Python Developer with React

🏢 Summary: B2B Full Stack Engineer role in FinTech focused on building and maintaining secure microservices-based applications using Python and JavaScript in a hybrid model. The position involves developing web services and data pipelines, deploying containerized applications via CI/CD, and ensuring operability through testing and troubleshooting. You will collaborate in an agile, security-driven environment to deliver scalable and compliant software solutions. 🗂️ Requirements: Extensive experience in Python web development with FastAPI, Flask or Django, Experience building data pipelines in Python using Pandas, Numpy and workflow tools, Strong knowledge of microservices architecture and CQRS, SAGA, event sourcing, Experience with containerization using Docker and Kubernetes, Hands-on experience with CI/CD tools such as Jenkins or GitLab, Strong Linux system administration skills, Understanding of TCP/IP, DNS, Firewalls and networking fundamentals, Proficiency with Git and branching strategies, Frontend development experience with HTML, CSS and JavaScript, Strong SQL skills with ability to write complex queries, Experience writing automated unit, integration and functional tests, Experience working in Agile and DevSecOps environments using Jira and Confluence 📃 Skills: Python, FastAPI, Flask, Django, JavaScript, HTML, CSS, React, Pandas, Numpy, Airflow, Luigi, Docker, Kubernetes, Jenkins, GitLab, Linux, Git, SQL, TCP/IP, DNS, Jira, Confluence 🏢 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 anddelivering software solutions that meet stakeholder requirements. Working with Cybersecurity experts in understanding and refining requirements, delivering on featuresiteratively, 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 leadactively identifing bottlenecks and to improve software development efficiencies. Adhering to the team’s governance procedures surrounding requirements intake, release and incidentmanagement, and actively contributing towards further streamlining processes (through automation). Ensuring the operability of existing services, including L2/L3 troubleshooting, bug fixing, and writingautomated 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. 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 threatdetection 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.

🏢 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

🏢 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 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: 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: 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

🏢 Summary: Senior Full Stack Developer role in an international agile team delivering digital solutions for used assets remarketing. The position involves designing, developing, and maintaining scalable and secure backend and frontend applications while contributing to technical decisions and code quality. The role also includes collaboration in a cross-functional environment and mentoring junior developers. 🗂️ Requirements: 5+ years of full stack development experience, Proficiency in Java, JavaScript, and Python, Experience with Spring Boot and Angular, Hands-on experience with REST and SOAP APIs, Experience with Oracle and MongoDB databases, Knowledge of messaging systems such as Kafka or ActiveMQ, Experience with CI/CD tools and build automation, Proficiency with Docker and Kubernetes, Experience working in Agile environments, Fluent English 📃 Skills: Java, JavaScript, Python, SpringBoot, Angular, Oracle, MongoDB, Elasticsearch, SOLR, REST, SOAP, Kafka, ActiveMQ, Maven, Jenkins, GitLabCI, Git, Docker, Kubernetes, Tomcat, Nginx, IntelliJ, Eclipse, VSCode, Jira, Confluence 🏢 Description: Senior Full Stack Developer Location: Warsaw (hybrid 50/50) Experience: 5+ years Language: English (required) Role Overview We are looking for a Senior Full Stack Developer to join an international agile team delivering digital solutions supporting used assets remarketing. The role involves designing, developing, and maintaining scalable and secure applications, working closely with product owners, designers, and other engineers in a cross-functional setup. You will contribute to both backend and frontend development, participate in technical decision-making, review code, and support continuous improvement of existing systems. Responsibilities Design and develop backend services and APIs Build and maintain frontend applications Improve and refactor existing solutions Participate in code reviews and agile ceremonies Collaborate with cross-functional teams Support technical documentation and application maintenance Mentor junior developers when needed Required Tech Stack Languages: Java, JavaScript, Python Frameworks: Spring Boot, Angular Databases: Oracle, MongoDB, Elasticsearch / SOLR APIs: REST, SOAP Messaging: Kafka, ActiveMQ CI/CD & Build: Maven, Jenkins, GitLab CI Version Control: Git Containers & Cloud: Docker, Kubernetes Servers & Tools: Tomcat, Nginx IDEs: IntelliJ IDEA, Eclipse, VS Code Agile & DevOps tools: Jira, Confluence 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: Senior Full Stack Developer role focused on designing, building, and supporting high-performance web applications using React and Java. The position involves end-to-end ownership of features, architectural decision-making, and working within Agile and DevOps environments. The role also includes maintaining reliable, scalable systems in the FX and banking domain. 🗂️ Requirements: Extensive experience in full stack development, Strong expertise in Java, Strong expertise in React, Strong knowledge of HTML, Experience in Agile environments, Experience in DevOps-oriented environments, Experience designing and supporting high-performance web applications, Ability to make architectural decisions, Experience with CI/CD pipelines 📃 Skills: Java, React, HTML, Agile, DevOps, CI/CD, Microservices, PostgreSQL, Linux 🏢 Description: Senior Full Stack Developer We’re looking for a Senior Full Stack Developer to join our team and help shape the next generation of our products. Reporting to the Development Manager, you’ll take real ownership of features and systems, working hands-on across the entire development lifecycle — from early design decisions to production support. This is a hybrid role, with work from our Kraków office 1–2 days per week. What you’ll be doing: Leading the design, development, and evolution of high-performance web applications using React, Java, and HTML. Owning features end-to-end, from requirements and technical design through delivery and production support. Partnering closely with product owners and engineers to define solutions that balance business needs with long-term technical health. Applying deep domain knowledge in FX and banking to build scalable, business-critical functionality. Driving best practices in Agile delivery, DevOps, and CI/CD pipelines. Tackling complex technical challenges and making sound architectural decisions. Supporting and improving live services with a strong focus on reliability, performance, and quality. Actively contributing to sprint planning, code reviews, and technical discussions — and raising the bar for the team. What we’re looking for: Extensive experience as a Full Stack Developer with strong expertise in Java, React and HTML. A solid software engineering background and an engineering-led approach to problem solving. Proven experience working in Agile teams and DevOps-oriented environments. Ability to work independently, make technical decisions, and take full ownership of the systems you build. Excellent communication skills and the confidence to collaborate with both technical and non-technical stakeholders. A proactive mindset — you spot problems early and drive improvements without being asked. Nice to have: Experience with financial platforms or trading systems. Hands-on exposure to microservices architecture, PostgreSQL, and Linux environments. Previous experience mentoring other engineers or influencing technical direction. 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.