Senior React UI Engineer - AI-Integrated Component Libraries

Unleash innovation - transform UI development with cutting-edge AI-powered components!

Warszawa-based opportunity with hybrid work model (4 days per week in the office)

As a Senior React Frontend Software Engineer, you will be working for our client, a global leader in technology solutions committed to building scalable, accessible, and innovative web interfaces that redefine digital experiences. Join a dynamic team dedicated to developing and maintaining a React-based component library integrated with AI-driven workflows, elevating UI standards across enterprise applications and advancing sophisticated design systems. This role offers a unique chance to contribute to transformative projects at the forefront of UI/AI integration, fostering both innovation and career growth.

Your main responsibilities:

• Design, build, and maintain robust UI components aligned with the company's design system and accessibility standards.
• Diagnose, fix, and optimize bugs across the component library and tooling ecosystem.
• Integrate and leverage AI coding agents (such as Claude Code) to enhance development workflows and contribute improvements to tooling and skill sets.
• Collaborate closely with design and platform teams to ensure components meet performance, WCAG, and usability benchmarks.
• Develop and deploy UI-related agent skills to automate and streamline development tasks.
• Improve tooling and development processes to support scalability and consistency across multiple projects.
• Evaluate and enhance AI-agent workflows, including prompts and guardrails, to facilitate more efficient code automation.

You're ideal for this role if you have:

• 4+ years of experience in frontend development, with a strong focus on React and TypeScript.
• Proven expertise in building UI components, design systems, or component libraries at scale.
• Solid experience with CSS-in-JS or similar styling architectures.
• Familiarity with web accessibility standards (WCAG) and experience developing accessible components.
• Hands-on knowledge of Claude Code or comparable AI coding agents, with the ability to guide AI effectively in large codebases.
• Strong problem-solving skills and ability to work collaboratively in a hybrid environment.

It is a strong plus if you have:

• Experience with Angular, Bazel, React Testing Library, Cypress, or similar tools.
• Certifications or additional training in accessibility standards or AI-enhanced development.

Language Required for the role:

• Fluent English.

Eligibility to work in Europe:

• Only candidates with an existing legal right to work in the European Union will be considered for this role.

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.