Sr. Staff Software Development Engineer C, Load Balancers, Firewalls

Zscaler
San Jose, CA

About Zscaler

Zscaler accelerates digital transformation so our customers can be more agile efficient resilient and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users devices and applications in any location.

Here impact in your role matters more than title and trust is built on results. We believe in transparency and value constructive honest debate were focused on getting to the best ideas faster. We build high-performing teams that can make an impact quickly and with high quality. To do this we are building a culture of execution centered on customer obsession collaboration ownership and accountability.

We value high-impact high-accountability with a sense of urgency where youre enabled to do your best work and embrace your potential. If youre driven by purpose thrive on solving complex challenges and want to make a positive difference on a global scale we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.

Our Engineering team built the worlds 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 todays 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.

Were looking for a Senior Staff Software Development Engineer to join our ZIA Cloud team. You will be working on firewalls and cross product features between ZIA and ZPA to present a greater value than its parts. You will bring technical expertise in network security hands-on development experience and proven leadership capabilities. This is a hybrid role going into the San Jose CA office 3 days a week. Reporting to the Senior Director ZIA Core Engineering you will:

  • Participate in design development and optimization of firewall and in Cloud Infrastructure
  • Execute the technical roadmap for firewalls ensuring alignment with business goals
  • Communicate technical solutions to all levels within-group and cross-discipline. status reporting and presenting solutions is an integral part of the job
  • Own the feature you are responsible for all the way to deployment and operations.
  • Ensure performance security scale reliability operational and cost optimization criteria are met

What Were Looking for (Minimum Qualifications)

  • 8 years of experience in designing and implementing networking security software and public clouds infrastructure
  • Experience in Load balancers IPS/IDS Routers Firewall products
  • Expert-level programming skills in C/UNIX/RTOS
  • Strong in fundamentals - TCP/IP QUIC QUIC
  • Experience with High performance Computing Event based programming Fault Tolerance etc.

What Will Make You Stand Out (Preferred Qualifications)

  • Experience in SaaS based Firewall/SWG solutions
  • Experience solving Performance and Scaling bottlenecks
  • Bachelors or Masters degree in Computer Science Engineering or equivalent experience

#LI-BH1
#LI-Hybrid

Zscalers 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

$154000 - $220000 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:

  • Various health plans
  • Time off plans for vacation and sick time
  • Parental leave options
  • Retirement options
  • Education reimbursement
  • In-office perks and more!

Learn more about Zscalers 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. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link.

Pay Transparency

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

Zscaler is committed to providing reasonable support (called accommodations or adjustments) 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.

Required Experience:

Staff IC

Posted 2025-11-21

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