysadmin skills in Linux, coupled with a solid understanding of computer systems and networks in general, e.g. TCP/IP, DNS, Firewalls, Subnetting, etc. Proficient with Git and a working familiarity of several branching strategies such as GitFlow, Trunk based, etc. Good understanding and reasonable experience in frontend development, at a minimum using languages such as HTML, CSS, JavaScript. Strong SQL programming skills and be able to construct complex queries. Demonstrate a test-driven mindset, backed by experience developing automated tests cases, be it unit, integration, functional and non-functional tests. Good knowledge of agile and DevSecOps delivery processes within the context of working in a highly regulated environment and be comfortable using tools such as Jira and Confluence. Articulate, with very good verbal and written communication skills. This is essential as you’ll be part of a global team consisting of engineers and non-engineers alike. Able to demonstrate an ability to work and lead in a fast paced, team focused environment with a proven track record of delivering and completing assigned tasks as an individual, and as a team. Demonstrate a willingness to continuously learn and share learnings with others. Our architecture is constantly evolving in line with new technologies being introduced as well as emerging threats. Nice to Have Cybersecurity related experience would be highly advantageous, be it working with automated application security testing tools (e.g. SAST, DAST), performing Penetration Tests, Fuzz testing and/or any threat detection and exploitation techniques. Strong experience building, deploying and operating infrastructure to a major cloud platform, such as AWS, GCP, Azure and/or Ali, using tools such as Terraform to provision and manage infrastructure as code, operational monitoring tools such as Prometheus, and service mesh tools such as Anthos. Strong frontend development experience, preferably in a JavaScript based language/framework such as React. In addition, experience developing and/or integrating with customer analytics products such as Matomo, and any further design and/or UX experience would be highly advantageous. Strong database administration / architecture experience, working with several relational database systems such as MSSQL, Postgres, as well as non-relational such as Mongo. Coupled to this, you will also have experience managing databases in a loosely coupled environment, with very strong performance and tuning skills. Experience working with Message Queue systems, such as Kafka, Rabbit, etc. What’s Offered Hybrid work model with flexibility Private medical care Multisport card Flexible working hours Opportunity to build a high-impact platform used across a global organization 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