Frontend Software Engineer (React / Design Systems / AI-Assisted Development)

Strategic Staffing Solutions; Warszawa; On-site; PLN 218,000 - 262,000; Full time

Job summary

Strategic Staffing Solutions is seeking a Frontend Software Engineer to help build and evolve a large-scale React-based component library used across our global organization. You will focus on UI components, accessibility, and developer experience in a fast-paced environment.

This role involves collaborating with design and platform teams, using CSS-in-JS styling, Bazel tooling, and AI-assisted development workflows to accelerate delivery while maintaining quality and WCAG standards.

Qualifications

• Strong expertise in React and TypeScript.
• Understanding of modern styling approaches including CSS-in-JS.
• Experience creating accessible, WCAG-compliant user interfaces.
• Hands-on experience with AI coding tools such as Claude Code, Cursor, GitHub Copilot.

Responsibilities

• Design, build, and maintain reusable UI components used across multiple products.
• Enhance and support the component library, styling framework, and build tooling.
• Diagnose and resolve issues related to components, theming, accessibility, and developer workflows.
• Collaborate closely with design and platform engineering teams to ensure alignment with design system standards and WCAG accessibility requirements.
• Use AI coding agents such as Claude Code and similar tools as an integral part of your daily development workflow.
• Design and implement UI-focused AI agent skills and contribute improvements to AI-assisted engineering processes.
• Drive best practices around testing, performance, maintainability, and scalability.

Skills

React

TypeScript

CSS-in-JS

WCAG accessibility

AI tooling

Tools

Bazel

React Testing Library

Cypress

Job description

Frontend Software Engineer (React / Design Systems / AI-Assisted Development)

Join us in building the UI foundation used across a global organization.

We are looking for a Frontend Software Engineer to help develop and evolve a large-scale React-based component library that powers web applications across the firm. This is an opportunity to work on a highly impactful platform where code quality, accessibility, consistency, and developer experience are at the core of everything we build.

As part of the team, you'll create production-ready UI components, improve engineering tooling, and leverage AI-powered development workflows to accelerate delivery and innovation.

What You'll Do

• Design, build, and maintain reusable UI components used across multiple products
• Enhance and support the component library, styling framework, and build tooling
• Diagnose and resolve issues related to components, theming, accessibility, and developer workflows
• Collaborate closely with design and platform engineering teams to ensure alignment with design system standards and WCAG accessibility requirements
• Use AI coding agents such as Claude Code and similar tools as an integral part of your daily development workflow
• Design and implement UI-focused AI agent skills and contribute improvements to AI-assisted engineering processes
• Drive best practices around testing, performance, maintainability, and scalability

• React (primary framework)
• Bazel (build and monorepo tooling)
• React Testing Library & Cypress

What We're Looking For

• Strong expertise in React and TypeScript
• Understanding of modern styling approaches including CSS-in-JS
• Experience creating accessible, WCAG-compliant user interfaces
• Hands-on experience working with AI coding tools such as Claude Code, Cursor, GitHub Copilot, or similar agentic development solutions
• Ability to effectively guide AI agents within large, convention-heavy codebases
• Interest in improving AI development workflows, prompts, guardrails, and engineering productivity

Nice to Have

• Experience working in large-scale monorepos
• Familiarity with Bazel
• Exposure to developer platform engineering or design system teams

Why Join?

You'll have the opportunity to influence the UI platform used by numerous engineering teams, contribute to the future of AI-assisted software development, and work on challenging frontend architecture problems at scale.

We Offer:

• Salary --> B2B: up to 175PLN ; FTE: up to 21,500PLN gross month
• Onsite work environment in Warsaw

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