Junior Frontend Developer

🏢 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: Hybrid developer role focused on transforming software development by embedding AI across the full SDLC. The position combines hands-on development (Java, .NET, or frontend/cloud) with building internal AI agents and automations to scale AI-driven practices across teams. The offer emphasizes real projects, measurable impact, and organization-wide AI adoption. 🗂️ Requirements: Active software developer, Strong expertise in Java or .NET or Frontend, Active daily use of AI tools in development, Understanding of full SDLC lifecycle, Ability to demonstrate measurable technical impact 📃 Skills: Java, .NET, Frontend, Cloud, AI, SDLC, Claude, Copilot, Cursor, Playwright, Agents, Automation, Prompting, Workflows 🏢 Description: Salary: 500 - 900 PLN net / MD Hybrid work: we expect a positive attitude toward working in a hybrid model . We can hire in any of our locations (Gdynia/Gdańsk, Warsaw, Rzeszów, Kraków) . Why choose this offer? A strong impact on how the entire organization works Work on real projects (not just POCs) More about this offer We are looking for a proactive developer who will help us transform the way we build software . We are creating an environment where most of the SDLC (analysis, UX, code, testing, documentation) is supported by AI (Claude Code, agents, automations). We already have teams working in this model — now we want to scale this approach across the entire organization. Requirements Active developer Strong expertise in one of the following ecosystems: Java / .NET / frontend - we expect any level of experience with these technologies Active use of AI in daily work (not just ChatGPT for “assistance”) Understanding of the SDLC end-to-end (analysis → production) Enjoyment of working with people and driving changes in how they operate Ability to demonstrate concrete impact: “I did X → result Y” Nice to have skills Experience with AI agents (e.g. Claude Code, Cursor, Copilot, etc.) Test automation experience (e.g. Playwright) Experience in measuring team productivity Experience in building internal tools / platforms Duties Work as a developer (Java / .NET / frontend / cloud) Build internal AI-based solutions (agents, workflows, automations) Join teams and help them change the way they work: demonstrate how to use AI in daily tasks, support the implementation of specific practices (code, testing, analysis, UX) Measure effectiveness (time, quality, throughput) Report the level of AI adoption in teams (usage, impact, maturity) Create and maintain standards for working with AI (prompting, agents, memory, workflows) Share knowledge and help build an internal community 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: The offer is for a proactive developer who will help scale an AI-driven software development model across the organization, combining hands-on coding with transformation initiatives. The role involves building AI-based internal tools and supporting teams in adopting AI across the full SDLC. You will work on real production projects while driving measurable improvements in efficiency and quality. 🗂️ Requirements: Active developer, Strong expertise in Java or .NET or frontend, Practical use of AI tools in daily development work, Understanding of full SDLC lifecycle, Ability to demonstrate measurable impact of delivered solutions, Willingness to work in hybrid model 📃 Skills: Java, .NET, Frontend, Cloud, AI, SDLC, Claude, Copilot, Playwright, Automation 🏢 Description: Salary: 1000-1300 PLN net / MD Hybrid work: we expect a positive attitude toward working in a hybrid model . We can hire in any of our locations (Gdynia/Gdańsk, Warsaw, Rzeszów, Kraków) . Why choose this offer? A strong impact on how the entire organization works Work on real projects (not just POCs) More about this offer We are looking for a proactive developer who will help us transform the way we build software . We are creating an environment where most of the SDLC (analysis, UX, code, testing, documentation) is supported by AI (Claude Code, agents, automations). We already have teams working in this model — now we want to scale this approach across the entire organization. Requirements Active developer Strong expertise in one of the following ecosystems: Java / .NET / frontend - we expect any level of experience with these technologies Active use of AI in daily work (not just ChatGPT for “assistance”) Understanding of the SDLC end-to-end (analysis → production) Enjoyment of working with people and driving changes in how they operate Ability to demonstrate concrete impact: “I did X → result Y” Nice to have skills Experience with AI agents (e.g. Claude Code, Cursor, Copilot, etc.) Test automation experience (e.g. Playwright) Experience in measuring team productivity Experience in building internal tools / platforms Duties Work as a developer (Java / .NET / frontend / cloud) Build internal AI-based solutions (agents, workflows, automations) Join teams and help them change the way they work: demonstrate how to use AI in daily tasks, support the implementation of specific practices (code, testing, analysis, UX) Measure effectiveness (time, quality, throughput) Report the level of AI adoption in teams (usage, impact, maturity) Create and maintain standards for working with AI (prompting, agents, memory, workflows) Share knowledge and help build an internal community 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

🏢 Summary: Hybrid developer role focused on transforming the software development lifecycle through active use of AI tools and agents across real production projects. The position combines hands-on development (Java/.NET/frontend/cloud) with driving AI adoption, automation, and process optimization within teams. The role involves building internal AI-based solutions and scaling AI-supported SDLC practices organization-wide. 🗂️ Requirements: Active software developer, Strong expertise in Java or .NET or frontend ecosystem, Active daily use of AI tools in development workflow, Understanding of full SDLC from analysis to production, Ability to demonstrate measurable impact of work, Willingness to work in hybrid model 📃 Skills: Java, .NET, Frontend, Cloud, AI, Claude, Copilot, Cursor, Playwright, SDLC, Automation 🏢 Description: Salary: 1000-1300 PLN net / MD Hybrid work: we expect a positive attitude toward working in a hybrid model . We can hire in any of our locations (Gdynia/Gdańsk, Warsaw, Rzeszów, Kraków) . Why choose this offer? A strong impact on how the entire organization works Work on real projects (not just POCs) More about this offer We are looking for a proactive developer who will help us transform the way we build software . We are creating an environment where most of the SDLC (analysis, UX, code, testing, documentation) is supported by AI (Claude Code, agents, automations). We already have teams working in this model — now we want to scale this approach across the entire organization. Requirements Active developer Strong expertise in one of the following ecosystems: Java / .NET / frontend - we expect any level of experience with these technologies Active use of AI in daily work (not just ChatGPT for “assistance”) Understanding of the SDLC end-to-end (analysis → production) Enjoyment of working with people and driving changes in how they operate Ability to demonstrate concrete impact: “I did X → result Y” Nice to have skills Experience with AI agents (e.g. Claude Code, Cursor, Copilot, etc.) Test automation experience (e.g. Playwright) Experience in measuring team productivity Experience in building internal tools / platforms Duties Work as a developer (Java / .NET / frontend / cloud) Build internal AI-based solutions (agents, workflows, automations) Join teams and help them change the way they work: demonstrate how to use AI in daily tasks, support the implementation of specific practices (code, testing, analysis, UX) Measure effectiveness (time, quality, throughput) Report the level of AI adoption in teams (usage, impact, maturity) Create and maintain standards for working with AI (prompting, agents, memory, workflows) Share knowledge and help build an internal community 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: 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: 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: 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.

🏢 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: 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: Full-stack role focused on building and maintaining scalable web and mobile applications using React/React Native on the frontend and Java-based backend services within a microservices architecture. The position involves end-to-end feature development, REST API design, and ensuring performance, security, and scalability in a production environment. You will contribute to CI/CD, deployments, and continuous platform improvements in a modern tech stack. 🗂️ Requirements: 6+ years full-stack development experience, Strong experience with React or React Native, Strong command of Java, Experience building REST APIs, Experience with HTTP protocols, Understanding of frontend architecture and state management, Experience with SQL and NoSQL databases (PostgreSQL, MongoDB, Redis), Knowledge of CI/CD pipelines and deployment processes, Experience with microservices architecture 📃 Skills: Java, React, ReactNative, Node.js, REST, HTTP, SQL, PostgreSQL, MongoDB, Redis, Microservices, CI/CD, AWS, Azure, GCP, Docker, Kubernetes 🏢 Description: Salary: 1000-1300 pln/md on B2B Work mode: Elastic hybrid from Gdynia/Gdańsk (1-2 days per week from the office) Why choose this offer? End‑to‑end ownership w ith a modern tech stack Stability combined with continuous growth Autonomy and high‑quality collaboration Project The project focuses on building and maintaining scalable web and mobile applications used by a large and diverse user base. It involves developing modern, user‑friendly interfaces with React or React Native and integrating them with robust backend services built in Java . The system is based on RESTful APIs and microservices architecture, ensuring high performance, security, and scalability. You will work closely with product, design, and QA teams to continuously improve the platform and deliver high‑quality features to production. Responsibilities you'll have Design and develop responsive web and mobile applications using React or React Native Build and maintain backend services and APIs using Java (preferred) or Node.js Develop reusable components, modules, and libraries Design and implement RESTful APIs and microservices Integrate front-end applications with backend systems and third-party services Ensure application performance, scalability, and security Collaborate with cross-functional teams including designers, product managers, and QA Participate in code reviews and maintain code quality standards Support deployment, CI/CD pipelines, and production releases Expected competences and knowledge Over 6 years of experience in full-stack development Good experience with React or React Native Strong command of Java Experience building REST APIs and working with HTTP protocols Understanding of frontend architecture, state management, and component-based design Solid level of SQL / NoSQL (Postgres, Mongo, Redis) Knowledge of CI/CD pipelines and deployment processes Strong problem-solving and analytical skills Good command of AI-powered coding and trust in AI Strong communication and collaboration skills Ability to work independently and within a team Attention to detail and commitment to quality Ability to manage multiple tasks and priorities Adaptability and willingness to learn new technologies Nice to have Experience with microservices architecture Familiarity with cloud platforms (AWS, Azure, or GCP) Experience with containerization (Docker, Kubernetes) Knowledge of testing frameworks and automated testing Experience with mobile app deployment (App Store / Google Play) Technologies you'll work with Java React React Native REST APIs HTTP SQL (PostgreSQL) NoSQL (MongoDB, Redis) Node.js Microservices CI/CD pipelines AWS/Azure/GCP Docker Kubernetes App Store/Google Play AI 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.