Java Developer

🏢 Summary: Java Backend Developer role focused on building backend solutions while leveraging AI-assisted development tools and shaping AI-driven engineering practices. The position offers flexible hybrid work from Cracow and involvement in establishing AI-supported workflows across teams. Candidates will actively use tools like Codex and Claude and contribute to automation using MCP servers. 🗂️ Requirements: 3+ years of commercial software development experience, Experience with Java backend development, Fluent use of AI tools such as Codex and Claude, Experience setting up AI-assisted development processes, Ability to explain and use MCP servers for automation, Strong analytical and problem-solving skills, Ability to collaborate with cross-functional teams 📃 Skills: Java, Codex, Claude, MCP, AI, Backend 🏢 Description: Salary: 500 - 800 PLN/day on B2B Work model: elastic hybrid from Cracow (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 The Jit community will bring you a nice time during regular integration meetings Exposure to AI-assisted development Project We are looking for a Java Backend Developer who is passionate about modern software development and AI-assisted engineering. You will work on backend solutions while actively leveraging AI tools and helping shape the way AI is used across the software development lifecycle. Responsibilities you'll have Design, develop, and maintain backend applications using Java Use AI tools such as Codex and Claude as part of the daily development process Contribute to establishing and improving AI-assisted development practices Support the adoption of AI-driven workflows across engineering teams Collaborate with developers, testers, and analysts to improve productivity and software delivery processes Identify opportunities to automate work using AI tools, workflows, and MCP servers Share knowledge and best practices related to AI-assisted software development Expected competences and knowledge 3+ years of commercial software development experience Fluent work with AI tools such as Codex and Claude Experience in setting up AI-assisted development processes Ability to explain how MCP servers can automate work Strong analytical and problem-solving skills Excellent learning ability and curiosity about emerging technologies Good communication and collaboration skills Technologies you'll work with Java AI Agents (Codex, Claude) MCP Servers 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: 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: 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 Angular Developer role focused on leading the migration of a legacy insurance platform to a modern Angular (v21) stack in a hybrid work model. The position involves designing and maintaining frontend applications, collaborating across teams, and leveraging AI-assisted development tools. The project combines legacy system modernization with modern frontend architecture and best engineering practices. 🗂️ Requirements: Minimum 5 years commercial experience in frontend development, Strong expertise in Angular, Strong expertise in TypeScript, Solid knowledge of JavaScript (ES6+), Experience with legacy systems, Experience with AngularJS, Hands-on experience with AI coding assistants, Ability to write and review code using AI tools, Strong knowledge of frontend testing (unit, integration, e2e), Experience with REST APIs, Experience with Git, Experience with CI/CD pipelines 📃 Skills: Angular, TypeScript, JavaScript, AngularJS, REST, Git, CI/CD, Angular Material, Tailwind, Bootstrap, Cursor, Copilot, Claude, AI, HTML, CSS 🏢 Description: Salary: 900 - 1200 PLN/day on B2B Work model: elastic hybrid from Cracow (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 The Jit community will bring you a nice time during regular integration meetings Exposure to AI-assisted development Project We are looking for a Senior Angular Developer to join a team working on modern web applications in the insurance domain. The primary focus of this role is leading and contributing to the migration of a legacy system to a modern technological stack (Angular 21). The application is a configurable platform used by insurance agencies, operating between SaaS and PaaS models. Development is distributed across multiple teams, each responsible for different parts of the system. The environment combines deep legacy system understanding with modern frontend practices and AI-assisted development. Responsibilities you'll have Design, develop, and maintain frontend applications using Angular and TypeScript Lead and actively contribute to the migration of legacy systems to modern Angular architecture Collaborate with cross-functional teams working on different parts of the platform Work effectively with AI-assisted development tools and agents to increase productivity Ensure high standards of code quality, testing, and maintainability Participate in technical decision-making , architecture discussions, and solution design Support and mentor junior and mid-level developers Contribute to effort estimation, planning, and delivery Expected competences and knowledge Minimum 5 years of commercial experience in frontend development Strong expertise in Angular and TypeScript Solid understanding of JavaScript fundamentals Experience working with legacy systems , including occasional exposure to AngularJS Hands-on experience with AI coding assistants (e.g., Cursor, Claude Code, Copilot) and working alongside established AI agents Ability to effectively write and review code with AI assistance , while maintaining ownership and code quality Strong understanding of frontend testing concepts and practices (unit, integration, e2e) Technologies you'll work with Angular TypeScript & modern JavaScript (ES6+) AngularJS (in legacy parts of the system) AI-assisted development tools (e.g., Cursor, Claude Code, Copilot) and preconfigured AI agents UI frameworks (Angular Material, Tailwind, Bootstrap) REST APIs Git, CI/CD pipelines Nice to have: Experience with Java (useful for backend collaboration) Previous exposure to AngularJS migration projects Experience working in SaaS or PaaS platforms 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: B2B contract role for a Platform/Automation Engineer to build and enhance a Developer Experience Portal based on Backstage.io within a Zero Trust environment. The position focuses on improving developer productivity through self-service automation, platform APIs, and UX/UI-driven solutions using Node.js and React. Hybrid work model with strong emphasis on modern platform engineering practices. 🗂️ Requirements: Strong Node.js programming skills, Advanced knowledge of React, Experience with Backstage.io and plugin development, Experience in UX/UI design, Experience with YAML-based configuration, Experience with Infrastructure as Code, Ability to develop and integrate Platform APIs 📃 Skills: Node.js, React, Backstage, YAML, IaC, APIs, UX/UI 🏢 Description: Salary: 1000-1300 PLN/day on B2B Work model: elastic hybrid from 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 You will be involved in a financial project focused on building and enhancing a Developer Experience Portal based on Backstage.io within a Zero Trust security environment. The role is part of the Automation / Platform Engineering area, aiming to improve developer productivity, self-service capabilities, and secure platform access. Responsibilities you'll have Development of the Developer Experience Portal (Backstage.io) using Node.js and React Designing UX/UI solutions for both personal implementations and broader developer usage Building and maintaining self-service automation workflows and templates Developing and integrating Platform APIs Contributing to platform engineering and tech stack evolution Collaborating with Zero Trust and Developer Experience teams Expected competences and knowledge Strong Node.js programming skills Advanced knowledge of React Experience with Backstage.io , including plugin development UX/UI design experience with strong aesthetic sense Experience with YAML -based configuration (Infrastructure as Code) Nice to have Experience with CI/CD pipelines and automation Knowledge of Docker and Kubernetes Experience with network segmentation automation, including: Physical firewalling (Check Point, Ansible), Virtual firewalling (NSX DFW, Terraform), Google Cloud firewalling Technologies you'll work with Node.js React Backstage.io YAML / IaC CI/CD tools Docker Kubernetes Ansible Terraform NSX DFW Google Cloud Platform (GCP) 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 Developer role in the KYC domain focused on designing and developing backend applications within a modern microservices architecture. The position involves building RESTful services, implementing testing strategies, and containerizing applications using Docker in an agile environment. The project operates on a modern Java stack with opportunities to work on scalable financial systems. 🗂️ Requirements: Minimum 5 years commercial experience with Java, Strong experience with Spring Boot, Proficiency in modern Java features, Experience designing and developing microservices, Experience building REST APIs and service communication, Experience with Docker and containerization, Ability to write unit and integration tests, Experience with relational databases, Understanding of Agile methodologies 📃 Skills: Java, Spring, SpringBoot, Microservices, REST, Docker, PostgreSQL, MsSQL, Kubernetes, AWS, GCP, Swagger, OpenAPI, SQL, JUnit 🏢 Description: Salary: 1000 - 1300 PLN/day on B2B Work model: 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 We are looking for an experienced Senior Java Developer to join a modern technology stack and a team working within the KYC (Know Your Customer) domain . Responsibilities you'll have Design and develop backend applications using Java, leveraging modern language features (e.g., records, pattern matching, virtual threads) Write clean, maintainable, and testable code following best practices (Clean Code, SOLID principles) Implement unit and integration tests Build and maintain communication between services (REST APIs, messaging) Build and maintain Docker images and manage containers Expected competences and knowledge Min. 5 years of commercial experience with Java and Spring Boot Strong proficiency in modern Java features (e.g., records, pattern matching, virtual threads) Microservices Architecture : Familiarity with designing, developing, and deploying microservices Docker: Experience containerizing applications and managing Docker images/containers Proficient in writing clean, maintainable, and testable code Understanding of software development lifecycle and agile methodologies Database: Experience with relational databases (e.g., PostgreSQL, MsSQL) Additional skills Knowledge of Kubernetes or other container orchestration tools Exposure to cloud platforms (e.g., AWS, GCP) Experience with API documentation tools (e.g., Swagger/OpenAPI) 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: 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.

🏢 Summary: B2B contract for a Senior Java Developer to build and maintain Java-based systems supporting taxation, account management, and investment processing for pension and savings products. The role involves designing calculation engines, integrating with tax authorities, and participating in the full SDLC within an international, English-speaking environment. Hybrid work model with competitive daily rate and focus on engineering quality and mentorship. 🗂️ Requirements: Strong proficiency in Java, Experience with Spring framework, Experience with Hibernate, Experience with relational databases, Proficiency in SQL, Knowledge of OpenAPI, Knowledge of AsyncAPI, Experience with Git, Experience with CI/CD pipelines, Understanding of OOP principles, Knowledge of software design patterns, Ability to participate in full SDLC, English communication skills 📃 Skills: Java, Spring, Hibernate, SQL, PostgreSQL, OpenAPI, AsyncAPI, Git, CI/CD, JMS, MQ, SpringBoot 🏢 Description: Salary: 900-1200 PLN/day on B2B Work model: hybrid from Gdańsk/ Gdynia / 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 You will be involved in developing, enhancing, and maintaining Java-based applications that support taxation, account management, and investment processing for pension and savings products. Responsibilities you'll have Design, develop, and maintain Java applications supporting our savings and investments products Build robust calculation engines that ensure compliance with current tax regulations across multiple countries Develop support for complex business processes, integrating with tax authorities, and generating 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 Mentoring other developers, acting as a code reviewer or design sparring partner but also spreading practical engineering practices across the team Use AI-assisted development and automation in a responsible way to improve productivity, quality and learning 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 Strong collaboration skills and good analytical skills Technologies you'll work with Java 21 Spring Boot Postgres SQL Messaging protocols such as JMS, MQ 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 QA role in a large-scale financial digital platform project, covering web and mobile applications integrated with multiple backend services and APIs. The position focuses on manual and API testing, quality assurance processes, and collaboration within distributed Agile teams to ensure high reliability and quality. Work is hybrid with strong emphasis on test transparency and continuous improvement. 🗂️ Requirements: 8+ years of experience in Quality Assurance, ISTQB Certification (Foundation or higher), Experience testing complex software systems, Experience in mobile application testing, Experience in system testing of web and mobile UI, Experience in API testing, Experience with test management tools (e.g. qTest), Experience working with Jira and Confluence 📃 Skills: QA, ISTQB, API, Postman, Swagger, qTest, Jira, Confluence, Agile, Scrum, Web, Mobile, Testing 🏢 Description: Salary: 500-800 PLN/day on B2B Work model: elastic hybrid from Gdynia or Gdańsk (at least 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 The project focuses on the development and maintenance of a large-scale digital platform supporting financial services used by millions of end users. The solution consists of modern web and mobile applications integrated with multiple backend services and APIs. The system operates in a complex ecosystem with numerous integrations and high quality and reliability requirements. The project is delivered by distributed Agile teams working in an international environment , with a strong focus on quality assurance, test transparency, and continuous improvement of testing practices. Responsibilities you'll have Ensure QA activities are conducted efficiently and properly documented in accordance with established quality standards Analyze requirements and design test cases and test scenarios Plan, execute, and monitor manual testing activities Report, track, verify, and manage defects throughout the development lifecycle Recommend appropriate actions based on test results and identified risks Identify test cases suitable for automation after manual verification Collaborate closely with the Scrum team to ensure high quality of delivered software Expected competences and knowledge 8+ years of professional experience in Quality Assurance ISTQB Certification (Foundation level or higher) Experience in defining, executing, and reporting tests for complex software systems Experience in mobile application testing Experience in system testing of modern Web and Mobile UI Strong experience in API testing using tools such as Postman or Swagger Experience with test management tools (preferably qTest or similar) Practical experience working with Jira and Confluence Strong attention to detail and problem-solving skills Ability to work effectively in an international and cross-functional environment Willingness to learn new tools, processes, and testing approaches 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: Hybrid Java Backend Developer role in a fintech environment focused on building and maintaining backend services for complex financial instruments and calculations. The position involves end-to-end feature delivery, including functional frontend contributions and integration with third-party systems. You will work with modern architectures and AI-assisted coding tools in a regulated, data-intensive domain. 🗂️ Requirements: 10+ years of backend or full-stack development experience, Strong proficiency in Java, Experience building REST APIs and microservices, Experience with HTTP-based integrations, Ability to implement and modify frontend features, Experience with SQL and NoSQL databases, Knowledge of CI/CD pipelines and deployment processes, Active use of AI coding tools, Experience in fintech or financial domain 📃 Skills: Java, REST, HTTP, Microservices, SQL, NoSQL, PostgreSQL, MongoDB, Redis, Angular, React, CI/CD, Copilot, Cursor 🏢 Description: Salary: 1100-1400 pln/md Work model: Hybrid from Gdynia/Gdańsk (once per week from the office) Why choose this offer? End‑to‑end ownership with a modern tech stack Stability combined with continuous growth Autonomy and high‑quality collaboration Project We are looking for a Java Backend Developer with a pragmatic, end-to-end mindset - someone who is not afraid to step into frontend territory when needed and treats AI-assisted coding as a natural part of their workflow. You will be working on complex financial instruments and calculations in a fintech environment , building and maintaining backend services while contributing to full product delivery when required. Responsibilities you'll have Design, develop, and maintain robust backend services and APIs in Java Deliver end-to-end features independently - from backend logic to frontend implementation (e.g. generating monthly cash statements, reports, financial calculations) Work with frontend layers (Angular or other frameworks) at a functional level - not as a specialist, but as someone who can get things done Integrate backend systems with frontend and third-party services Participate in code reviews , maintain code quality standards Support CI/CD pipelines and production releases Leverage AI coding tools (agentic coding, vibe coding) as an active part of daily workflow Expected competences and knowledge 10+ years of experience in backend/full-stack development Strong Java experience (core requirement) Experience building REST APIs, microservices, HTTP -based integrations Basic exposure to frontend frameworks (Angular, React, or other) - ability to implement and modify frontend features, not expert-level Solid SQL / NoSQL (PostgreSQL, MongoDB, Redis) Knowledge of CI/CD pipelines and deployment processes Active use of AI coding tools (Copilot, Cursor, or similar) Experience in fintech or financial domain (complex financial instruments, calculations, reporting) Technologies you'll work with Java REST APIs / HTTP Microservices architecture SQL NoSQL PostgreSQL MongoDB Redis Frontend frameworks CI/CD AI coding tools Client – why choose this particular client from the Jit portfolio? Our client is an international financial services organization operating in the capital markets domain, focused on processing and analyzing large volumes of transactional data. The company develops modern data platforms that support trading, operational efficiency, and regulatory reporting. It operates in a fast-paced, highly regulated environment with a strong emphasis on scalability, data quality, and advanced analytics. 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.