Zscaler
Staff Software Engineer - React.js
$130K–$185K
Santa Clara, California, USA · Staff · Full-time · Posted Feb 12, 2026
- Experience
- 5+ years in JavaScript development focused on building and deploying ReactJS applications.
About the job
Build and maintain reusable frontend libraries, tools, and high-performance React applications, while providing technical leadership on frontend architecture and engineering quality.
What you'll do
- Develop and maintain resilient UI using ReactJS, TypeScript, and Tailwind; create frontend libraries and tools.
- Document technical specifications, communicate with stakeholders, and address technical challenges through test automation.
- Review code and uphold coding standards to support maintainable frontend architecture.
What they ask for
- 5+ years of JavaScript development focused on building and deploying ReactJS applications.
- Expertise in documentation, testing, and automation as part of the UI workflow.
- Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions within the functional domain.
- Problem-solving ability and experience communicating complex technical concepts to stakeholders.
Nice to have
- Experience building generative AI web frontends, including complex application state and real-time streaming LLM responses.
- Front-end performance optimization, rendering bottleneck resolution, and scalable reusable architecture experience.
Pay
$129,500 — $185,000 USD (base salary)
Tools
ReactJS, TypeScript, Tailwind, JavaScript, AI/ML, LLM
AI focus
Requires foundational AI/ML understanding and experience leveraging, securing, or positioning AI-driven solutions; preferred work includes generative AI frontends supporting real-time streaming LLM responses.
Model-written summary · the original posting is authoritative