Full-stack Developer (Java, Angular/React)

🏢 Summary: B2B contract role for a Front-End Developer in a financial project focused on building and maintaining modern Angular applications consuming REST APIs. The position involves developing user-friendly solutions, integrating with data processing systems, and collaborating within an international team. Hybrid work model with strong emphasis on code quality and application optimization. 🗂️ Requirements: Experience with Angular Framework, Strong knowledge of TypeScript, Strong knowledge of JavaScript, Experience working with REST APIs, Expertise in Hadoop, Expertise in MapReduce, Ability to analyze and debug applications, Experience in data processing, Ability to optimize and reuse existing code, Experience working in software development teams 📃 Skills: Angular, TypeScript, JavaScript, REST, Hadoop, MapReduce 🏢 Description: Salary: 600-900 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on developing and maintaining modern front-end applications that consume REST APIs, supporting business processes and delivering user-friendly solutions for financial stakeholders. Responsibilities you'll have Designing, creating and maintaining front-end applications to consume REST APIs Writing code in accordance with application requirements Working as a member of a software development team to ensure high-quality standards Explaining complex technical topics in a clear, simple way for non-technical audiences Debugging and troubleshooting applications Making suggestions for enhancements to application procedures and infrastructure Collaborating effectively across teams and contributing to a positive work environment Building strong relationships and maintaining trust with team members and business stakeholders Expected competences and knowledge Experience with Angular Framework Strong TypeScript and JavaScript knowledge Expertise in Hadoop and MapReduce Strong communication skills Team player mindset with proven collaboration skills Ability to analyze and debug applications effectively Experience in working with REST APIs and data processing Capability to reuse and optimize existing code Proactive approach to improving processes and solutions Technologies you'll work with Angular Framework TypeScript JavaScript REST API Hadoop MapReduce Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior Fullstack Developer role focused on building and evolving a banking web application (Economic Profitability Calculator) using .NET and Angular. The position involves designing and implementing business processes, integrations, and frontend-heavy features while contributing to architectural decisions. You will work in an Agile team, ensuring high code quality and maintaining CI/CD pipelines. 🗂️ Requirements: 6+ years commercial software development experience, 4+ years experience with .NET and C# web development, 4+ years experience with Angular, Strong knowledge of SQL, Practical experience with Docker, Experience with CI/CD pipelines and automation, Experience working in Agile environment, English proficiency minimum B2 📃 Skills: .NET, C#, Angular, TypeScript, SQL, MSSQL, Dapper, Docker, Kubernetes, Kafka, Git, Jira, Bamboo, Confluence, Bitbucket 🏢 Description: Salary: 900 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk (at least 2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project We are looking for a Senior Fullstack Developer to join our client’s team working on the Economic Profitability Calculator (EPC) — a web application used in the banking domain. As part of the EPC team, you will collaborate closely with business experts and have a real impact on the product by contributing to both frontend and backend development, as well as solution design. Responsibilities you'll have Implementing EPC business processes and integrations with other banking systems Contributing to solution design and technical decisions Designing and developing application features with a strong focus on frontend Ensuring high code quality through test automation, code reviews, and pair programming Working in an Agile setup Cooperating closely with the Product Owner and Subject Matter Experts Maintaining and extending CI/CD pipelines and automation Expected competences and knowledge 6+ years of commercial experience in software development 4+ years of experience in .NET (C#) web development 4+ years of experience with Angular Strong knowledge of SQL Practical experience with Docker Good communication skills, including communication in English (min. B2 level) Nice to have Experience with Kubernetes (K8s) Experience with Kafka or other messaging systems Experience with CI/CD tools (e.g. Bamboo) Experience with AI coding assistants Experience with UI test automation Technologies you'll work with Backend: .NET 10 / C# Frontend: Angular 21, TypeScript Infrastructure: Docker, Kubernetes Database: MS SQL Server, Dapper Messaging: Kafka Tooling: Git, Jira, Bamboo, Confluence, Bitbucket Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Full Stack Developer role in the payment domain focused on building and scaling high-performance, distributed financial applications using Java and Angular. The position involves developing robust backend services, REST APIs, and modern frontend solutions, with strong emphasis on reactive programming, automated testing, and CI/CD practices. The project operates in an international environment with hybrid work model. 🗂️ Requirements: Minimum 5 years of experience as Full Stack Developer, Strong experience with Java, Strong experience with Spring Boot, Experience with reactive programming (e.g. RxJava), Solid knowledge of Angular or AngularJS, Experience with TypeScript, Experience in REST API development, Hands-on experience with unit testing, Experience with test automation frameworks (e.g. Cucumber), Experience with build tools and CI/CD pipelines 📃 Skills: Java, SpringBoot, Angular, AngularJS, TypeScript, RxJava, REST, Cucumber, CI/CD, UnitTesting, ReactiveProgramming 🏢 Description: Salary: 1000 - 1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a dynamic project within the payment domain, focused on building and scaling modern, high-performance financial applications. The team works on developing robust, distributed systems with an emphasis on reliability, scalability, and seamless user experience. Responsibilities you'll have Design, develop, and maintain full stack applications using Java and Angular Build and enhance backend services using Spring Boot and reactive programming (e.g. RxJava) Create and maintain RESTful APIs for seamless system integration Actively participate in application testing to prevent QA bottlenecks during high delivery periods Contribute to automated testing using unit tests and frameworks such as Cucumber Collaborate closely with cross-functional teams to improve performance and delivery flow Work with build tools and CI/CD pipelines to streamline development processes Expected competences and knowledge Minimum 5 years of experience as a Full Stack Developer Strong experience with Java and Spring Boot Experience with reactive programming approaches and libraries (e.g. RxJava) Solid knowledge of Angular/AngularJS and TypeScript Experience in REST API development Hands-on experience with unit testing and test automation Familiarity with automation frameworks (e.g. Cucumber) Strong problem-solving skills and engineering mindset Excellent communication skills and ability to work in a team Experience in the payment domain is a plus Technologies you'll work with Java, Spring Boot Angular / AngularJS, TypeScript RxJava (or similar reactive libraries) REST APIs Cucumber and test automation tools Build tools and CI/CD solutions Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Backend Java Developer role in a financial project modernizing corporate digital banking and building a new online banking platform. The position focuses on developing APIs and backend services within microservice and monolithic architectures using DDD and reactive programming. Work involves delivering scalable, resilient banking solutions in an Agile international environment. 🗂️ Requirements: 6+ years of commercial experience in Java development, Experience building REST APIs, Experience with microservices architecture, Practical knowledge of Spring and Hibernate, Strong SQL knowledge, Experience with reactive programming, Understanding of distributed systems, Knowledge of SOLID principles and design patterns, Understanding of DDD and Port-Adapter architecture, Experience with Git, Experience with Cucumber, Experience working in Agile or SAFe, English proficiency for daily communication 📃 Skills: Java, Spring, SpringBoot, Hibernate, SQL, REST, Microservices, Reactor, WebFlux, Git, Cucumber, DDD, SAFe, Angular, Jasmine 🏢 Description: Salary: 1000-1200 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2-3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on modernizing corporate digital banking services and building a new online banking platform for corporate customers . The project aims to replace a legacy corporate netbanking system with a modern digital channel that improves payments, account management, liquidity overview, employee administration, and permissions management . The environment includes both microservice and monolithic architectures , with a strong focus on API development, Domain-Driven Design (DDD), reactive programming, and resilient system architecture . Responsibilities you'll have Developing and enhancing backend services and APIs for corporate banking solutions Building new features that modernize banking services related to accounts, payments, file transfers, and international/local financial services Maintaining and improving systems within microservice and monolithic architectures Collaborating with developers, product owners, architects, analysts, and QA teams to deliver business solutions Implementing scalable and resilient solutions using DDD, port-adapter architecture, and reactive programming Supporting maintenance, compliance, and continuous improvement of essential banking services Expected competences and knowledge Strong hands-on experience in Java development (preferably 6+ years) Experience in building API solutions and working with REST services Familiarity with reactive programming and distributed systems Practical knowledge of Spring, Hibernate, SQL, Microservices, Git, and Cucumber Understanding of SOLID principles, design patterns, and clean architecture concepts (DDD / Port-Adapter) Experience working in Agile/SAFe environments and strong English communication skills Technologies you'll work with Java Spring Framework / Spring Boot Hibernate SQL REST APIs & Microservices Reactive Programming (e.g., Reactor/WebFlux) Git Cucumber Angular (basic frontend exposure, nice to have) Jasmine (nice to have) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Frontend Architect role in a financial project focused on building secure, high-performance, interactive web applications supporting complex workflows and real-time data. The position involves shaping frontend architecture, developing Web Components, and ensuring code quality and performance across large-scale systems. Hybrid work model with strong emphasis on technical excellence and collaboration in international teams. 🗂️ Requirements: Strong expertise in HTML, CSS, JavaScript, TypeScript, Experience with Web Components and Lit, Solid understanding of Node.js and npm ecosystem, Experience writing unit tests with Vitest, Strong knowledge of frontend architecture and design patterns, Experience with performance optimization and Core Web Vitals, Ability to integrate REST and GraphQL APIs, Experience in large-scale, modular frontend codebases 📃 Skills: TypeScript, JavaScript, HTML5, CSS3, Sass, WebComponents, Lit, Node.js, npm, Vitest, Playwright, REST, GraphQL, CI/CD, GitHubActions, GitLabCI, Kafka, MQ, NinjaFork 🏢 Description: Salary: 900-1200 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on building secure, high‑performance, and highly interactive web applications that support complex business workflows, real‑time data processing, and seamless user experiences. You’ll play a key role in shaping the frontend architecture, ensuring code quality, and driving technical excellence across the team. Responsibilities you'll have Architect and implement complex, interactive user interfaces and single‑page applications using TypeScript and JavaScript Define and maintain best practices for frontend architecture, state management, and component reusability Develop and maintain Web Components using Lit, ensuring modularity and long‑term maintainability Optimize application performance, improve Core Web Vitals, and ensure smooth experiences across devices and browsers Collaborate closely with backend engineers, UX/UI designers, and product managers to deliver end‑to‑end product features Integrate with REST and GraphQL APIs, ensuring reliability, security, and consistency of data flows. Conduct performance audits, code reviews, and mentor other developers Contribute to CI/CD pipelines and deployment workflows (nice‑to‑have) Participate in system design discussions and influence technical decisions across the product Expected competences and knowledge Strong expertise in HTML, CSS, JavaScript, TypeScript Experience with Web Components and Lit Solid understanding of Node.js and npm ecosystem Experience writing unit tests with Vitest Strong knowledge of frontend architecture, design patterns, and performance optimization Ability to work with REST/GraphQL APIs Experience in large‑scale, modular frontend codebases Strong communication skills and ability to collaborate in cross‑functional teams Technologies you'll work with TypeScript, JavaScript Web Components, Lit HTML5, CSS3, Sass Node.js, npm Vitest, Playwright (optional) REST, GraphQL CI/CD tools (GitHub Actions, GitLab CI, or similar) Kafka, MQ systems (nice‑to‑have) NinjaFork (nice‑to‑have) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: B2B role for a Senior Java Developer to build a greenfield Straight-Through Processing (STP) lending platform focused on automated, scalable end-to-end loan processing. The position involves designing and developing a modern backend system with event-driven architecture and multiple integrations. You will influence architectural decisions and technology choices while working in an Agile, international environment. 🗂️ Requirements: 5+ years of experience as Java Developer, Strong experience with Java 21+, Hands-on experience with Spring Boot, Deep knowledge of JPA/Hibernate, Experience designing and building REST APIs, Experience with Kafka and event-driven architecture, Experience with relational databases and database design, Experience with Maven, Experience with Liquibase or similar versioning tools, Understanding of clean architecture and design principles, Experience working in Agile environment, Ability to work in English-speaking team 📃 Skills: Java, Spring, SpringBoot, JPA, Hibernate, Kafka, REST, Maven, Liquibase, SQL, PostgreSQL, Oracle, Git, Cucumber, Copilot, Agile 🏢 Description: Salary: 1000-1400 PLN/day on B2B Work model: elastic hybrid from Gdańsk/ Gdynia (2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on building a modern Straight-Through Processing (STP) Lending platform , designed to support end-to-end loan processing in a highly automated and scalable way. The system will play a central role in the lending ecosystem, integrating with multiple internal and external services, ensuring efficient data flow and real-time event processing. As this is a greenfield initiative, you will have a direct impact on architectural decisions, technology choices, and development standards, helping to shape a robust backend platform from the ground up. Responsibilities you'll have Designing and developing scalable backend services using Java and Spring Boot Building and maintaining REST APIs for integration with external and internal systems Implementing event-driven architecture using Kafka Designing and managing persistence layers with JPA and relational databases Managing database schema evolution using Liquibase Collaborating closely with Product Owner and Business SMEs to refine requirements Writing clean, maintainable, and testable code following best engineering practices Leveraging AI-assisted tools (e.g., GitHub Copilot) to improve development efficiency Participating in Agile ceremonies and contributing to continuous improvement Ensuring high code quality through testing, code reviews, and best practices Expected competences and knowledge 5y+ of experience as Java Developer Strong experience in Java ( Java 21+) with solid understanding of backend development Extensive hands-on experience with Spring Boot framework Deep knowledge of JPA/Hibernate and database design principles Experience in building RESTful APIs and integrating distributed systems Understanding of event-driven architectures ( Kafka ) Familiarity with Maven for build and dependency management Experience with Liquibase or similar tools for database versioning Good understanding of clean architecture and software design principles Experience working in Agile environments Strong communication skills and ability to work in an English-speaking team Nice to have: experience with Cucumber for BDD testing Technologies you'll work with Java 21+ Spring Boot JPA / Hibernate Apache Kafka REST APIs Maven Liquibase Relational databases (e.g., PostgreSQL, Oracle) GitHub Copilot (AI-assisted development) Cucumber (optional, for testing) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Senior Java backend role focused on developing and modernizing microservices and integration components for a financial platform in a hybrid work model. The position involves building enterprise integrations, supporting application rearchitecture, troubleshooting production issues, and collaborating in Agile Scrum teams. The project operates in an international banking environment with technologies such as Java, Spring Boot, Kafka, IBM MQ, Kubernetes, and Oracle. 🗂️ Requirements: 10+ years of Java backend development experience, Experience in large-scale enterprise environments, Knowledge of SQL and relational databases, Experience with Oracle, Experience with IBM MQ, Experience with Kafka, Experience with Kubernetes, Experience with REST services and microservices, Knowledge of integration patterns, Experience with Maven, Experience with Git, Experience with CI/CD pipelines, Experience with JUnit, Experience with Testcontainers, Ability to analyze requirements and system flows, Ability to troubleshoot production issues, Fluent English 📃 Skills: Java, Spring, SpringBoot, SpringIntegration, Kafka, IBMMQ, Kubernetes, SQL, Oracle, REST, Microservices, Maven, Git, CI/CD, JUnit, Testcontainers, Jira, Scrum 🏢 Description: Salary: 1000 - 1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on developing and modernising backend integration components around the Safekeeping and Corporate Actions platform. You will work on Java-based microservices and integration components connecting IMSecurities with other Nordea systems. The platform is undergoing intensive development, including migration of business flows and volumes, implementation of new business logic, and rearchitecture of existing application components. Working in a Scrum environment, you will contribute to development, analysis, deployment activities, troubleshooting, and knowledge sharing across the team. Responsibilities you'll have Design, develop, test, deploy, and support Java-based microservices and integration components Develop integrations between IMSecurities and other enterprise systems Support application modernization and rearchitecture initiatives Implement new business functionality and support business flow migrations Participate in requirement analysis and clarification activities Analyze business and system flows Support deployment planning and release activities Troubleshoot and resolve production issues Collaborate with developers, analysts, QA, and infrastructure teams Contribute to knowledge sharing and promote good development practices Work within Agile Scrum teams using Jira Expected competences and knowledge Min. 10 years of experience in Java backend development within large-scale enterprise environments Knowledge of SQL and experience with relational databases , preferably Oracle Messaging and event-driven integration, preferably IBM MQ and Kafka Familiarity with containerized environments and Kubernetes Experience with REST services, microservices and integration patterns Experience working with Maven, Git and CI/CD pipelines Automated testing with JUnit and Testcontainers Ability to analyse requirements, system flows, logs, data flows and production issues Fluent English Nice-to-have knowledge and experience Experience in banking or trading environments Experience with cloud-ready application design Experience modernising integration custody, settlement, corporate actions or another regulated domain Experience with containerisation and layers around vendor platforms or legacy systems Practical experience with test automation, static code analysis and AI-assisted development tools Technologies you'll work with Java Spring Boot and Spring Integration Kafka IBM MQ Kubernetes SQL Oracle Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior Java Developer role in a Credit Data Sourcing project within the banking domain, focused on building and maintaining microservices and complex data integrations. The position involves working in an integration-heavy, data-driven environment, closely collaborating with business stakeholders to deliver scalable solutions supporting credit risk processes. Hybrid work model with international exposure and long-term B2B engagement. 🗂️ Requirements: Extensive experience in Java development, Experience with microservices-based architectures, Strong understanding of data flows and data sourcing systems, Experience in integration-heavy environments, Ability to analyze end-to-end processes across interconnected systems, Experience working in Agile/Scrum teams, Strong analytical and problem-solving skills, Excellent communication skills with technical and business stakeholders 📃 Skills: Java, Microservices, Data, Integration, Event-driven, Distributed, Agile, Scrum, Angular, React 🏢 Description: Salary: 900-1200 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a Credit Data Sourcing project , developing and maintaining solutions for collecting, processing, integrating, and distributing credit-related data across the organization. As a Senior Java Developer, you will work in a complex, integration-heavy environment where understanding data flows , system architecture, and business processes is as important as coding. Working closely with Business Analysts, Product Owners, and stakeholders, you will help shape solutions supporting credit risk and banking processes , balancing both business and technical needs. Responsibilities you'll have Design, develop, and maintain Java-based microservices within the Credit Data Sourcing domain Build, optimize, and maintain complex data flows and integrations between multiple systems Collaborate closely with Business Analysts, Product Owners, and stakeholders to understand business requirements and translate them into scalable technical solutions Participate in requirements refinement, solution design, and technical discussions Analyze incidents, perform root cause investigations, and support production environments Ensure high-quality code through testing, code reviews, and performance optimization Expected competences and knowledge Extensive experience in Java development , preferably in microservices-based architectures Strong understanding of data flows, data sourcing systems, and integration-heavy environments Ability to analyze end-to-end processes and understand the impact of changes across interconnected systems Experience working in Agile/Scrum teams and collaborating with both technical and business stakeholders Strong analytical thinking, problem-solving skills, and ownership mindset Excellent communication skills with the ability to challenge, clarify, and refine requirements Nice to have Experience with Angular or React frameworks, allowing for effective collaboration across the full development lifecycle Knowledge of credit risk , banking systems , or the broader financial services domain Familiarity with event-driven architectures , asynchronous communication patterns, and distributed systems Experience with performance tuning , optimization, and troubleshooting in data-heavy environments and high-volume processing systems Technologies you'll work with Java Microservices Architecture Data Integration & Data Sourcing Solutions Event-Driven Architectures Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Senior Java Developer role in a Credit Data Sourcing project within the banking sector, focused on building and maintaining microservices and complex data integrations. The position involves designing scalable solutions for credit risk processes in an integration-heavy, event-driven environment. Hybrid work model with competitive B2B daily rate. 🗂️ Requirements: Extensive experience in Java development, Experience with microservices-based architectures, Strong understanding of data flows and data sourcing systems, Experience in integration-heavy environments, Ability to analyze end-to-end processes across interconnected systems, Experience working in Agile/Scrum teams, Ability to collaborate with technical and business stakeholders, Strong analytical and problem-solving skills, Excellent communication skills 📃 Skills: Java, Microservices, Data, Integration, Event-Driven, Agile, Scrum, Angular, React 🏢 Description: Salary: 900-1200 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a Credit Data Sourcing project , developing and maintaining solutions for collecting, processing, integrating, and distributing credit-related data across the organization. As a Senior Java Developer, you will work in a complex, integration-heavy environment where understanding data flows , system architecture, and business processes is as important as coding. Working closely with Business Analysts, Product Owners, and stakeholders, you will help shape solutions supporting credit risk and banking processes , balancing both business and technical needs. Responsibilities you'll have Design, develop, and maintain Java-based microservices within the Credit Data Sourcing domain Build, optimize, and maintain complex data flows and integrations between multiple systems Collaborate closely with Business Analysts, Product Owners, and stakeholders to understand business requirements and translate them into scalable technical solutions Participate in requirements refinement, solution design, and technical discussions Analyze incidents, perform root cause investigations, and support production environments Ensure high-quality code through testing, code reviews, and performance optimization Expected competences and knowledge Extensive experience in Java development , preferably in microservices-based architectures Strong understanding of data flows, data sourcing systems, and integration-heavy environments Ability to analyze end-to-end processes and understand the impact of changes across interconnected systems Experience working in Agile/Scrum teams and collaborating with both technical and business stakeholders Strong analytical thinking, problem-solving skills, and ownership mindset Excellent communication skills with the ability to challenge, clarify, and refine requirements Nice to have Experience with Angular or React frameworks, allowing for effective collaboration across the full development lifecycle Knowledge of credit risk , banking systems , or the broader financial services domain Familiarity with event-driven architectures , asynchronous communication patterns, and distributed systems Experience with performance tuning , optimization, and troubleshooting in data-heavy environments and high-volume processing systems Technologies you'll work with Java Microservices Architecture Data Integration & Data Sourcing Solutions Event-Driven Architectures Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: Hybrid B2B role for a Python developer focused on building scalable applications, APIs, microservices, and AI-driven data transformation solutions in an international financial environment. The position involves developing integrations, CI/CD pipelines, and automation solutions using modern cloud and AI technologies. Candidates will collaborate closely with product and architecture teams while working with data enrichment, LLMs, and enterprise systems. 🗂️ Requirements: Advanced Python development, Advanced Flask or similar framework knowledge, Advanced REST API knowledge, Intermediate LLM experience, Intermediate Docker experience, Intermediate JavaScript knowledge, Intermediate PostgreSQL knowledge, SQLAlchemy knowledge, Experience with CI/CD pipelines, Experience with Git, Ability to write tests with pytest, Experience with data integrations and transformation, English communication skills, Hybrid availability in Gdynia, Gdańsk, Warszawa, or Łódź 📃 Skills: Python, Flask, REST, LLM, Docker, JavaScript, PostgreSQL, SQLAlchemy, React, CSS, SCSS, pytest, CI/CD, Git, TypeScript, Redux, Zustand, SharePoint, Artifactory, JFrog, Kubernetes, AWS 🏢 Description: Salary: 1100-1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project We are looking for a forward leaning developer to work closely with Product Owners, Solution Architects and Analysts to refine epics, user stories and business requirements into technical design and working software, with high development standards and to implement some of the industry best practices. Key topics in scope include data transformation as well as AI driven data enrichment, where the overall solution objective is to overlook that all parties involved act according to rules and regulations. And importantly, that this is done as efficiently as possible using modern ways of automation, including but not limited to AI. This involves building data integrations and data transformation logic, reading from and writing to various databases and APIs, securing data completeness and data reconciliations, building microservices and deployment pipelines, and utilizing LLMs both in the actual solutions (e.g. data enrichment) and for support in your role as developer. Responsibilities you'll have Develop and maintain scalable applications, APIs, and microservices using Python and modern frameworks. Collaborate with Product Owners, Architects, and Analysts to transform business requirements into technical solutions. Build and optimize data integrations, transformation processes, and AI-powered data enrichment capabilities. Ensure data quality, consistency, and reliability across databases, APIs, and enterprise systems. Develop and maintain CI/CD pipelines, automated tests, and deployment processes. Support the adoption of AI, automation, and engineering best practices to improve business processes and software quality. Work closely with stakeholders in an international environment to deliver efficient and innovative solutions. To succeed in this role, we believe that a candidate: is a team player who enjoys collaboration in a multicultural environment has a genuine interest to learn and develop within the area is appreciated for your positive approach and ability to turn challenges in to opportunities is good at engaging stakeholders at different levels is a skilled engineer at heart with passion for developing solutions and take pride in seeing your efforts paying off in form of a great business application Expected competences and knowledge Advanced knowledge in Python development and configuration Advanced knowledge of Flask (or similar) frameworks Advanced knowledge of REST APIs Intermediate LLM experience Intermediate Docker experience Intermediate JavaScript experience Intermediate knowledge of PostgreSQL and SQLAlchemy Familiarity with React Familiarity with CSS and SCSS Ability to write tests (preferably with pytest) Experience with CI/CD and creating pipelines Experience with Git Technologies you'll work with Experience with AI tooling Familiarity with TypeScript Familiarity with web components Familiarity with Redux/Zustand Experience with SharePoint API Experience with Artifactory (JFrog) Experience with Kubernetes Experience with cloud services (AWS) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.