Fullstack Developer (Flutter, Angular, .NET)

🏢 Summary: B2B mid-level Flutter Developer role to build a greenfield fintech platform in the banking domain, focusing on mobile applications and frontend architecture. You will design and develop Flutter-based mobile solutions integrated with a React web layer, collaborating in a cross-functional team. The position offers real impact on architecture and core frontend services in a large-scale financial project. 🗂️ Requirements: Commercial experience with Flutter, Experience building mobile applications for Android and iOS using Flutter, Understanding of frontend architecture, Knowledge of state management patterns, Experience integrating REST APIs, Ability to design scalable and performant UI, Experience with code reviews and clean code practices 📃 Skills: Flutter, React, REST, Android, iOS, GCP, CI/CD, APIs, State-management 🏢 Description: Salary: 500-900 PLN/MD (B2B contract) Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (3 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. As a Flutter Developer , you will be part of a cross-functional squad responsible for designing and developing the mobile layer and parts of the frontend ecosystem of this greenfield product. You will work within a mixed frontend-backend squad, collaborating closely with your Tech Lead, Senior Developer, Business Analyst, and QA Engineer. The project involves Flutter-based applications integrated with a React-based web layer , giving you exposure to both mobile and web frontend ecosystems. Responsibilities you'll have Design, develop, and maintain mobile applications using Flutter Collaborate with React developers on shared frontend architecture and API integration Build performant and scalable UI across mobile and web-integrated solutions Translate business requirements and UI/UX designs into clean, maintainable code Integrate applications with backend APIs and services Participate in code reviews, technical discussions, and architectural decisions Write clean, testable, and well-documented code following best practices Contribute to establishing cross-platform frontend standards and patterns Communicate progress, blockers, and technical decisions in English Expected competences and knowledge Solid commercial experience in Flutter development (mid-level) Hands-on experience building mobile applications with Flutter (Android/iOS) Understanding of frontend architecture and state management patterns Experience with REST API integration Fluent English ( spoken and written) Availability to work from the office 3 days per week (Warsaw, Kraków, Tricity, or Rzeszów) Nice to have: Experience with React Familiarity with Google Cloud Platform (GCP) Experience in financial services or banking domain Experience in greenfield projects Knowledge of state management patterns, design systems, and component-driven architecture Technologies you'll work with Flutter React REST APIs GCP Modern frontend tooling and libraries CI/CD pipelines Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers . It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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. Wymagania Oczekujemy Oferujemy

🏢 Summary: Hybrid Flutter and React developer role focused on building and maintaining mobile (iOS/Android) and web applications in the e-commerce domain. The position involves developing new features, integrating with backend APIs, and contributing to architectural decisions. The offer emphasizes modern technologies, technical ownership, and impact on product direction. 🗂️ Requirements: Strong experience with Flutter and Dart, Experience building mobile applications for iOS and Android, Knowledge of mobile architectures (MVVM, MVC or similar), Experience integrating REST or GraphQL APIs, Ability to debug and optimize mobile applications, Strong knowledge of React, Proficiency in JavaScript or TypeScript, Experience with modern frontend development (Hooks, state management), Solid knowledge of HTML and CSS, Experience implementing UI based on Figma designs 📃 Skills: Flutter, Dart, React, JavaScript, TypeScript, HTML, CSS, REST, GraphQL, MVVM, MVC, Figma, iOS, Android, Hooks, StateManagement 🏢 Description: Salary: 1000 - 1300 pln/md B2B Work model: elastic hybrid from Gdynia (at least 2 days per week from the office) Why choose this offer? We focus on modern technologies and a flexible approach – working in an environment where efficiency, collaboration, and autonomy matter. An organizational culture driven by innovation , transparency , and strong partnership within the team. The opportunity to work with leading brands in the e-commerce industry. A smaller organizational structure that allows for a real impact on project direction and technology decisions. Responsibilities (Flutter / Mobile) Design and develop mobile applications (iOS / Android) using Flutter Implement user interfaces based on designs and design systems (Figma) Integrate mobile applications with backend services ( REST / GraphQL APIs ) Ensure high code quality, performance, and application stability Participate in mobile architecture and technical decision-making Maintain and further develop existing mobile applications Additional Responsibilities (React / Web Frontend) Develop and maintain web applications using React Implement responsive and user-friendly interfaces Collaborate on building and maintaining shared UI components Integrate frontend applications with backend services and manage application state Competences and knowledge Flutter / Mobile Strong experience with Flutter and Dart Proven experience in building mobile applications for iOS and Android Understanding of mobile application architectures (e.g. MVVM, MVC , or similar) Experience with API integration Ability to debug, optimize, and improve mobile application performance Frontend / React Strong knowledge of React and JavaScript / TypeScript Experience with modern frontend development (hooks, state management) Solid understanding of HTML and CSS (or CSS-in-JS solutions) Nice to Have Experience with publishing applications to App Store and Google Play Familiarity with CI/CD pipelines for mobile or frontend projects Experience with testing ( unit / widget / e2e ) Knowledge of Material Design guidelines Experience working in Agile / Scrum product teams Understanding of backend systems or overall system architecture Client – why choose this particular client from the Jit portfolio? Polish clothing company originating from Gdańsk is one of the notable examples of business success. Over more than thirty years of its existence, it has come a long way from a small local import company to a major player in the apparel market. Today, it operates in over 25 markets , runs a network of more than 2,000 physical stores , and is rapidly expanding its international e-commerce presence. In recent years, the company has been focusing its investments primarily on IT, which has become a key driver of its business growth. 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 Frontend Developer with strong .NET background to design and build a financial web application (Economic Profitability Calculator) in an Agile environment. The role focuses on Angular-based frontend development with backend support in .NET, ensuring high code quality and CI/CD automation. Hybrid work model with close collaboration with Product Owner and domain experts. 🗂️ Requirements: 8+ years of experience with Angular, 5+ years of experience in web development (HTML, JavaScript, TypeScript, CSS), 3+ years of experience in .NET and C# web development, 3+ years of experience with SQL, 2+ years of experience with Docker and Kubernetes, Experience with CI/CD process automation, Experience working in Agile environment, English proficiency minimum B2 level 📃 Skills: Angular, TypeScript, HTML, JavaScript, CSS, .NET, C#, SQL, Docker, Kubernetes, MSSQL, Dapper, Git, JIRA, Bamboo, Confluence, Bitbucket 🏢 Description: Salary: 900 - 1200 PLN/day on B2B Work model: elastic hybrid from Gdynia / Gdańsk (at least 2 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project We are looking for a passionate developer with a strong focus on frontend development and a background in .NET to join the Economic Profitability Calculator Team of our financial sector client. You will play a valuable role in designing and building an EPC web application, working closely with Subject Matter Experts and having a real influence on the product. Responsibilities you'll have Designing and implementing EPC business processes with a strong focus on the frontend part Ensuring code quality through high test automation coverage, code reviews, and pair programming Working in an Agile setup Cooperating closely with the Product Owner and Subject Matter Experts Maintaining and extending CI/CD process automation Expected competences and knowledge 8+ years of experience with Angular 5+ years of experience in web development ( HTML, JavaScript, TypeScript, CSS ) 3+ years of experience in .NET and C# web development 3+ years of experience with SQL 2+ years of experience with Docker and Kubernetes Technology enthusiast focused on high product quality and good UX Passion for frontend development with experience in backend development Team-player mindset Willingness to continuously improve competences Good communication skills, including communication in English (min. B2 level) Nice to have Experience with UI test automation Experience with CI/CD tools (Bamboo) Experience using an AI coding assistant Technologies you'll work with Angular TypeScript HTML JavaScript CSS .NET C# Docker Kubernetes MS SQL Server Dapper Git Atlassian Stack (JIRA, Bamboo, Confluence, Bitbucket) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

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

🏢 Summary: Senior Backend Java Developer role in a long-term project building scalable, high-performance backend systems integrated with AWS cloud services. The position focuses on clean architecture, batch processing, and containerized deployments within an agile environment. Opportunity to shape technical decisions while working on a business-critical enterprise system. 🗂️ Requirements: Minimum 8 years of experience in Java backend development, Strong proficiency in Java, Solid knowledge of PostgreSQL, Experience with database optimization, Hands-on experience with Hibernate Criteria API, Experience with Spring Boot, Experience with Spring Batch, Experience with batch processing, Practical knowledge of AWS services (ECS, S3, RDS), Experience with Docker, Knowledge of REST API design, Understanding of clean architecture principles 📃 Skills: Java, Spring, SpringBoot, SpringBatch, Hibernate, PostgreSQL, AWS, ECS, S3, RDS, Docker, REST, SQL, AI 🏢 Description: Salary: 1200 - 1600 pln/md on B2B Hybrid model : hybrid from Gdynia (2 day working from the office, final details to be discussed with the team) Why choose this offer? Be part of a development team working on a long-term project Opportunity to shape technical decisions and best practices from the start Work on a scalable, high-performance system with a strong focus on clean architecture Gain hands-on experience with cloud technologies and containerization Project This project will focus on developing scalable backend solutions for high-demand business operations, integrating cloud services, and ensuring system reliability. You will work in an agile environment with a strong emphasis on code quality, clean architecture, and performance optimization. Expected competences and knowledge Min. 8 years of experience and proficiency in Java and backend development principles Solid understanding of PostgreSQL and database optimization techniques Hands-on experience with Hibernate Criteria API for efficient data queries Experience with Docker for containerization and deployment In-depth knowledge of the Spring ecosystem ( Spring Boot, Spring Batch) Experience in batch processing using Spring Batch Practical knowledge of AWS services , including ECS, S3, and RDS Openness to adopting and working with AI tools What you'll be doing Developing new application modules based on business requirements Reviewing and improving code , ensuring high maintainability and scalability Designing and implementing efficient backend solutions Writing clean, structured, and scalable code following best practices Technologies you'll work with Java Spring (Boot, Batch) Hibernate REST API PostgreSQL AWS (ECS, S3, RDS) Docker AI Client – why choose this particular client from the Jit portfolio? We have partnered with our Client, a leading HR company with over 60 years of experience and a presence in multiple countries around the world. Our Client provides a wide range of recruitment and job placement services and is dedicated to helping individuals achieve their career goals. In Poland, our Client has been operating for over 20 years and is at the forefront of digitization in the HR services industry. Our team has been building the Time tracking system for our Client since 2019 , a complex tool for registering and settling the working time of full-time and temporary employees working under different legal and organizational conditions, supporting on-boarding processes, and integrating with the employee portal and mobile app. As a member of Jit Team, you will have the opportunity to work on a modern, complex enterprise-class system built in modern technologies such as Java and the AWS cloud . With a business-critical operation, the Work Time system settles working time for tens of thousands of employees every month and contributes to our Client's revenue. 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: Mid-level Frontend Developer role in a greenfield fintech project building a large-scale banking platform from scratch. You will design and develop web and mobile user interfaces using React, shaping frontend architecture and standards within a cross-functional international team. The position offers real impact on core frontend services and architectural decisions from day one. 🗂️ Requirements: Commercial experience in frontend development (mid-level), Hands-on experience with React, Experience building web applications, Understanding of modern frontend architecture, Ability to integrate frontend with REST APIs, Fluent English (spoken and written), Availability to work from office 3 days per week 📃 Skills: React, JavaScript, TypeScript, REST, GCP, Flutter, CI/CD, HTML, CSS 🏢 Description: Salary: 500-800 pln/md B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (3 days per week from the office) Why choose this offer? Opportunity to build a fintech platform from scratch (greenfield project) Real impact on architecture and core frontend services from day one Collaboration within a cross-functional, international team Work on a large-scale financial platform in the banking domain Project We are building a fintech platform from the ground up for a financial institution operating in the banking products space. As a Frontend Developer, you will be part of a cross-functional squad responsible for designing and developing the user-facing layer of this greenfield product . You will work within a mixed frontend-backend squad, collaborating closely with your Tech Lead, Senior Developer, Business Analyst, and QA Engineer. This is a rare opportunity to define the frontend architecture, UI patterns, and user experience of a financial platform from scratch - covering both web and mobile channels. Responsibilities you'll have Design, develop, and maintain frontend applications across web and mobile channels Build responsive, performant, and accessible user interfaces using React Collaborate within a cross-functional squad (Tech Lead, Senior Developer, BA, QA, Backend Developers) Translate business requirements and UI/UX designs into clean, maintainable frontend code Integrate frontend applications with backend APIs and services Participate in code reviews, technical discussions, and architectural decisions Write clean, testable, and well-documented code following best practices Contribute to establishing frontend standards, component libraries, and development patterns Communicate progress, blockers, and technical decisions in English Expected competences and knowledge Solid commercial experience in frontend development (mid-level) Hands-on experience with React (web applications) Fluent English (spoken and written) Availability to work from the office 3 days per week (Warsaw, Kraków, Tricity, or Rzeszów) Understanding of modern frontend architecture and best practices Nice to have: Familiarity with Google Cloud Platform (GCP) Familiarity with Flutter Experience in financial services or banking domain Experience in greenfield projects Knowledge of state management patterns, design systems, and component-driven architecture Technologies you'll work with React REST APIs GCP (optional) Modern frontend tooling and libraries CI/CD pipelines Client – why choose this particular client from the Jit portfolio? The client is a fintech institution operating in the Kingdom of Saudi Arabia, focused on modernising its digital capabilities and expanding its offering for micro-SME customers. It is an organisation with a strong market presence and a clear strategic commitment to innovation, aiming to deliver banking experiences that are fully digital, user-friendly, and deeply integrated with day-to-day business needs. 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: Frontend Architect role in a financial project focused on building secure, high-performance, interactive web applications supporting complex workflows and real-time data. The position involves shaping frontend architecture, developing Web Components, and ensuring code quality and performance across large-scale systems. Hybrid work model with strong emphasis on technical excellence and collaboration in international teams. 🗂️ Requirements: Strong expertise in HTML, CSS, JavaScript, TypeScript, Experience with Web Components and Lit, Solid understanding of Node.js and npm ecosystem, Experience writing unit tests with Vitest, Strong knowledge of frontend architecture and design patterns, Experience with performance optimization and Core Web Vitals, Ability to integrate REST and GraphQL APIs, Experience in large-scale, modular frontend codebases 📃 Skills: TypeScript, JavaScript, HTML5, CSS3, Sass, WebComponents, Lit, Node.js, npm, Vitest, Playwright, REST, GraphQL, CI/CD, GitHubActions, GitLabCI, Kafka, MQ, NinjaFork 🏢 Description: Salary: 900-1200 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (2/3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on building secure, high‑performance, and highly interactive web applications that support complex business workflows, real‑time data processing, and seamless user experiences. You’ll play a key role in shaping the frontend architecture, ensuring code quality, and driving technical excellence across the team. Responsibilities you'll have Architect and implement complex, interactive user interfaces and single‑page applications using TypeScript and JavaScript Define and maintain best practices for frontend architecture, state management, and component reusability Develop and maintain Web Components using Lit, ensuring modularity and long‑term maintainability Optimize application performance, improve Core Web Vitals, and ensure smooth experiences across devices and browsers Collaborate closely with backend engineers, UX/UI designers, and product managers to deliver end‑to‑end product features Integrate with REST and GraphQL APIs, ensuring reliability, security, and consistency of data flows. Conduct performance audits, code reviews, and mentor other developers Contribute to CI/CD pipelines and deployment workflows (nice‑to‑have) Participate in system design discussions and influence technical decisions across the product Expected competences and knowledge Strong expertise in HTML, CSS, JavaScript, TypeScript Experience with Web Components and Lit Solid understanding of Node.js and npm ecosystem Experience writing unit tests with Vitest Strong knowledge of frontend architecture, design patterns, and performance optimization Ability to work with REST/GraphQL APIs Experience in large‑scale, modular frontend codebases Strong communication skills and ability to collaborate in cross‑functional teams Technologies you'll work with TypeScript, JavaScript Web Components, Lit HTML5, CSS3, Sass Node.js, npm Vitest, Playwright (optional) REST, GraphQL CI/CD tools (GitHub Actions, GitLab CI, or similar) Kafka, MQ systems (nice‑to‑have) NinjaFork (nice‑to‑have) Client – why choose this particular client from the Jit portfolio? Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture , which is conducive to people who place emphasis on work-life balance and feedback culture . Furthermore, all projects are executed in international teams, giving constant exposure to the English language. About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts , to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams. Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

🏢 Summary: 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: 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: Junior Angular Developer role focused on migrating a legacy insurance platform to a modern frontend stack using Angular and AI-assisted development tools. The position involves working in a hybrid model in Kraków on a long-term project with strong extension potential. Most of the work centers on system migration and modernization across multiple teams. 🗂️ Requirements: Minimum 2 years of commercial frontend development experience, Strong knowledge of Angular, Strong knowledge of TypeScript, Good understanding of JavaScript fundamentals, Familiarity with AI coding assistants, Understanding of frontend testing concepts 📃 Skills: Angular, TypeScript, JavaScript, AI, Testing 🏢 Description: Salary: 300 - 500 PLN net / MD + VAT Hybrid work: Kraków (office-based, minimum 3 days per week, ideally more) Availability: Preferred ASAP (up to 14 days notice period acceptable) Project duration: Until September/November with a strong possibility of extension Why choose this offer? Opportunity to grow technically Exposure to AI-assisted development Stable project with extension potential About the role We are looking for a Junior Angular Developer to join a team working on web applications in the insurance domain. The main focus is on migrating a legacy system to a newer technological stack . The application is a configurable platform used by insurance agencies, operating between SaaS and PaaS models. Development is organized across multiple teams, each responsible for different parts of the system, with a strong focus on gradually modernizing the existing solution. You will work in an environment that combines legacy system understanding with modern frontend practices and AI-assisted development. Requirements Minimum 2 years of commercial experience in frontend development Strong knowledge of Angular and TypeScript Good understanding of JavaScript fundamentals Familiarity with AI coding assistants (e.g., tools similar to Cursor, Claude Code, Copilot) Basic understanding of frontend testing concepts (no hands-on experience required, but must understand differences and purpose of testing) English level: at least B2 Willingness to learn, grow, and work independently (not relying solely on tools) Openness to working with legacy code Basic understanding of Java is a strong plus Duties Develop and maintain frontend applications using Angular and TypeScript Participate in application migration processes and implementation of new features — with over 90% of the work focused on migration, supported by AI coding assistants Collaborate with cross-functional teams working on different parts of the system Work with AI-assisted coding tools to improve development efficiency Contribute to code quality, readability, and maintainability Support estimation and implementation tasks within the team Nice to have Experience with Angular Material, Tailwind, or Bootstrap (Note: the team primarily uses internal styling solutions and custom components) Exposure to AngularJS (not required) 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. Apply