Mid-Level UI/UX Developer (React Developer)

Randstad Polska Sp. z o.o.; Warszawa; Hybrid; PLN 140,000 - 220,000; Full time

Benefits offered by this job

Private medical care

Sports card program

Hybrid work model

Multicultural environment

Job summary

Randstad Polska Sp. z o.o. seeks a Mid-Level UI/UX Developer with strong React.js expertise to build scalable front-end features for client-facing Portals.

You will work with Senior Design/Developer and backend teams to deliver modular, maintainable solutions while upholding UI/UX quality and usability. You will design and develop front-end features with React.js, TypeScript, and the Design System, build reusable components, and ensure pixel-accurate implementations while integrating with

Qualifications

• Experience with React.js and TypeScript in front-end development.
• Knowledge of modern front-end architecture and state management patterns.
• Ability to read designs in Figma and implement faithfully.
• Experience integrating with REST/GraphQL APIs and CI/CD pipelines.

Responsibilities

• Design and develop front-end features using React.js, TypeScript and the Design System.
• Build reusable UI components and contribute to component libraries.
• Collaborate to ensure pixel-accurate, design-faithful implementation.
• Integrate front-end with REST/GraphQL APIs and backend services.
• Optimize performance and accessibility (WCAG) and cross-browser compatibility.
• Participate in code reviews, sprint planning, and Agile ceremonies.
• Troubleshoot UI defects and production issues.
• Support automated testing for front-end code.

Skills

React.js

TypeScript

Component-based patterns

Redux/Context API

REST/GraphQL APIs

WCAG accessibility

CI/CD pipelines

Micro Frontend concepts

SQL/Database basics

Finance domain exposure

Tools

Figma

Design System

Job description

For our client, big financial institution, we are seeking a Mid-Level UI/UX Developer with strong React.js expertise to build and
maintain scalable, high-performance front-end features for client facing Portals. Theideal candidate combines solid engineering fundamentals with a working UI/UXsensibility, ensuring designs are implemented faithfully while flagging usability or
consistency issues early. You will work closely with the Senior Design/Developer andbackend teams to deliver modular, maintainable front-end solutions.

What will your tasks involve?

• Design and develop front-end features using React.js, TypeScript, and modern front-end tooling, per approved designs and the company's 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-browsercompatibility.
• 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.

What we expect from you?

• Strong React.js and TypeScript development experience.
• Solid understanding of modern front-end architecture patterns (component-baseddesign, state management e.g. Redux/Context API).
• Working familiarity with design tools (e.g., Figma) — able to read, interpret, andfaithfully 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.

What you can expect from us?

• An attractive salary based on your experience (details will be provided during a phone interview),
• B2B contract with the possibility of long-term cooperation,
• A flexible hybrid work model (50% from our modern office in central Warsaw, 50% remote),
• The opportunity to join a private medical care plan and a sports card program,
• The chance to work in a multicultural, prestigious, and professional environment.

this job offer is intended for people over 18 years of age