Sr. React UI Developer (Onsite Sunnyvale, CA)

Post Date

Jul 29, 2026

Location

Sunnyvale,
California

ZIP/Postal Code

94086
US
Oct 02, 2026 Insight Global

Job Type

Contract

Category

Software Engineering

Req #

BEN-505713d3-5878-4043-9301-3cce26433e75

Pay Rate

$47 - $59 (hourly estimate)

Job Description

We are seeking a Senior React Developer to join a team focused on building innovative digital experiences that promote healthier lifestyles through personalized insights and recommendations. This role will help develop customer-facing web applications that leverage data science, behavioral analytics, purchase history, and AI-powered capabilities to deliver meaningful health and wellness experiences.

The ideal candidate is a senior-level engineer with strong React expertise who can independently drive feature development, collaborate with cross-functional teams, and contribute across the full stack using Java and mobile (iOS and Android) technologies.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Required Skills & Experience

7+ years of software engineering experience of hands-on developing modern web applications using React.js.
Strong proficiency in JavaScript, TypeScript, HTML5, and CSS.
Experience building and consuming RESTful APIs and microservices.
Experience developing mobile applications for both iOS and Android platforms, including integrating APIs and delivering responsive, user-centric experiences across web and mobile channels.
Backend development experience with Java and/or Python.
Strong understanding of front-end architecture, state management, and performance optimization.
Experience working in Agile development environments.
Proven ability to independently drive projects and deliver complex features with minimal oversight.
Experience leveraging AI-powered development tools and technologies to accelerate UI development, improve developer productivity, streamline code generation, automate testing, and enhance the overall software development lifecycle. Experience with tools such as GitHub Copilot, Cursor, OpenAI, Azure OpenAI, Claude, Gemini, or similar AI-assisted development platforms is highly desired.

Nice to Have Skills & Experience

AI/ML Integration
Personalization & Recommendation Systems
Cloud Platforms (AWS, Azure, or GCP)
Data Analytics & Visualization Tools

Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.