Danfoss - Lead Frontend Developer

🏢 Summary: Senior Frontend Developer role focused on stabilizing and developing a complex cross-platform application built with React and Electron, integrating web, desktop, and embedded environments with hardware devices via proprietary protocols. The position involves architectural contributions, code refactoring, and close collaboration with backend and hardware teams in a technically demanding environment. Remote work with occasional on-site presence in Rzeszów. 🗂️ Requirements: Senior-level experience as Frontend Developer, Advanced knowledge of React, Advanced knowledge of JavaScript, Experience with Electron, Experience integrating applications with hardware or devices, Understanding of cross-platform systems (web, desktop, embedded), Ability to work with low-level or proprietary communication protocols, Experience analyzing and refactoring complex systems, Good understanding of backend architecture and collaboration 📃 Skills: React, JavaScript, TypeScript, Electron, IoT, Embedded, Protocols, Web, Desktop 🏢 Description: Salary: 1100-1150 PLN/day on B2B Remote: remote / hybrid Rzeszów (2 days from the office per week) Why choose this offer? Development and maintenance of a frontend application based on React and JavaScript Support in stabilizing the existing solution and identifying architectural issues Working with system–device communication (client’s proprietary protocol) Development of a desktop application based on Electron Collaboration with backend and hardware/embedded teams Analysis and refactoring of code shared across web, desktop, and embedded environments Contribution to designing the solution architecture in a cross-platform environment Supporting the team in making technical and architectural decisions Project We are looking for an experienced Senior Frontend Developer to support the team in stabilizing and further developing an existing web application that integrates with hardware via a dedicated network protocol. The project is complex in nature—the application communicates with hardware devices, and part of the codebase has been designed in a universal way, enabling its use across web, desktop, and embedded environments. Therefore, a strong understanding of such systems and experience working at the intersection of software and hardware are essential. Expected competences and knowledge Very strong experience as a Frontend Developer (Senior / Lead) Advanced knowledge of React and JavaScript (TypeScript is a plus) Experience working with Electron Experience working with applications integrating with devices / hardware (e.g., IoT, embedded systems, device communication) Understanding of challenges related to cross-platform systems (web / desktop / embedded) Ability to work with more “low-level” system communication logic (proprietary or similar protocols) Experience in analyzing and refactoring existing, complex systems Good understanding of backend (in terms of collaboration and architecture) Ability to work in a highly complex technical environment Technologies you'll work with React JavaScript TypeScript Electron Client – why choose this particular client from the Jit portfolio? Our Client engineers technologies that enable the world of tomorrow to do more with less. They meet the growing need for infrastructure, food supply, energy efficiency and climate-friendly solutions . Their products and services are used in areas such as refrigeration, air conditioning, heating, motor control and mobile machinery. They are also active in the field of renewable energy as well as district heating infrastructure for cities and urban communities. Their innovative engineering dates back to 1933 and today our Client is a world-leader , employing more than 27,000 employees and serving customers in more than 100 countries . They are still privately held by the founding family. 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 Tech Lead role focused on driving technical strategy and hands-on development of React-based web applications, with strong ownership of frontend architecture and AI-driven interfaces. The position combines leadership, product thinking, and close collaboration with design and product teams to deliver scalable, user-friendly solutions. You will shape frontend standards, mentor engineers, and lead integration of intelligent features into modern web platforms. 🗂️ Requirements: Strong hands-on experience with React, Expertise in JavaScript and TypeScript, Experience leading frontend architecture in production environments, Experience with state management solutions, Knowledge of responsive design and accessibility, Experience with frontend performance optimization, Familiarity with backend technologies and APIs, Experience with Git and collaborative workflows, Experience or strong interest in AI frameworks and AI-powered features, English proficiency at C1 level or higher 📃 Skills: React, JavaScript, TypeScript, Redux, ReactQuery, Zustand, ReactNative, Git, Java, AI 🏢 Description: Salary: 1200 - 1600 pln/md B2B Location: Warszawa/ Gdynia/ Kraków (elastic hybrid) Why choose this offer? Work with a top-tier international product company driving digital transformation in the infrastructure space Real ownership of the product, not just ticket delivery Scandinavian culture : autonomy, transparency, flexibility Direct influence on business direction and user-facing functionality Strategic, client-facing role: your voice matters Project As a Frontend Tech Lead , you'll drive the innovation and evolution of our frontend platform, working primarily with React and our web-based applications. You’ll play a key role in defining frontend technical strategy and architecture , while remaining hands-on with code. You'll work closely with the design and product teams to ensure complex construction workflows are intuitive and engaging for our users. This role combines strong frontend engineering expertise with technical leadership and product thinking . As the client expands their AI capabilities, you'll lead the frontend efforts in creating intelligent, user-friendly interfaces that make AI features accessible to construction professionals, while guiding the team toward scalable and maintainable solutions. What you'll be doing Drive frontend innovation and evolution of our React-based applications, setting technical direction for our user interfaces Champion user experience by creating intuitive, responsive interfaces that make complex construction workflows simple Act as a frontend technical leader , supporting and guiding engineers through code reviews, architectural discussions, and best practices Lead AI interface integration by designing and implementing user-friendly AI features and interactions Collaborate with design and product teams to translate user needs into exceptional frontend experiences Take ownership of frontend architecture decisions and ensure code quality and performance Navigate our technology landscape with focus on React , modern JavaScript , and frontend tooling Mentor and support Frontend Engineers in modern development techniques, frontend architecture, and AI-assisted programming Participate in technical planning and architectural decisions affecting the frontend platform Shape our frontend future by evaluating new technologies and proposing improvements to our development processes Expected competences and knowledge Problem-solving mindset : You enjoy tackling complex technical and architectural challenges Ownership mentality : You take responsibility not only for your work, but also for the overall frontend quality High agency : You proactively identify technical risks and opportunities and drive solutions forward Leadership mindset : You enjoy guiding others, sharing knowledge, and raising the technical bar of the team Growth orientation: You continuously learn and help others grow alongside you AI enthusiasm: You’re interested in leveraging AI to improve both user experience and developer productivity Strong communication skills : You clearly articulate technical decisions to engineers, product managers, and designers Product thinking : You care deeply about the impact of frontend solutions on users and the business Adaptability : You're comfortable working across the stack when needed and navigating evolving requirements Collaborative approach : You foster healthy team dynamics and constructive technical discussions English proficiency: C1 or higher – you communicate confidently in English in both technical and business contexts Technical Skills Strong, hands-on experience with React and modern frontend development Expertise in JavaScript, TypeScript, and modern frontend tooling Experience leading or owning frontend architecture in production environments Commercial experience with React Native (nice to have) Solid understanding of responsive design, accessibility, and cross-browser compatibility Experience with state management solutions (Redux, React Query, Zustand, etc.) Strong knowledge of frontend performance optimization and best practices Familiarity with backend technologies (Java) and APIs for effective full-stack collaboration Experience with version control systems (Git) and collaborative development workflows Familiarity with AI frameworks and tools, or strong interest in developing expertise in this area Experience with AI-assisted programming and implementing AI-powered features is a plus Client – why choose this particular client from the Jit portfolio? Our client is an innovative, international technology company operating in the proptech and construction tech sectors. Their mission is to make building projects more collaborative and efficient worldwide. They have created a modern cloud platform that enables effective management of project data throughout the entire building lifecycle – from planning and design, through construction, to maintenance. The company operates globally and collaborates with leading partners in the architecture, engineering, and construction industries. Its solutions are built on open standards , ensuring smooth integration with other tools and easy access to information for all project participants 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: Tech Lead role in a greenfield fintech platform within the banking domain, responsible for shaping architecture and leading a cross-functional team. The position combines hands-on Java development with architectural decision-making in a microservices, event-driven environment. You will drive backend technical direction while collaborating closely on frontend integrations. 🗂️ Requirements: 7+ years commercial software development experience, Proven experience in Tech Lead role, Strong hands-on experience with Java, Strong knowledge of Spring ecosystem (Spring Boot, Spring MVC, Spring Cloud), Experience with microservices architecture, Experience with event-driven architectures, Practical experience with PostgreSQL or other relational databases, Understanding of frontend architectures (React and/or Flutter), Very good knowledge of fullstack application architecture, Experience with distributed systems, Fluent English 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringCloud, PostgreSQL, Microservices, EventDriven, React, Flutter, SQL, DistributedSystems 🏢 Description: Salary: 1300 - 1600 PLN/MD on B2B Remote: hybrid from Gdynia / Gdańsk / Warszawa / Rzeszów / Kraków (2 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 new fintech platform from the ground up for a financial institution operating in the banking products space . As a Tech Lead , you will own the technical direction of a cross-functional squad (developers, QA Engineer, Business Analyst) and ensure high-quality delivery across both backend and frontend layers . This is a hands-on leadership role - you will split your time between coding, architectural decision-making, and mentoring the team. The project is fully greenfield, giving you the opportunity to shape architecture, development standards, and engineering culture from day one. Each Tech Lead works closely with a Delivery Manager (shared across several teams). Responsibilities you'll have: Lead a cross-functional team through the full delivery lifecycle Own the squad’s technical direction, primarily on the backend , with awareness of frontend implications Design and evolve system architecture in a microservices and event-driven environment Ensure high code quality through reviews, standards, and best practices Collaborate with the Delivery Manager and Business Analyst to translate business needs into technical solutions Align with other Tech Leads to ensure architectural consistency across teams Identify, communicate, and mitigate technical risks and dependencies Contribute hands-on to development on a regular basis Communicate technical decisions and trade-offs clearly in English Expected competences and knowledge Minimum 7+ years of commercial experience in software development Proven experience in a Tech Lead role Strong hands-on expertise in Java and the Spring ecosystem (Spring Boot, Spring MVC, Spring Cloud) Understanding of frontend and client-side architectures , with exposure to React and/or Flutter (ability to collaborate efficiently with frontend/mobile developers, review high-level solutions, understand integration points and trade-offs) Very good understanding of fullstack application architecture Experience with event-driven architectures (message brokers, asynchronous communication, events) Practical knowledge of PostgreSQL or similar relational databases Experience working with microservices and distributed systems Strong mentoring and technical leadership skills Fluent English (spoken and written) Nice to have: Hands-on or architectural experience with React and/or Flutter Experience with Kafka or similar messaging/streaming platforms Familiarity with Google Cloud Platform (GCP) Experience with Kubernetes and containerized deployments Background in fintech or banking projects Experience building and scaling greenfield systems Technologies you'll work with Java Spring (Boot, MVC, Cloud) PostgreSQL Microservices Event-driven architecture Nice to have: React Flutter Kafka GCP Kubernetes 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: 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-time, 100% remote Senior Frontend Developer role focused on building and scaling complex, responsive web applications powered by AI-driven platforms. The position involves architecting high-quality front-end solutions, integrating with back-end services, and ensuring performance, scalability, and cross-browser compatibility. The role also includes driving best practices, code quality, and modern front-end standards within the team. 🗂️ Requirements: Strong knowledge of HTML5, CSS3, JavaScript (ES6), Strong understanding of DOM, Experience with React.js, Experience with Material UI, Experience with Responsive Design and cross-browser compatibility, Familiarity with SASS or LESS, Understanding of BEM methodology, Knowledge of CSS-in-JS, Knowledge of browser storage (cookies, localStorage, sessionStorage), Proficiency with npm or yarn, Experience with Jest or equivalent testing frameworks, Understanding of SEO best practices, Familiarity with TypeScript, Knowledge of SSR and service workers, Experience with Webpack, Vite, or Rollup, Understanding of browser extensions integration 📃 Skills: HTML5, CSS3, JavaScript, ES6, DOM, React, MaterialUI, SASS, LESS, BEM, CSS-in-JS, cookies, localStorage, sessionStorage, npm, yarn, Jest, TypeScript, SSR, Webpack, Vite, Rollup, SEO, ServiceWorkers 🏢 Description: Senior Frontend Developer (100% remote) 💰 Salary: 20,000-23,000 PLN/month 🌎 100% Remote 🕦 Full-time position ☑️ B2B or Contract of Employment We are looking for a Senior Frontend Developer for a partner client that helps businesses use artificial intelligence to run more efficiently and grow faster. The company builds and provides digital platforms and consulting services that enable organizations to manage operations, analyze data, and improve performance. Their solutions combine AI, automation, and deep business expertise to help clients simplify workflows, gain insights, and deliver greater value. Requirements: HTML5 , CSS3 , JavaScript (ES6) Strong understanding of the Document Object Model (DOM) Skilled in Responsive Design and cross-browser compatibility Experience with React.js and Material UI Familiarity with CSS preprocessors such as SASS or LESS Understanding of BEM methodology and CSS-in-JS approaches Knowledge of browser storage mechanisms (cookies, localStorage, sessionStorage) Proficient in using package managers (npm/yarn) Experience in unit testing using Jest or equivalent frameworks Understanding of SEO best practices Familiarity with TypeScript for type-safe, large-scale applications Knowledge of server-side rendering (SSR) and service workers Experience with code bundling and modern module bundlers (e.g., Webpack, Vite, Rollup) Understanding of browser extensions and their integration with web applications Responsibilities: Develop and maintain  complex, responsive user interfaces for large-scale web applications. Architect and integrate front-end components with back-end APIs and services , ensuring security, scalability, and performance. Drive the implementation of pixel-perfect UI/UX designs across browsers and devices. Provide technical mentorship to junior developers and guide the team in adopting modern best practices. Conduct code reviews , enforce standards, and maintain a clean, modular codebase. Evaluate and recommend new frameworks, tools, and libraries to enhance productivity. Manage project timelines, estimate development efforts, and collaborate effectively with cross-functional teams. Maintain comprehensive front-end documentation , design patterns, and style guides. Stay updated with industry trends , emerging technologies, and front-end innovations to continuously improve team capabilities. Participate in architectural discussions , ensuring long-term scalability and maintainability of the front-end ecosystem. Get to know DevsData We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com

🏢 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: 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.

🏢 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 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.