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.