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 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 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: 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: FullStack Software Engineer role in a global payments platform project within the financial sector, focused on developing and modernizing backend and frontend components in a microservices architecture. The position involves migrating legacy systems to modern solutions and delivering scalable, high-performance services in an Agile/DevOps environment. Work includes building APIs, enhancing automation, and improving system reliability and performance. 🗂️ Requirements: Strong experience with Java 11+ (preferably 17+), Hands-on experience with Kubernetes, Experience with Git and version control workflows, Proficiency in Unix/Linux and CLI tools, Solid knowledge of SQL and Oracle databases, Experience building RESTful APIs and microservices, Frontend experience with JavaScript and React, Experience working in Agile/DevOps environment, English proficiency at B2+ level 📃 Skills: Java, React, JavaScript, Kubernetes, Git, Linux, Unix, SQL, Oracle, REST, Microservices, CI/CD 🏢 Description: 📍 Location: Kraków, Poland (hybrid - 2 days per week in the office) 📄 B2B Contract: 180 - 200 PLN / hour We are looking for a FullStack Software Engineer to join an international project delivered for a large organization within the financial services sector. The team is working on a global payments platform that enables fast and secure fund transfers across multiple channels, including supplier payments, salaries, tax processing, and international transactions. This role focuses on developing and modernizing both backend and frontend components of the platform, contributing to the transition from legacy systems to a modern microservices-based architecture. You will work in an Agile, DevOps-driven environment, supporting scalable and high-performance solutions. Key Responsibilities: Develop and maintain backend and frontend applications using Java (11/17/21) and React Build and support APIs and microservices within a distributed architecture Participate in modernization initiatives, including migration from legacy systems (e.g. mainframe, WebSphere) to microservices-based solutions Collaborate with cross-functional teams to design and deliver new features Improve system performance, scalability, and reliability Contribute to automation initiatives, including test automation and CI/CD improvements Increase Straight-Through-Processing (STP) capabilities of services Work in an Agile / DevOps environment with a focus on continuous delivery Requirements: Strong experience with Java (11+), ideally Java 17+ Hands-on experience with Kubernetes Experience with Git and version control workflows Good command of Unix/Linux environments and CLI tools Solid understanding of SQL and databases (Oracle preferred) Experience in building and integrating RESTful APIs and microservices Frontend knowledge (JavaScript / React preferable) Experience working in Agile / DevOps teams Strong analytical and problem-solving skills Good communication skills and English proficiency (B2+) What We Offer: Long-term cooperation on an enterprise-scale international project Opportunity to work on modernizing large-scale payment systems Real impact on system transformation and engineering practices Private medical care (LuxMed) & Multisport card Collaboration with experienced, international engineering teams 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: Hybrid Front-End / Fullstack Engineer role focused on building and maintaining modern web applications using Angular and Node.js for large-scale, business-critical projects in the financial services domain. The position involves working in an international team within a disciplined, quality-driven engineering environment. Responsibilities include development, code quality assurance, and contribution to CI/CD processes. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Hands-on experience with Angular, Experience with Node.js, Experience with NestJS, Very good knowledge of HTML5, Very good knowledge of CSS3, Very good knowledge of SCSS, Familiarity with CI/CD processes, Solid understanding of front-end best practices 📃 Skills: JavaScript, TypeScript, Angular, Node.js, NestJS, HTML5, CSS3, SCSS, CI/CD 🏢 Description: Front-End / Fullstack Engineer (JavaScript / TypeScript) Hybrid work model – 2 days per week from the office in Kraków We are looking for a Front-End / Fullstack Engineer with strong experience in JavaScript and TypeScript , who is comfortable working across both front-end and back-end technologies. The ideal candidate has hands-on experience with Angular and Node.js and enjoys collaborating with a strong, international team of engineers to build applications for a large-scale, business-critical initiative within the financial services domain. While solid technical foundations are essential, we are primarily looking for passionate engineers who are eager to continuously improve, challenge themselves, and work in a highly disciplined, verifiable, and quality-driven engineering environment . Your Responsibilities Design, develop, and maintain modern web applications using Angular and Node.js Collaborate closely with engineers, product owners, and stakeholders in an international environment Apply best practices in front-end development, ensuring high code quality and maintainability Contribute to CI/CD pipelines and development automation Actively participate in code reviews, technical discussions, and continuous improvement initiatives Core Skills & Requirements Strong experience with JavaScript and TypeScript Solid understanding of front-end best practices Hands-on experience with Angular Experience with Node.js and NestJS Very good knowledge of HTML5, CSS3, SCSS Familiarity with CI/CD processes Ability to work in a structured, disciplined engineering environment Strong communication skills and ability to work in an international team Nice to Have Experience with the ELK stack Experience using Ag-Grid Exposure to Google Cloud Platform or Alibaba Cloud Basic knowledge of or interest in Machine Learning What We Value Passion for clean, maintainable, and verifiable code Willingness to learn and continuously improve technical skills Ownership, accountability, and a proactive engineering mindset Team-oriented attitude and openness to feedback 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/B2B role for an experienced Java Developer to design, develop, and maintain microservices in a financial sector project. The position focuses on building high-quality backend solutions using modern Java and DevOps practices, with strong emphasis on TDD, CI, and system reliability. Hybrid work model with responsibility for both development and platform support. 🗂️ Requirements: 5+ years commercial experience in Java backend development, Experience designing and developing microservices, Proficiency in Java 17/21 and Spring Boot, Strong knowledge of PostgreSQL, Experience setting up and maintaining DevSecOps pipelines, Minimum 3 years working in Agile and/or DevOps teams, Experience with TDD using JUnit, Experience writing integration, regression, and Cucumber tests, Experience working with CI pipelines, Experience in incident resolution and system monitoring 📃 Skills: Java, SpringBoot, PostgreSQL, Microservices, DevSecOps, JUnit, Cucumber, CI, TDD, Agile, DevOps, TypeScript, Angular, HTML5 🏢 Description: For our Client we are looking for an experienced Java Developer who will be responsible for both the development and maintenance of the microservices. 📍 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: Design, build, and maintain efficient, reusable, and reliable Java code Contribute in all phases of the development lifecycle Adopt DevOps and Agile principles Ensure test-driven development and close collaboration with QA team members Focus on improving the development team velocity and quality Mentor and work with junior members of the team Support the platform: incident resolution, monitoring, problem management Develop automated tooling to improve support functions Requirements: 5+ years of commercial experience in backend development (Java) Designing and developing microservices using Java 17/21 and Spring Boot Strong knowledge of PostgreSQL and DevSecOps pipeline set up / maintenance Self-motivated and willing to learn new technologies and business domain 3+ years working in an Agile and/or DevOps team Excellent communication skills Use TDD with JUnit for unit tests, add integration and regression tests, and write simple Cucumber scenarios for end‑to‑end acceptance, all run in CI. Proven track record of working on significant projects from conception to completion, Ability to translate functional requirements into technical solutions, Should be able to provide innovative solutions to complex business problems Fluent English Experience in TypeScript, Angular, HTML 5 - nice to have 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