Zscaler

Principal Software Development Engineer (React/Javascript/Typescript)

Zscaler
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2 months ago
Bengaluru, IndiaStaff+
H1B Sponsor

Responsibilities

  • Design and build high-quality ReactJS solutions that translate complex UI/UX designs into production-ready applications.
  • Provide technical mentorship and guide engineers toward stronger engineering practices.
  • Shape and evolve Zscaler’s core design system, including modularity, semantic code, automated testing, performance, and accessibility.
  • Define API contracts and integration roadmaps with backend teams and partner with DevOps on CI/CD pipeline optimization.
  • Lead systematic refactoring to improve scalability, reliability, and maintainability.
  • Provide hands-on architecture and strategic technical direction for next-generation user interfaces.

Requirements

  • 8+ years of professional software development experience, including 5+ years specializing in large-scale, production-grade ReactJS and Redux applications.
  • Expert proficiency with ReactJS, TypeScript, ES6+, and advanced state management paradigms.
  • Experience building complex user interfaces, data-heavy dashboards, and advanced data visualizations such as D3.js.
  • Deep expertise developing unit, integration, and end-to-end testing suites using Jest, Enzyme, or Cypress.
  • Experience designing and deploying large-scale enterprise UIs focused on high availability, performance, and global user experience.
  • Curiosity about and active exploration of AI tools, including experience integrating modern technologies to improve workflows and problem solving.
  • Preferred experience with performance optimization techniques including lazy loading, code splitting, and tree shaking.
  • Preferred familiarity with backend development principles and practical experience using Node.js for API integration, tooling, and debugging.
  • Ability to architect scalable, modular solutions for multi-tenant enterprise applications.

Benefits

  • Various health plans
  • Vacation and sick time off plans
  • Parental leave options
  • Retirement options
  • Education reimbursement
  • In-office perks
  • Hybrid working model

Tech Stack

Categories

Zscaler

About Zscaler

5,001-10,000 employees

Zscaler (NASDAQ: ZS) is a pioneer and global leader in zero trust security. The world’s largest businesses, critical infrastructure organizations, and government agencies rely on Zscaler to secure users, branches, applications, data & devices, and to accelerate digital transformation initiatives. Distributed across 160+ data centers globally, the Zscaler Zero Trust Exchange™ platform combined with advanced AI combats billions of cyber threats and policy violations every day and unlocks productivity gains for modern enterprises by reducing costs and complexity. Stay Connected: LinkedIn: https://www.linkedin.com/company/zscaler Twitter: https://www.twitter.com/zscaler Facebook: https://www.facebook.com/Zscaler/ Instagram: https://www.instagram.com/zscalerinc/