Expert Java Developer (Docker/Kubernetes)

🏢 Summary: Senior Java Developer role focused on developing and modernizing Java-based backend systems for pension and savings products within a financial environment. The position involves upgrading applications to Java 17+ and Spring Boot 3, building scalable and compliant financial solutions, and implementing complex integrations and calculation engines. Work includes full SDLC participation in an international, hybrid setting. 🗂️ Requirements: Strong proficiency in Java, Experience with Spring framework, Experience with Hibernate, Experience with relational databases, Advanced SQL knowledge, Experience with PostgreSQL, Experience with OpenAPI, Experience with AsyncAPI, Experience with Git, Experience with CI/CD pipelines, Knowledge of software design patterns, Understanding of object-oriented programming, Experience upgrading to Java 17+, Experience with Spring Boot 3.x 📃 Skills: Java, Spring, SpringBoot, Hibernate, PostgreSQL, SQL, OpenAPI, AsyncAPI, Git, CICD, JMS, MQ 🏢 Description: Salary: 1100-1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa (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 The project focuses on the development and enhancement of Java-based backend applications supporting pension and savings products. The Senior Java Developer will be responsible for building and improving solutions related to taxation, account management, and investment processing . The role involves working on scalable, secure financial systems that ensure high reliability and regulatory compliance. Responsibilities you'll have Support the upgrade of existing applications to Java 17 (at least) and Spring Boot 3.3.x, contributing experience from similar modernization initiatives Design, develop, and maintain high-quality Java applications supporting savings and investment products Build robust calculation engines that ensure compliance with current tax regulations across multiple countries Implement solutions for complex business processes, including integrations with tax authorities and generation of customer-facing reports Participate in the full software development lifecycle including requirements analysis, design, coding, testing, and deployment Collaborate with financial analysts to translate requirements into technical solutions Expected competences and knowledge Strong proficiency in Java and related frameworks (Spring, Hibernate, etc.) Experience with relational databases and SQL (PostgreSQL, etc.) Knowledge of OpenAPI and AsyncAPI for producing and consuming data Familiarity with version control systems (Git) and CI/CD pipelines Understanding of software design patterns and object-oriented programming principles Technologies you'll work with Java 17, 21 Spring Boot Hibernate Postgres SQL Messaging protocols (e.g. JMS, MQ) SQL OpenAPI AsyncAPI Git CI/CD 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: 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 Developer role focused on maintaining and enhancing an existing Java-based system, ensuring stability and working with a legacy codebase in an Agile environment. The position involves designing backend services, developing REST APIs, and supporting ongoing system maintenance. Hybrid work model with collaboration in international teams. 🗂️ Requirements: Experience with Java 7/8, Experience with Maven, Experience designing backend services, Experience developing REST APIs, Ability to write unit tests, Experience working with legacy codebase, Experience working in Agile environment, Fluency in English, Experience with version control systems 📃 Skills: Java, Maven, JSP, Git, REST, Agile, UnitTesting 🏢 Description: Salary: 1000-1200 PLN/day on B2B Work model: hybrid from 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 join a team working on an existing system that requires ongoing maintenance and support . The current focus is on ensuring system stability, maintaining functionality, and working with a legacy codebase. Work is carried out in an Agile environment, with a strong emphasis on collaboration and code quality. Responsibilities you'll have Designing and implementing backend services based on given specifications Developing and maintaining REST APIs Writing and maintaining unit tests Working with and analyzing legacy codebase Contributing to the ongoing maintenance and stability of the existing system Collaborating in an Agile environment Using version control and supporting development workflows Expected competences and knowledge Experience with Java 7/8 Experience with Maven Experience in designing and implementing backend services Experience in writing REST APIs Willingness to work with and analyze legacy systems Experience working in an Agile environment Good communication skills Fluency in English Technologies you'll work with Java 7/8 Maven JSP Git REST APIs 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: 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: 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: 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: Hybrid B2B role for a Java Developer in a financial project focused on integrations and data flow within Financial Crime Prevention. The position combines backend development and DevOps practices, emphasizing microservices, APIs, and reliable data exchange between systems. You will work in an international Agile environment with modern technologies and cloud-native solutions. 🗂️ Requirements: Strong Java 21 knowledge, Spring Boot experience, Experience in DevOps-oriented environment, Knowledge of microservices architecture, API development experience, PostgreSQL and SQL knowledge, DataStage (ETL) experience, Kubernetes knowledge, Bitbucket knowledge, Jenkins knowledge, Kafka experience, Ability to work in Agile/Scrum, Experience in international environment 📃 Skills: Java, Spring, SpringBoot, Kubernetes, Kafka, Maven, PostgreSQL, SQL, DataStage, Liquibase, JOLT, Bitbucket, Jenkins, Debezium, ApacheCamel, OracleSOA 🏢 Description: Salary: 1000-1400 PLN/day on B2B Work model: hybrid from Gdynia/Gdańsk (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 the development of functionalities related to integrations and data flow processes within the Financial Crime Prevention area. You will work on building and maintaining solutions that enable efficient and reliable data exchange between systems, supporting key business processes. The role combines software development and DevOps practices while collaborating with international teams in an Agile environment. Responsibilities you'll have Developing and maintaining functionalities related to Financial Crime Prevention processes Designing, implementing, and enhancing integration solutions and data flows between systems Building and maintaining microservices and APIs using Java and Spring Boot Supporting ETL processes and working with databases to ensure efficient data processing Collaborating with DevOps teams to ensure smooth deployments and platform stability Participating in Agile/Scrum ceremonies and contributing to continuous improvement initiatives Expected competences and knowledge Strong Java 21 development skills , preferably with Spring Boot Experience working in a DevOps-oriented environment Knowledge of microservices architecture and API development Experience with PostgreSQL databases, SQL, and DataStage (ETL) Knowledge of Kubernetes, Bitbucket, and Jenkins Experience working with Kafka Good teamwork , interpersonal, and communication skills Ability to work effectively in an international environment Nice to have: Apache Camel Oracle SOA Suite experience Knowledge of Scrum methodology Understanding of CDC concepts, especially Debezium Technologies you'll work with Java 21 Spring Boot Kubernetes Kafka Maven PostgreSQL Liquibase JOLT 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 Java Developer role in a financial project modernizing and rebuilding a digital banking channel for corporate clients. The position involves developing and enhancing APIs, contributing to system modernization from legacy platforms, and working across microservice and monolith architectures in a SAFe Agile environment. The project focuses on resilient, domain-driven solutions supporting core banking services such as payments and accounts. 🗂️ Requirements: Minimum 6 years of experience in Java development, Experience in building API solutions, Experience with Spring and Hibernate, Experience with SQL and REST, Experience with Microservices architecture, Minimum 2 years of experience with Angular, Experience with Cucumber, Experience with Jasmine unit testing, Knowledge of SOLID principles, Knowledge of design patterns, Experience with GIT, Experience working in Agile environment, Familiarity with reactive programming, Knowledge of Domain Driven Design (DDD) 📃 Skills: Java, Spring, Hibernate, Angular, SQL, REST, Microservices, GIT, Cucumber, Jasmine, Reactive, DDD, SAFe 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (3 days per week from the modern 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 modernising and building a new digital banking channel for corporate customers. The initiative aims to replace the legacy platform and redefine how clients manage payments, accounts, liquidity, and user permissions. The team operates within the SAFe Agile framework, delivering resilient solutions across microservice and monolith architecture using DDD and port-adapter approach. Responsibilities you'll have Developing new features that modernise the platform and support maintenance and compliance requirements Building and enhancing API solutions to support essential banking services such as Accounts, Payments, File Transfer, and international and local services Contributing to system modernisation and transition from legacy solutions Working within microservice and monolith architecture Collaborating closely with developers, Product Owner, architects, analysts and QA Participating in Agile (SAFe) ceremonies and delivering high-quality software in an international environment Expected competences and knowledge Hands-on experience in Java development (preferred at least 6 years) Experience in building API solutions Familiarity with reactive programming Working knowledge of Spring, Hibernate and Cucumber Experience with SQL, REST, Microservices and GIT 2 years of experience with Angular Working knowledge of unit testing in Jasmine Knowledge of SOLID principles and design patterns Experience working in an Agile environment Technologies you'll work with Java Spring Angular Cucumber Hibernate Jasmine SQL REST Microservices GIT Reactive stack Domain Driven Design (DDD) SAFe Agile framework 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 contract role for a senior Java developer in a financial project modernizing and rebuilding a digital banking channel for corporate clients. The position focuses on developing and enhancing APIs, migrating from legacy systems, and delivering solutions within microservice and monolith architectures using DDD in a SAFe Agile environment. Hybrid work model with collaboration in an international team. 🗂️ Requirements: Minimum 6 years of experience in Java development, Experience in building API solutions, Experience with Spring and Hibernate, Experience with SQL and REST, Experience with Microservices architecture, Minimum 2 years of experience with Angular, Experience with unit testing in Jasmine, Knowledge of SOLID principles and design patterns, Experience with Cucumber, Experience working in Agile (SAFe) environment, Experience with Git, Familiarity with reactive programming 📃 Skills: Java, Spring, Hibernate, Angular, Cucumber, Jasmine, SQL, REST, Microservices, Git, Reactive, DDD, SAFe 🏢 Description: Salary: 1000 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk / Warszawa (3 days per week from the modern 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 modernising and building a new digital banking channel for corporate customers. The initiative aims to replace the legacy platform and redefine how clients manage payments, accounts, liquidity, and user permissions. The team operates within the SAFe Agile framework, delivering resilient solutions across microservice and monolith architecture using DDD and port-adapter approach. Responsibilities you'll have Developing new features that modernise the platform and support maintenance and compliance requirements Building and enhancing API solutions to support essential banking services such as Accounts, Payments, File Transfer, and international and local services Contributing to system modernisation and transition from legacy solutions Working within microservice and monolith architecture Collaborating closely with developers, Product Owner, architects, analysts and QA Participating in Agile (SAFe) ceremonies and delivering high-quality software in an international environment Expected competences and knowledge Hands-on experience in Java development (preferred at least 6 years) Experience in building API solutions Familiarity with reactive programming Working knowledge of Spring, Hibernate and Cucumber Experience with SQL, REST, Microservices and GIT 2 years of experience with Angular Working knowledge of unit testing in Jasmine Knowledge of SOLID principles and design patterns Experience working in an Agile environment Technologies you'll work with Java Spring Angular Cucumber Hibernate Jasmine SQL REST Microservices GIT Reactive stack Domain Driven Design (DDD) SAFe Agile framework 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.