Senior ReactJS Developer

Senior ReactJS Developer:

For one of our globally leading tech clients we are urgently looking for an experienced Senior ReactJS Developer for a long contract based in Krakow, Poland.

Its paying well and my client can interview asap!

Role Summary

• Develop responsive, maintainable, and user-focused frontend features using modern web technologies.
• Translate product requirements, UX designs, and acceptance criteria into working software.
• Own features from backlog refinement through development, testing, and release.
• Build reusable frontend components and integrate applications with backend APIs.
• Handle loading, validation, error, and empty states consistently.
• Write clean, modular, reusable, and maintainable frontend code.
• Develop automated unit, component, integration, and end-to-end tests, including Playwright .
• Participate in code reviews and follow established frontend engineering standards.
• Build accessible, responsive interfaces across supported devices and browsers.
• Monitor and improve frontend performance and usability.
• Support sprint planning, estimation, releases, production troubleshooting, and root-cause analysis.
• Collaborate with Product, Design, QA, and DevOps teams.
• Contribute to documentation, knowledge sharing, pairing, and mentoring of newer team members.

Essential Skills

React, Redux Toolkit, JavaScript/TypeScript, HTML, CSS, Responsive Design, REST/GraphQL APIs, Client-side State Management, Playwright, Frontend Testing, Git/Source Control, Browser Development Tools

If this is you, then please do not delay in applying!