What are the responsibilities and job description for the Senior Frontend Developer position at Integration International Inc.?
Position: Senior React Developer
Location: Andover, MA - 01810 OR Franklin, TN - 37067 (Nashville HUB)
Work Mode: Hybrid (2-3 days oniste)
Duration: 9 Months Contract
Start Date: Jan 19, 2026
Role Summary
Our client is seeking a Senior Front-End React Developer to design, build, and optimize modern, scalable web applications. The role focuses on developing high-quality user interfaces using React.js, improving front-end performance, and collaborating with cross-functional teams to deliver business-critical solutions.
Key Responsibilities
- Develop and maintain user-facing features using React.js
- Build reusable components and front-end libraries
- Convert UX/UI designs and wireframes into production-ready code
- Optimize front-end performance across browsers and devices
- Collaborate with backend developers and designers
- Ensure technical feasibility of UI/UX designs
- Document front-end architecture and codebase
- Stay updated with emerging front-end technologies
Required Qualifications
- Strong experience as a React Developer / Front-End Developer
- Advanced JavaScript (ES6 ) knowledge
- Deep understanding of React core concepts
- Experience with Redux / Flux
- REST API integration experience
- Familiarity with JWT-based authentication
- Experience with modern build tools and pipelines
- Strong performance tuning and optimization skills
- Proficiency with Git / version control systems
- Bachelor’s degree in Computer Science or equivalent experience