Senior React Developer

SNI Show all offers

Warszawa

4 days ago

In short

Senior React Developer needed in Warsaw for SNI. Build and maintain large-scale React/JS apps, drive automated testing, optimize performance. Requires extensive React/JS experience, CI/CD, Git. Remote-first environment.

Keywords

React JavaScript CI/CD Automated Testing Git Web Development Application Architecture Performance Optimization

AI-written summary based on the listing content.

SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide.

Responsibilities:

Partner with product and design to shape solutions, validate assumptions, and deliver user-facing features.

Architect, build, and maintain large-scale React and JavaScript applications, including established codebases.

Diagnose and resolve complex dependency, build, integration, and cross-browser runtime issues.

Drive automated testing (unit, integration, UI) and maintain CI/CD pipelines through production releases.

Optimize app performance, handle production monitoring, and contribute to technical design and estimation.

Skills:

Extensive experience building scalable web applications using React and core JavaScript.

React architecture, state management, component design, WebViews, caching, and modern web standards.

CI/CD pipelines, automated testing frameworks, and collaborative Git workflows.

Product-minded approach with experience working directly with cross-functional design and product teams.

Strong communication skills suited for remote-first environments.