Associate Frontend Team Lead (React)

💰 Salary: 25,000-29,500 PLN/month 🌎 Hybrid from Warsaw, Poland 🕦 Full-time position, long-term ☑️ Contract of Employment We are looking for an Associate Frontend Team Lead to join our client, a technology company that builds AI-powered platforms and consulting solutions for enterprise operations, with a strong focus on the private capital sector. The company has over ten years of experience working with high-growth and PE-backed businesses, combining deep domain expertise with advanced technology to drive measurable results. In this role, the focus will be on leading a team of developers across front-end development, owning architectural decisions, and contributing directly to the codebase. You will mentor engineers and drive the delivery of high-performance web applications. Requirements: • 5+ years of experience with JavaScript/TypeScript, including at least 3 years working with React.js • Strong proficiency in React Hooks, Context API, and Redux (preferably Redux Toolkit) • Demonstrated understanding of frontend design patterns and clean coding practices • Experience integrating frontend applications with RESTful APIs or GraphQL services • Solid knowledge of HTML5, CSS3/SCSS, and building responsive user interfaces • Hands-on experience with component libraries and design systems (e.g., Storybook, Material UI, Tailwind) • Familiarity with modern build tools such as Webpack and Vite, including optimization techniques • Experience leading or mentoring developers within a team environment Nice to Have: • Familiarity with performance analysis and profiling tools (e.g., Lighthouse, Chrome DevTools) • Experience working with SSR/SSG frameworks like Next.js • Understanding of web accessibility standards (WCAG) • Contributions to open-source frontend projects or libraries Key Responsibilities: • Guide and support a team of React developers through code reviews, one-on-one meetings, and practical coaching. • Work closely with product managers, designers, and backend engineers to shape and prioritize features. • Take ownership of sprint planning, task estimation, and meeting delivery deadlines for the frontend team. • Design and build sophisticated user interfaces using React, including Hooks and the Context API. • Develop and maintain a scalable state management approach using Redux Toolkit. • Apply and promote modern frontend design patterns such as container/presenter, compound components, render props, and higher-order components. • Create reusable components and ensure consistency with the overall design system. • Improve application performance, accessibility, and compatibility across different browsers. • Champion best practices for code quality, testing, CI/CD processes, and documentation. • Ensure strong unit and integration test coverage using tools like Jest and React Testing Library. • Participate in frontend architecture decisions and assess new tools and libraries when appropriate. 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.