Zscaler · 5 hours ago
Staff Software Development Engineer- Web proxy
San Jose, CA
Full-time
Hybrid
Senior Level, Lead/Staff
$130K/yr - $185K/yr
5+ years expZscaler is a pioneer and global leader in zero trust security, seeking a Staff Software Development Engineer to join their Emerging Tech team. The role involves architecting and building high-performance web proxy and infrastructure components, focusing on low-latency, high-throughput systems primarily in Go.
Cloud SecurityCyber SecurityEnterprise SoftwareSecurity
Responsibilities
Design, implement, and optimize high-performance web proxy services and build and maintain low-latency, high-throughput networked systems
Develop robust services using Go, with the option to utilize Rust or C where appropriate
Work extensively with socket programming, HTTP/1.1 through HTTP/3, and TLS / mTLS
Optimize performance related to concurrency, memory management, CPU usage, network I/O, and connection handling while ensuring system reliability, fault tolerance, and security
Collaborate with AI/ML, platform, and infrastructure teams to review code, mentor engineers, and contribute to architectural decisions
Qualification
Required
5+ years of professional software engineering experience
Strong proficiency in Go is preferred, though Rust or C experience is acceptable
Deep understanding of network programming including sockets, TCP/UDP, and connection pooling
Strong knowledge of HTTP and TLS internals with experience building high-performance, low-latency systems
Solid understanding of concurrency and parallel programming with experience debugging complex production issues
Preferred
Experience building AI infrastructure, gateways, or proxies
Familiarity with gRPC, load balancing, reverse proxies, zero-copy I/O, and kernel networking optimizations
Experience with Linux internals, performance profiling tools, and exposure to distributed systems and cloud-native architectures
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
Zscaler is a global cloud-based information security company that enables secure digital transformation for mobile and cloud.
5001-10000 employees
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 CompanyTotal Funding
$1.67BKey Investors
TPG GrowthLightspeed Venture Partners
2025-07-01Post Ipo Debt· $1.5B
2024-04-23Post Ipo Equity· $22.7M
2018-03-16IPO
Leadership Team
Jay Chaudhry
CEO, Chairman & Founder
Hemant Dabke
Area Vice President
Recent News
2026-01-17
TheRecursive.com
2026-01-17
Company data provided by crunchbase