Zscaler
Senior Staff Software Engineer – Test Automation Infrastructure (ZIA Core)
$158K–$225K
Santa Clara, California, USA · Senior Staff · Full-time · Posted Sep 1, 2026
- Experience
- 12+ years overall.
About the job
Owns and develops scalable test automation infrastructure and regression suites for ZIA Core’s cloud security datapath, validating network technologies and diagnosing customer issues.
What you'll do
- Architect, develop, and maintain system test automation infrastructure for a high-scale cloud product.
- Build test suites for L4–L7 technologies, including firewall, tunneling, load balancing, intrusion prevention/detection, and routing/switching.
- Debug customer and infrastructure issues, optimize regression testing, and mentor engineers.
What they ask for
- 12+ years of overall experience and strong Python programming skills building test automation frameworks.
- Understanding of TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing, switching, and IPsec/GRE tunneling.
- Hands-on exposure to L3/L4/L7 filtering policies, load balancers, IPS/IDS, and routers.
- Experience with functional, integration, performance, and scale testing for cloud security/SaaS products, including creating test plans and test cases.
Nice to have
- Experience with AI-assisted coding, static/dynamic analysis, or intelligent automation tools.
- Experience with traffic generators, performance/load testing tools, and fuzzing; mentoring or leading large-scale quality initiatives.
Pay
$157,500 — $225,000 USD (base salary)
Tools
Python, TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, IPsec/GRE
AI focus
Foundational AI/ML knowledge and experience leveraging, securing, or positioning AI-driven solutions; preferred use of AI-assisted coding, analysis, or intelligent automation to improve testing and productivity.
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