Frontend Developer with React

Sii Sp. z o.o.Warszawa, Masovian, Poland

Ponad 30 dni temu

Opis pracy

technologies-expected :

React.js
JavaScript
TypeScript

technologies-optional :

CSS3

Next.js

Jasmine

Cypress

about-project :

Join a global banking client’s team and help shape the company’s visual language across hundreds of applications. In this role, you’ll be part of a central, cross-location team developing and maintaining an enterprise-level UI components library used firmwide. You’ll work on innovative projects built with React and TypeScript, focusing on modern technologies and clean architecture — with no legacy code. This hybrid position requires 3 days per week in the Warsaw office.

responsibilities :

Design, build, and enhance reusable UI components in React

Deliver new features, resolve issues, and release new package versions

Collaborate with UX designers, architects, and other teams to translate requirements into scalable solutions

Perform code reviews and ensure code quality through testing

Support internal teams in integrating UI libraries into their products

Continuously research and adopt new front-end technologies to improve performance and accessibility

requirements-expected :

Minimum 5 years of experience in modern front-end development (React, TypeScript)

Strong understanding of web technologies, browser APIs, and component-based architecture

Experience with testing (unit tests with Jasmine / RTL, E2E tests with Cypress)

Familiarity with CSS-in-JS, PWAs, SSR frameworks (Next.js / Gatsby), and accessibility (WCAG)

Excellent communication skills in English, enabling effective collaboration within an international team

Residing in Poland required

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Frontend Developer • Warszawa, Masovian, Poland

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