UI/UX Developer (React Developer)

Experis; Warszawa; Hybrid; PLN 150,000 - 190,000; Full time

Job summary

Experis in Warszawa is seeking a UI/UX Developer with strong React.js expertise to build scalable, high-performance front-end features. You will work closely with the Senior Design/Developer and backend teams to deliver modular, maintainable front-end solutions.

This role offers hybrid work with 2-3 days per week from Warsaw office; solid TypeScript skills, design-system familiarity, and accessibility (WCAG) focus are required.

Qualifications

• Strong React.js and TypeScript development experience.
• Solid understanding of component-based architecture and state management.
• Ability to read and faithfully implement designs from Figma.
• Experience integrating with REST/GraphQL APIs.

Responsibilities

• Design and develop front-end features using React.js, TypeScript, and Design System.
• Build reusable UI components and contribute to shared libraries.
• Ensure pixel-accurate, design-faithful implementations with design team.
• Integrate front-end with REST APIs / backend microservices.
• Optimize performance, accessibility (WCAG), and cross-browser compatibility.
• Participate in code reviews, sprint planning, and Agile ceremonies.
• Troubleshoot UI defects and production issues; support automated tests.

Skills

React.js

TypeScript

Front-end architecture

State management (Redux/Context API)

Figma interpretation

REST/GraphQL APIs

WCAG accessibility

CI/CD pipelines

Agile / sprint ceremonies

Job description

Hybrid work model: 2-3 days per week from Warsaw's office

We are seeking UI/UX Developer with strong React.js expertise to build and maintain scalable, high-performance front-end features. The ideal candidate combines solid engineering fundamentals with a working UI/UX sensibility, ensuring designs are implemented faithfully while flagging usability or consistency issues early. You will work closely with the Senior Design/Developer and backend teams to deliver modular, maintainable front-end solutions.

Key Responsibilities

• Design and develop front-end features using React.js, TypeScript, and modern front-end tooling, per approved designs and the Design System.
• Build reusable UI components and contribute to shared component libraries.
• Collaborate with the Senior Design/Developer to ensure pixel-accurate, design-faithful implementation.
• Integrate front-end applications with REST APIs / backend microservices.
• Optimize application performance, accessibility (WCAG), and cross-browser compatibility.
• Participate in code reviews, sprint planning, and Agile ceremonies.
• Troubleshoot and resolve UI defects and production issues.
• Support automated testing (unit/integration) for front-end code.

Required Skills

• Strong React.js and TypeScript development experience.
• Solid understanding of modern front-end architecture patterns (component-based design, state management e.g. Redux/Context API).
• Working familiarity with design tools (e.g., Figma) -able to read, interpret, and faithfully implement designs.
• Experience integrating with REST/GraphQL APIs.
• Basic understanding of accessibility standards (WCAG).
• Exposure to containerized application environments and CI/CD pipelines.

Nice-to-Have

• Exposure to Micro Frontend concepts (Module Federation).
• Basic SQL/database knowledge.
• Financial services or transfer agency domain exposure.