Principal Software Engineer UI, React.js Job at Zscaler in San Jose

Principal Software Engineer - UI, React.js

San Jose, California, USA

About Zscaler

Serving thousands of enterprise customers around the world including 45% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users.

As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure.

The pioneering, AI-powered Zscaler Zero Trust Exchange platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry.

If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler.

Job Description

Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building.

With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries.

Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy.

We seek a seasoned Principal Software Engineer, UI reporting into the VPE.

You will lead a high-performing engineering team working on the development of common UI frameworks, component libraries, and cutting edge user experiences.

This role offers the opportunity to influence the direction of user experience of our cybersecurity products and significantly impact our global customer base.

This is a hybrid role reporting into our San Jose, CA office 3 days a week.

In this role, you will:

• Lead the development, maintenance, and architectural design of scalable UI components for a design system using ReactJS/TypeScript
• Collaborate with cross-functional teams (design, product, engineering) to define the design system's vision, integrate components, and drive adoption
• Mentor engineers, ensure high code quality through reviews and standards, and implement robust testing strategies
• Continuously improve UI component performance, accessibility, and usability, staying current with front-end trends and technologies
• Establish and maintain comprehensive documentation for the design system

Minimum Qualifications

• Minimum of 10+ years of professional experience in UI engineering, with a focus on ReactJS
• Strong proficiency in HTML (semantic), CSS (including responsive design and box model), and mobile-first development
• Solid understanding of UI/UX design principles, with experience collaborating with designers on data-heavy web applications
• Proficiency with front-end build tools, package managers, monorepos, and version control systems (e.g., Nx, npm, Git)

Preferred Qualifications

• Bachelor's or Master's degree in Computer Science, Engineering, or equivalent experience
• Experience with performance optimization, comprehensive testing methodologies, clear documentation, and automation for high-quality, reusable UI components
• Knowledge of data visualization libraries (e.g., D3.js) and advanced problem-solving skills for complex technical challenges

#LI-BH1 #LI-Hybrid

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

$182,000 - $260,000 USD

At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with.

We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging.

Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees.

Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

• Time off plans for vacation and sick time
• Parental leave options
• Retirement options
• In-office perks, and more!

Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here.

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines.

Zscaler is committed to providing equal employment opportunities to all individuals.

We strive to create a workplace where employees are treated with respect and have the chance to succeed.

All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws.

Pay Transparency

Zscaler complies with all applicable federal, state, and local pay transparency rules.

Zscaler is committed to providing reasonable support in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply for this job

*

indicates a required field

First Name *

Last Name *

Email *

Phone

Country *

Phone *

Resume/CV *

Enter manually

Accepted file types: pdf, doc, docx, txt, rtf

Enter manually

Accepted file types: pdf, doc, docx, txt, rtf

Website

LinkedIn Profile

How did you learn about this job?

*

If you selected Other please tell us how you learned about this job.

Do you have the legal right to work in the country where you are applying to work?

*

Do you require a work permit, visa or additional right to work support for the country where you are applying to work?

*

If yes, please advise what support is needed:

In what city and state is your primary residence?

(e.g. San Jose, CA) *

Do you currently work for, or have you previously worked for Zscaler?

*

Current Company *

Current Title *

Have you been involved in procurement or contract award activities involving Zscaler as a government employee or official?

*

To ensure compliance with laws on hiring government employees, please let us know if you have a potential conflict of interest.

This may apply if you are a current or former government employee who is, or has been, involved in procurement or contract award activities for Zscaler products or services.

I Agree

In consideration of Zscaler, Inc.

or any of its subsidiaries (together referred to as “Zscaler”) granting the opportunity to apply for a position with Zscaler, I agree to use Confidential Information for the sole purpose of evaluating a position with Zscaler, that I will not disclose Confidential Information to anyone outside of Zscaler, that all Confidential Information disclosed by Zscaler (and any derivative works thereof) remains the property of Zscaler, and no license or other rights to Confidential Information is granted or implied, not to use the systems of my current employer to access any Confidential Information or download any Confidential Information onto the systems of my current employer, immediately upon request, to return or destroy all the embodiments and copies of any Confidential Information, and that Confidential Information means any nonpublic information disclosed to me by Zscaler that Zscaler labels or otherwise identifies as confidential or a reasonable person would understand to be confidential.

I Agree

By proceeding with your application or engaging in the recruitment process with you acknowledge that we will collect, use, and store your personal information in accordance with the data privacy notice linked below.

If you have questions about how your personal data is handled, please contact privacy@zscaler.com.

For government reporting purposes, we ask candidates to respond to the below self-identification survey.

Completion of the form is entirely voluntary and will not affect the hiring process.

Any information provided will be recorded and kept confidential.

As set forth in Zscaler’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, indicate as appropriate.

This information is requested to measure outreach efforts under VEVRAA.

Classification of protected categories is as follows:

• A disabled veteran is one who is entitled to compensation or was discharged due to service-connected disability
• A recently separated veteran is within three years of discharge
• An active duty wartime or campaign badge veteran served during a war or campaign
• An Armed Forces service medal veteran participated in a U.S. military operation

Voluntary Self-Identification of Disability

Form CC-305

OMB Control Number 1250-0005

Expires 04/30/2026

Public burden statement: This form is voluntary; completing it may aid compliance with OFCCP requirements.

For more information, visit the OFCCP website.