Senior React UI Engineer – AI-Integrated Component Libraries

ITDS Polska Sp. z o.o.; Warszawa; Hybrid; PLN 180,000 - 270,000; Full time

Benefits offered by this job

Medical Package

Multisport Program

Pluralsight

Flexible hours

Private medical care

Corporate gym

Coffee/Tea

Drinks

Birthday celebration

Job summary

ITDS Polska Sp. z o.o. in Warsaw is seeking a Senior React UI Engineer to join a client-facing team building an AI-integrated React component library for enterprise applications.

You will design, implement, and maintain scalable UI components aligned with our design system while ensuring accessibility and performance. This hybrid role offers collaboration with design and platform teams, opportunities to leverage Claude Code for smarter development, and growth through a portfolio of diverse

Qualifications

• 4+ years of frontend experience with React and TypeScript.
• Proven experience building UI components, design systems, or libraries at scale.
• Solid CSS-in-JS or similar styling approach.
• Familiar with WCAG and accessible component development.
• Hands-on knowledge of Claude Code or similar AI coding agents.
• Strong problem-solving and collaboration in hybrid environments.

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.

Skills

React

TypeScript

UI components

Design systems

Accessibility

CSS-in-JS

AI agents

Claude Code

Hybrid work

Tools

Claude Code

Job description

Senior React UI Engineer – AI-Integrated Component Libraries

• As a Senior 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.
• Unleash innovation — transform UI development with cutting‑edge AI-powered components!
• Warszawa-based opportunity with hybrid work model.
• Only candidates with an existing legal right to work in the European Union will be considered.

This is how we organize our work

This is how we work

• at the client's site
• agile
• scrum

Your 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.

Our requirements

• 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.

Optional

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

What we offer

• Stable and long-term cooperation with very good conditions
• Enhance your skills and develop your expertise in the financial industry
• 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
• sharing the costs of sports activities
• private medical care
• flexible working time
• corporate gym
• coffee / tea
• drinks
• birthday celebration
• sharing the costs of a streaming platform subscription
• access to +100 projects
• access to Pluralsight

Recruitment stages

1

online interview

2

online interview

ITDS’s Whistleblower Procedure

• You can report violations in accordance with ITDS’s Whistleblower Procedure available here: https://itds.pl/wp-content/uploads/2025/03/INFORMATION-ON-PROCEDURE-FOR-REPORTING-BREACHES-AND-PROTECTION-OF-WHISTLEBLOWERS-AT-ITDS-POLSKA.pdf
• ITDS supports financial service providers to take the next steps.
• We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.
• We see where banks, insurers, payment companies, or fintech can go and how they can get there.
• That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.
• ITDS in Poland - Pure player in new Technologies & Financial Industry
• +300 IT implementation professionals
• +20 clients in the Banking, Insurance, Payment & Fintech Industry
• ITDS excels in digital strategy delivery and implementation of best‑of‑breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.