Sr. Staff Software Engineer - UI, React.js

About the role

Zscaler is an AI-forward enterprise that accelerates digital transformation through its cloud-native Zero Trust Exchange platform. The company is known for its innovative approach, leveraging the world’s largest security data lake to protect against cyberattacks and data loss.

Role

We are seeking a Staff Software Development Engineer (UI/React.js) to join our team. This is a San Jose, CA (Hybrid) role, reporting to the Director, Engineering in the Unified Experiences Platform department. As a key member of this team, you will be responsible for crafting high-quality libraries and tools while building high-performance, resilient UI that scales. You will also serve as a technical leader, driving engineering excellence and ensuring our frontend architecture meets the highest standards of performance and maintainability.

What you’ll do (Role Expectations)

• Craft high-quality libraries and tools for building frontend applications
• Develop and maintain high-performance resilient UI using ReactJS, TypeScript, and Tailwind
• Document and communicate technical specifications to ensure alignment with stakeholders
• Identify and resolve technical challenges by incorporating a robust test automation strategy
• Participate in code reviews and enforce coding standards to ensure a maintainable codebase

Who You Are (Success Profile)

• You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful.
• You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution.
• You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, knowing that solving the hard problems delivers the biggest impact.
• You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest way to earn trust.
• You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose.

What We’re Looking for (Minimum Qualifications)

• Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions to optimize outcomes within your functional domain
• 5+ years of experience in JavaScript development with a focus on building and deploying ReactJS applications
• Expertise in creating lean, clear documentation, testing, and automation as integral components of the UI workflow
• Exceptional problem-solving skills with a proven ability to develop creative solutions and convey complex technical concepts to both technical and non-technical stakeholders
• Demonstrated track record of fostering engineering excellence and driving innovation

What Will Make You Stand Out (Preferred Qualifications)

• Experience building web interfaces for generative AI applications, including optimizing UI components for real-time streaming LLM responses and designing intuitive component workflows for AI features
• Demonstrated expertise in front-end performance optimization and resolving rendering bottlenecks within data-intensive interfaces to ensure fluid user experiences
• Skilled in designing scalable, reusable front-end architectures that prioritize efficient component composition

Pay and Benefits

Zscaler’s salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training.

The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.

Base Pay Range: $154,000 - $220,000 USD

Zscaler’s benefits program is comprehensive and inclusive, offering various health plans, time off plans, parental leave options, retirement options, education reimbursement, and in-office perks, among others.