Sr. Staff Software Development Engineer - C, Load Balancers, Firewalls jobs in United States
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Zscaler · 8 hours ago

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

positionSan Jose, CA
timeFull-time
remoteHybrid
senioritySenior Level, Lead/Staff
money$154K/yr - $220K/yr
date8+ years exp

Zscaler is a pioneer and global leader in zero trust security, seeking a Senior Staff Software Development Engineer to join their team. The role involves designing, developing, and optimizing firewall and cloud infrastructure, ensuring alignment with business goals and delivering technical solutions across disciplines.

Cloud SecurityCyber SecurityEnterprise SoftwareSecurity
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H1B Sponsor Likelynote

Responsibilities

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

Qualification

Networking security softwareLoad balancersC programmingTCP/IP fundamentalsPublic cloud infrastructureHigh-performance ComputingEvent-based programmingFault ToleranceUNIXQUICSaaS-based FirewallPerformance scalingComputer Science degree

Required

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

Preferred

Experience in SaaS-based Firewall/SWG solutions
Experience solving Performance and Scaling bottlenecks
Bachelor's or Master's degree in Computer Science, Engineering, or equivalent experience

Benefits

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

Company

Zscaler

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Zscaler is a global cloud-based information security company that enables secure digital transformation for mobile and cloud.
dateFounded in 2008
location
San Jose, California, USA
people-size5001-10000 employees
web-link
https://www.zscaler.com

H1B Sponsorship

Zscaler has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (164)
2024 (220)
2023 (108)
2022 (144)
2021 (82)
2020 (51)

Funding

Current Stage
Public Company
Total Funding
$1.67B
Key Investors
TPG GrowthLightspeed Venture Partners
2025-07-01Post Ipo Debt· $1.5B
2024-04-23Post Ipo Equity· $22.7M
2018-03-16IPO

Leadership Team

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Jay Chaudhry
CEO, Chairman & Founder
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Hemant Dabke
Area Vice President
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Recent News

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2026-01-23
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The Motley Fool Interviews Zscaler Founder and CEO Jay Chaudhry
2026-01-22
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Zscaler appoints Swamy Kocherlakota to lead Agentic AI security engineering
2026-01-20
Company data provided by crunchbase