> Markdown version of [/jobs/ext/4721028-senior-reactjs-developer](https://www.wearedevelopers.com/jobs/ext/4721028-senior-reactjs-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior ReactJS Developer - **Company:** Tek Ninjas - **Location:** Bellevue, WA, United States - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), Application Performance Management, Performance Tuning, Web Applications, ReactJS, Backend, Git, Front End Software Development, React Redux, Restful APIs - **Published:** November 14, 2026 - **Apply:** https://www.careerjet.com/jobad/us34a2f133a463f6b9698d5ba5ed3697a8 ## About the Role * 8+ years of total and relevant experience * ReactJS * JavaScript * Redux or Context API * React architecture * REST APIs * Experience building and maintaining web applications Preferred Skills * Git * Performance optimization * Experience collaborating across design and backend teams ## Description This position will develop and enhance web applications using ReactJS and JavaScript. The developer will design user interfaces, apply React architecture principles, optimize application performance, integrate REST APIs, and collaborate with designers and backend developers. The role also emphasizes maintainable code, problem-solving, and high-quality delivery., * Develop and maintain web applications using ReactJS and JavaScript * Build scalable and maintainable user interfaces * Implement state management using Redux or Context API * Integrate and work with REST APIs * Optimize frontend application performance * Collaborate with designers and backend developers * Maintain high code quality and troubleshoot application issues