Senior React Developer – Banking

🏢 Summary: Senior React Developer role focused on building and optimizing modern, scalable web applications using cutting-edge front-end technologies in a hybrid work model. The position involves collaborating with cross-functional teams, implementing micro front-end architectures, and ensuring high-quality code through modern testing practices. It offers the opportunity to drive innovation and continuously enhance technical expertise. 🗂️ Requirements: 5+ years of experience in front-end web development, Strong expertise in React, Strong expertise in TypeScript, Experience with testing frameworks (Jest, Cypress, or Playwright), Experience building responsive, scalable web applications, Familiarity with micro front-end architecture, Knowledge of reactive programming (RxJS), Experience with modern build tools, Experience working in Agile SDLC environments, Legal right to work in the European Union 📃 Skills: React, Angular, TypeScript, JavaScript, Jest, Cypress, Playwright, RxJS, Webpack, Vite, Vitest, SSR, CSS-in-JS, HTML, CSS 🏢 Description: Unleash the Future of Web Applications — Drive Innovation with Cutting-Edge Front-End Technologies! Warsaw-based opportunity with hybrid work model As a Senior Front-End Developer , you will be working for our client, a leader in web application innovation within the technology industry. You’ll contribute to building and executing challenging projects across a variety of initiatives, collaborating closely with stakeholders, UX designers, and development teams to transform requirements into high-impact deliverables. This role offers a unique chance to learn new technologies and continually elevate your skills while shaping the future of digital experiences. Your main responsibilities: Develop and maintain modern, dynamic web applications using React, Angular, and TypeScript. Collaborate with cross-functional teams to translate user requirements into clean, scalable code. Implement best practices in testing using Jest, Cypress, or Playwright to ensure quality and performance. Integrate micro front-end architectures and reactive programming techniques such as RxJS. Optimize applications for maximum speed, scalability, and responsiveness. Contribute to code reviews, documentation, and continuous improvement processes. Leverage modern build tools like Webpack and Vite to streamline development workflows. Stay updated on industry trends and introduce innovative solutions to technical challenges. You're ideal for this role if you have: 5+ years of hands-on experience in front-end web development. Strong expertise in React, Angular, TypeScript, and testing frameworks like Jest, Cypress, or Playwright. Proven ability to deliver rich, responsive web applications with clean code. Familiarity with micro front-end architectures and reactive programming, particularly RxJS. Experience working in agile SDLC environments, including research, design, and engineering phases. Excellent communication skills and ability to manage multiple projects simultaneously. Self-motivated, innovative mindset with strong organizational skills. It is a strong plus if you have: (optional) Bachelor's degree in Computer Science or related field. Experience with SSR, CSS-in-JS, Vite, Vitest, and Webpack. Knowledge of micro front-end development and advanced build pipelines. Language Required for the role: Fluent Polish and English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Developer role focused on building scalable, high-quality web applications in a hybrid Warsaw-based setup. The position involves leading complex front-end initiatives, collaborating with cross-functional teams, and driving technical excellence across multiple projects. The offer targets an experienced full-stack professional with strong expertise in modern web technologies. 🗂️ Requirements: 5+ years experience in full-stack web application development, Strong expertise in React, Experience with Angular, Proficiency in Typescript, Experience with clean code practices, Experience with testing methodologies, Experience working in Agile environments, Communicative English (spoken and written), Legal right to work in the European Union 📃 Skills: React, Angular, Typescript, JavaScript, HTML, CSS, RxJS, Webpack, Vite, Agile 🏢 Description: Ignite innovation in web development — shape the future of dynamic web applications! Warsaw-based opportunity with hybrid work model As a Senior React Developer — Web Applications Expert , you will be working for our client, a leading player in the tech industry, driving the creation of cutting-edge web solutions. Join a team dedicated to transforming ideas into impactful digital experiences and pushing the boundaries of technology. Your main responsibilities: Collaborate with stakeholders, UX designers, and cross-functional teams to translate requirements into scalable, high-quality web applications. Lead the development and execution of complex projects across multiple initiatives, ensuring timely delivery. Continuously learn and apply new technologies to improve products and maintain industry-leading innovation standards. Solve complex technical challenges with innovative solutions that align with a long-term vision. Implement best practices in code quality, testing, and documentation to uphold excellence and maintainability. You're ideal for this role if you have: 5+ years of hands-on experience in full-stack web application development. Strong expertise in modern front-end technologies, especially React (mandatory), Angular, and Typescript. Proven ability to work with clean coding practices and testing methodologies. Experience in fast-paced, agile environments with multiple projects running concurrently. Excellent interpersonal, communication, and organizational skills. Self-motivated, proactive, with analytical thinking, innovation, and curiosity. It is a strong plus if you have: (optional) Bachelor’s degree in Computer Science or related field. Experience with micro front-ends and reactive programming frameworks like RxJS. Knowledge of front-end build tools such as Webpack and Vite. Background working within delivery-driven Agile SDLC processes. Language Required for the role: Communicative English — strong spoken and written skills. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Angular Frontend Developer role focused on building and enhancing complex, scalable web applications in a hybrid work model. The position combines advanced Angular frontend development with Java-based backend integration and automated testing. You will work in Agile teams to deliver high-quality, user-centric digital products. 🗂️ Requirements: 5+ years of frontend development experience with Angular, 3+ years of experience with Java, Spring, Maven, JUnit, Strong knowledge of NgRx, TypeScript, JavaScript, HTML, CSS, Experience with Karma and Jasmine testing frameworks, Experience with Git version control, Knowledge of design patterns, SOLID principles, Clean Code, Experience designing and implementing automated tests, Experience working in Agile/Scrum environment, English level B2 or higher, Polish communicative level, Legal right to work in the European Union 📃 Skills: Angular, TypeScript, JavaScript, HTML, CSS, NgRx, Karma, Jasmine, Java, Spring, Maven, JUnit, Git, SOLID, CleanCode, REST, Agile, Scrum 🏢 Description: Unleash digital innovation — create transformative frontends that redefine user experiences! Warsaw-based opportunity with hybrid, remote work model (up to 5 days remote per week) As a Senior Angular Frontend Developer , you will be working for our client, a leading company in the tech industry committed to delivering cutting-edge digital solutions. You will play a pivotal role in developing, maintaining, and enhancing complex frontend applications, bridging creative design with robust functionality, and supporting impactful product launches. This role offers a unique chance to elevate your career within a dynamic team focused on innovation and excellence. Your main responsibilities: Collaborate with cross-functional teams to develop scalable, high-quality Angular applications. Build responsive, user-centric interfaces using Angular, TypeScript, HTML, and CSS. Develop backend API layers in Java for seamless frontend integration. Participate in code reviews, ensuring code quality, security, and maintainability. Design and implement automated tests (unit, integration, end-to-end) to ensure product stability. Engage actively in Agile/Scrum processes, including sprint planning, stand-ups, and retrospectives. You're ideal for this role if you have: 5+ years of experience in frontend development, specializing in Angular. Strong expertise with NgRx, Karma/Jasmine, TypeScript, JavaScript, HTML, and CSS. At least 3 years of experience with Java, Spring, Maven, and JUnit. Hands-on practical knowledge of Git version control. Good understanding of design patterns, SOLID principles, and Clean Code practices. Proficiency in English at least B2 level. It is a strong plus if you have: (optional) Experience working in fast-paced Agile/Scrum environments. Additional certifications or skills in automation testing or cloud technologies. Language required for the role: Polish (Communicative level) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Frontend Developer role focused on building and enhancing high-performance web applications using React and TypeScript, with strong emphasis on UI/UX quality. The position involves leading UI improvements, contributing to front-end architecture, and implementing scalable, maintainable solutions in a hybrid work model. You will drive user experience innovation while ensuring application stability and performance. 🗂️ Requirements: Minimum 5 years of experience with React in production environments, Strong proficiency in React and TypeScript, Experience in UI/UX design and prototyping, Ability to design scalable front-end architecture, Knowledge of SDLC processes, Experience with CI/CD practices, Fluent English, Legal right to work in the European Union 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, UI, UX, SDLC, CI, CD, DevOps, REST, APIs, Wireframing, Prototyping 🏢 Description: Ignite innovative front-end solutions — shape the future of user experiences with cutting-edge React and TypeScript expertise. Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior React & TypeScript Frontend Developer – UI/UX Focus , you will be working for our client, a forward-thinking tech company dedicated to delivering exceptional digital experiences. You will lead UI enhancements, participate in architecture design, and implement best-in-class solutions to elevate application usability and stability, playing a pivotal role in redefining user interactions and visual appeal. Your main responsibilities: Lead UI changes and improvements to enhance overall UX and application performance Participate in front-end architecture design to ensure scalable and maintainable solutions Implement solutions following best Design Patterns for robust application development Analyze requirements thoroughly to suggest improvements and optimizations Manage changes throughout the service management lifecycle effectively Develop and validate application prototypes to test concepts and designs Provide exceptional customer support by promptly addressing and resolving issues Communicate clearly with clients to understand needs and deliver tailored solutions You're ideal for this role if you have: A minimum of 5 years of experience in production applications development within the React ecosystem, including UI/UX design Strong proficiency in React and TypeScript for building dynamic, interactive, high-performance web applications Experience translating product requirements into wireframes and high-fidelity prototypes Familiarity with the Software Development Life Cycle (SDLC) — requirements gathering, design, development, testing, deployment, and maintenance Excellent problem-solving skills and meticulous attention to detail Experience with DevOps practices like continuous integration and continuous delivery It is a strong plus if you have: (optional) Certifications in React, TypeScript, or UI/UX design Experience with modern frontend testing frameworks Knowledge of back-end integration and RESTful APIs Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER

🏢 Summary: Senior Frontend React Developer role focused on building and optimizing advanced UI applications with generative AI features in an enterprise environment. The position involves collaborating with cross-functional teams to deliver high-quality, user-centric solutions and integrating CI/CD and AI operational workflows. Hybrid work model based in Warsaw. 🗂️ Requirements: 4+ years of experience in React development, 4+ years of experience in JavaScript development, Strong knowledge of DevOps practices, Hands-on experience with Jira, Hands-on experience with GitLab, Hands-on experience with OpenShift, Proficiency in Linux, Experience with unit testing, Experience with system testing, Fluent Polish, Fluent English, Legal right to work in Europe 📃 Skills: React, JavaScript, DevOps, Jira, GitLab, OpenShift, Linux, CI/CD, Agile, Scrum, AI, Testing 🏢 Description: Empower innovation at the forefront of UI and AI technology — craft impactful user experiences that shape the future! Warszawa-based opportunity with hybrid work model (up to 2 remote days per week). As a Senior Frontend React Developer , you will be working for our client, a leader in enterprise software solutions, focusing on delivering cutting-edge UI and generative AI services. Join a collaborative, agile team committed to creating high-quality, user-centric applications that drive digital transformation and innovation. Your main responsibilities: Develop and optimize complex frontend applications using React and JavaScript, ensuring seamless user experiences Collaborate with cross-functional teams including data scientists and DevOps to deliver innovative UI solutions, including generative AI features Confirm technical designs, troubleshoot issues, and implement best practices for code quality and performance Contribute to the integration of CI/CD pipelines and operational workflows involving AI services Participate actively in Agile/Scrum ceremonies, promoting effective teamwork and continuous improvement You're ideal for this role if you have: 4+ years of proven experience in React and JavaScript development Strong understanding of DevOps practices with hands-on experience using Jira, GitLab, and OpenShift Proficiency in Linux OS and performing unit and system testing Excellent command of English, both written and spoken Ability to independently deliver high-quality code and confirm technical designs It is a strong plus if you have: (optional) Experience working with financial data, including Market Data and Reference Data Full-stack development expertise Knowledge of CI/CD pipelines and generative AI operational workflows Language Required for the role: Fluent in Polish and English Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Front-End Developer role focused on building and maintaining scalable platform-wide React libraries and design system components for a major financial institution. The position involves developing reusable front-end solutions, ensuring quality through testing, and supporting product teams with platform integration. It emphasizes performance, accessibility, and high engineering standards within a hybrid work model. 🗂️ Requirements: 5+ years of experience in front-end development with React, Strong expertise in JavaScript and TypeScript, Experience building and maintaining scalable front-end applications and NPM packages, Experience with unit and end-to-end testing, Proficient use of Git including advanced branch and commit management, Knowledge of accessibility standards and WCAG, Experience with Jira, Confluence, and Bitbucket, Good command of Polish and communicative English, Legal right to work in the European Union 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, Testing, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, ReactNative, Capacitor, WebView 🏢 Description: Empower innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model As a Senior React Front-End Developer – Platform Integration and Design Systems , you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation. Your main responsibilities: Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System. Implement and optimize generic functionalities and innovative technical solutions for front-end teams. Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables. Ensure consistency, performance, and accessibility standards are upheld across all solutions. Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices. Provide technical guidance and support to product teams utilizing the platform solutions. Maintain clear and detailed documentation for developed components and functionalities. You're ideal for this role if you have: Over 5 years of professional experience in front-end development with React. Strong expertise in JavaScript, TypeScript, NPM, and CSS. Proven experience in building and maintaining scalable front-end applications and NPM packages. Strong knowledge of unit and end-to-end testing (e.g., Jest, Testing Library, Cypress). Proficient use of the Git version control system, including managing branches and commits (rebase, cherry-pick, revert, squash, changing commit order and descriptions). Good understanding of accessibility principles (a11y), WCAG standards, and building accessible interfaces. Experience working with Jira, Confluence, and Bitbucket. It is a strong plus if you have: Experience working with design systems or contributing to their development. Knowledge of microfrontend architecture and integration challenges. Experience with hybrid mobile applications such as React Native, Capacitor, or WebView. Familiarity with AI tools or agents in software development projects. Language required for the role: Good command of Polish and Communicative English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior React Front-End Developer role focused on building and maintaining scalable, platform-wide React libraries and components for a financial services environment. The position involves delivering high-quality, accessible, and performance-optimized front-end solutions aligned with a design system. You will collaborate with cross-functional teams to enhance shared components and support product teams with robust platform solutions. 🗂️ Requirements: 5+ years React frontend development experience, Strong JavaScript and TypeScript expertise, Experience building scalable frontend applications, Experience creating and maintaining NPM packages, Proficiency in unit and E2E testing, Advanced Git version control skills, Knowledge of WCAG accessibility standards, Experience with Jira Confluence Bitbucket, Good Polish and communicative English, Legal right to work in the EU 📃 Skills: React, JavaScript, TypeScript, NPM, CSS, Jest, TestingLibrary, Cypress, Git, WCAG, Jira, Confluence, Bitbucket, Microfrontend, ReactNative, Capacitor, WebView 🏢 Description: Unleash innovation at scale — shape the future of front-end technology! Warszawa-based opportunity with hybrid work model (2 days from the office) As a Senior React Front-End Developer – Financial Services , you will be working for our client, a leading financial institution, delivering robust and scalable front-end solutions. Join a team committed to building advanced platform components that empower seamless user experiences and drive digital transformation. Your main responsibilities: Develop and maintain platform-wide React libraries and components aligned with the Bank’s Design System. Implement and optimize generic functionalities and innovative technical solutions for front-end teams. Write and sustain comprehensive unit and end-to-end tests to ensure high-quality deliverables. Ensure consistency, performance, and accessibility standards are upheld across all solutions. Collaborate with cross-functional platform teams and UI/UX designers to refine components and share best practices. Provide technical guidance and support to product teams utilizing the platform solutions. Maintain clear and detailed documentation for developed components and functionalities. You're ideal for this role if you have: Over 5 years of professional experience in front-end development with React. Strong expertise in JavaScript, TypeScript, NPM, and CSS. Proven experience in building and maintaining scalable front-end applications and NPM packages. Excellent command of writing and maintaining unit and E2E tests (e.g., Jest, Testing Library, Cypress). Proficiency in Git version control, including branch management and advanced operations (rebase, cherry-pick, revert, squash). Good understanding of Web Accessibility (WCAG standards) and inclusive design principles. Experience working with Jira, Confluence, and Bitbucket. It is a strong plus if you have: Experience working with design systems or contributing to their development. Knowledge of microfrontend architecture and integration challenges. Experience with hybrid mobile applications such as React Native, Capacitor, or WebView. Familiarity with AI tools or agents in software development projects. Language required for the role: Good command of Polish and Communicative English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. We offer you: ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions. Enhance your skills and develop your expertise in various industries. Work on the most strategic projects available in the market. Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years. Participate in Social Events, training, and work in an international environment. Access to attractive Medical Package. Access to Multisport Program. Access to Pluralsight. Flexible hours & remote work. You can report violations in accordance with ITDS’s Whistleblower Procedure available here . Ref. number 8871

🏢 Summary: Senior ReactJS UI Engineer role focused on leading front-end architecture and UX optimization for scalable, high-performance web applications. The position involves driving UI enhancements, implementing design patterns, and delivering robust React-based solutions in a hybrid work model. You will collaborate across teams to build stable, user-centric applications used globally. 🗂️ Requirements: 7+ years experience in production React ecosystem applications, Strong proficiency in React and TypeScript, Commercial experience in web development, Experience translating requirements into wireframes and high-fidelity prototypes, Solid understanding of SDLC, Experience with front-end architecture and Design Patterns, Strong troubleshooting and problem-solving skills, Familiarity with CI/CD and DevOps practices 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, SDLC, CI/CD, DevOps, UX, UI, Architecture, Prototyping, Wireframing, DesignPatterns 🏢 Description: Unleash innovation in front-end development — shape the future of seamless UI experiences! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior ReactJS UI Engineer – Front-End Architecture & UX Optimization , you will be working for our client, a leading technology company focused on delivering cutting-edge web applications. You will drive UI enhancements, architect scalable front-end solutions, and optimize user experience to ensure high performance and stability across platforms—contributing to innovative projects that impact users worldwide. Your main responsibilities: Lead UI enhancements and improvements to elevate overall UX and application stability Participate in designing robust front-end architecture aligned with best practices Implement solutions utilizing proven Design Patterns for scalable and maintainable code Analyze requirements thoroughly to suggest improvements and optimizations Manage changes effectively throughout the Service management lifecycle Develop and prototype application features to validate concepts and designs Provide prompt and effective support to address and resolve user issues Collaborate with cross-functional teams to deliver high-quality solutions You're ideal for this role if you have: 7+ years of professional experience in production React ecosystem applications, including UI/UX design Strong proficiency in React and TypeScript Web development Proven experience in translating product requirements into wireframes and high-fidelity prototypes Solid understanding of the Software Development Life Cycle (SDLC) Exceptional troubleshooting and problem-solving skills in high-pressure environments Familiarity with DevOps practices like CI/CD pipelines It is a strong plus if you have: (optional) Experience with modern UI design tools and frameworks Certifications related to React, TypeScript, or Front-End architecture Language Required for the role: Fluent English command, both written and spoken Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER

🏢 Summary: Offer for an experienced React FrontEnd Developer to design and build responsive, high-performance user interfaces in a hybrid model in Warsaw. The role focuses on developing modern web applications using React and related technologies, with strong emphasis on testing, accessibility, and performance optimization. The position involves close collaboration with cross-functional teams to deliver robust, user-centric digital products. 🗂️ Requirements: 6+ years of experience in JavaScript development, 6+ years of experience in TypeScript development, Commercial experience with React.js, Experience with Redux, Hands-on experience with HTML5, Hands-on experience with CSS3, Ability to write cross-browser compatible code, Understanding of object-oriented programming concepts and design patterns, Knowledge of functional programming paradigms, Understanding of asynchronous programming, Experience with TDD, Experience with continuous integration, Knowledge of Git and branch management, Experience with front-end debugging tools, Experience working in Agile methodology 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, OOP, FP 🏢 Description: React FrontEnd Developer IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage. Role Overview We are seeking a skilled React FrontEnd Developer to design and develop responsive user interfaces. In this role, you will collaborate with cross-functional teams to deliver robust, user-centric solutions while driving best practices in testing, accessibility, and performance optimization. Key Responsibilities UI Development: Designing and developing responsive user interfaces using React Testing & Integration: Implementing and maintaining TDD in applications and continuous integration. Driving best practices in testing, accessibility, and performance optimization. Collaboration: Collaborating with a cross-functional team of project managers, project analysts, and sales staff to deliver high-quality, interactive products on time. Collaborating cross-functionally with design, backend, QA, and product teams to deliver robust and user-centric solutions. Requirements & Qualifications Experience & Education: 6+ years of experience in JavaScript and TypeScript development. A Bachelor's degree in Computer Science or equivalent is preferred. Core Tech Stack: Must know a modern front-end JS framework, such as React.js + Redux; Next.js is a bonus. Hands-on experience with HTML5, CSS3. Proficiency in writing cross-browser compatible code. Programming Paradigms: Should understand OO concepts and design patterns, and their application to JavaScript development. Knows functional programming paradigms. Understands asynchronous programming paradigms and best practices. Tools & Debugging: Git and branch management knowledge. Experience debugging front-end problems and a knowledge of front-end debugging tools. Familiarity with custom package creation and integration. Soft Skills & Methodology: Experience with Agile methodologies and development practices. Good communication skills and good organization skills. Ability to work under pressure and deliver against tight deadlines. What Is Offered Compensation: Monthly compensation up to $4,800 USD . Contract Type: B2B contract via Optiveum. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization.

🏢 Summary: Senior JavaScript React Developer role focused on building and maintaining high-performance frontend solutions for large-scale, multi-country eCommerce platforms. The position involves developing modern applications with React.js and Next.js, contributing to a multisite Drupal transition, and driving best practices across the full development lifecycle. The role requires close collaboration with cross-functional and international teams in a hybrid work setup. 🗂️ Requirements: Strong experience with React.js and Next.js (SSG/SSR, i18n, performance optimization), Proficiency in JavaScript and TypeScript, Strong knowledge of HTML5, CSS/SCSS, Tailwind, Experience with REST and GraphQL APIs, Experience with Git and CI/CD pipelines, Knowledge of Docker and Kubernetes, Experience with cloud platforms (AWS or Azure or GCP), Understanding of headless or decoupled architecture, Experience with performance optimization and scalable frontend architecture, Knowledge of WCAG accessibility standards, Experience working in Agile/Scrum environment, English level B2 or higher 📃 Skills: React, Next.js, JavaScript, TypeScript, HTML5, SCSS, Tailwind, REST, GraphQL, Git, Jira, Figma, Confluence, Docker, Kubernetes, GitLab, AWS, Azure, GCP, Drupal, jQuery, CI/CD, WCAG, Scrum, AJAX 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. For our client, we are looking for a Senior JavaScript React Developer to join our client's Website & eCommerce team. In this role, you will be responsible for building and maintaining modern, high-performance frontend solutions using React.js and Next.js. You will collaborate closely with designers, backend developers, and international stakeholders while driving best practices across the development lifecycle. You will play a key role in the evolution of large-scale, multi-country digital platforms and contribute to the transition toward a new multisite Drupal platform planned for 2026. Project information: Location: Warsaw, Poland Work Setup: Hybrid work (2 - 3 days/ week in the office) Rate: 125 PLN/net/h + VAT (B2B contract) Language: English (B2+ Required) Start date: depending on candidate availability Project scope: Develop and maintain frontend components using React.js and Next.js (SSG/SSR, i18n, performance optimization) Build and support custom CMS modules, plugins, and integrations Contribute to all phases of the software development lifecycle: design, development, testing, deployment, and maintenance Drive and promote best practices, including test-driven development, CI/CD, SCRUM, refactoring, and code standards Collaborate closely with UX/UI designers and frontend/backend developers to deliver intuitive and visually appealing user experiences Ensure website content is easily editable by non-technical users Optimize applications for performance, scalability, and accessibility (WCAG) Work with distributed international teams and key stakeholders Stay up to date with emerging frontend technologies and industry trends Requirements: Technical Skills: Frontend: Strong skills in React.js and Next.js (SSG/SSR, i18n, performance optimization). Languages: JavaScript/TypeScript, HTML5, SCSS/Tailwind. APIs: REST, GraphQL. Tooling: Jira, Git, Figma, Confluence. Architecture (Preferred): Headless, Decoupled, Micro Frontends, Component-based design. Cloud & DevOps: Docker, Kubernetes, GitLab CI/CD, AWS/Azure/GCP. Competences: Strong front-end skills: HTML, CSS, JavaScript, jQuery, plus modern frameworks (React, Next.js). Understanding of the entire web development process (design, development, deployment). Good understanding of asynchronous request handling, partial page updates, and AJAX. Proficient in cross-browser compatibility and scalable application design principles. Experience with data migration, transformation, and scripting. Familiarity with Agile and Scrum methodologies. Prior experience with digital accessibility (WCAG) We offer: Full-time job agreement based on B2B Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible Multisport card (also for an accompanying person) Life insurance