Zscaler is seeking a Senior Staff Software Engineer to own the architecture, development, and maintenance of a high-scale system test automation infrastructure for ZIA Core Datapath, a cloud security platform processing 400B+ transactions per day. This hybrid role requires 3 days per week in the San Jose, CA office. You will build repeatable automation suites for L4–L7 technologies, validate cloud firewall and IPsec/GRE tunneling, diagnose customer issues, and mentor engineers while driving continuous regression optimization. Key responsibilities include collaborating with cross-functional teams to design, develop, and maintain cloud-based software solutions, and acting as an owner for testing at scale with strong debugging and troubleshooting skills. Qualifications include 12+ years of experience building test automation frameworks in Python, deep networking knowledge (TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing and switching, IPsec/GRE), and experience with cloud security/SaaS testing. Preferred qualifications include AI-assisted coding experience, traffic generation and performance testing, and a track record of leading large-scale test automation initiatives. Salary range: $157,500–$225,000 USD. Benefits include health plans, time off, parental leave options, retirement options, and education reimbursement. This opportunity is in the United States, in San Jose, at Zscaler, a hybrid role.

Zscaler is seeking a Senior Staff Software Engineer to own the architecture, development, and maintenance of a high-scale system test automation infrastructure for ZIA Core Datapath, a cloud security platform processing 400B+ transactions per day. This hybrid role requires 3 days per week in the San Jose, CA office. You will build repeatable automation suites for L4–L7 technologies, validate cloud firewall and IPsec/GRE tunneling, diagnose customer issues, and mentor engineers while driving continuous regression optimization. Key responsibilities include collaborating with cross-functional teams to design, develop, and maintain cloud-based software solutions, and acting as an owner for testing at scale with strong debugging and troubleshooting skills. Qualifications include 12+ years of experience building test automation frameworks in Python, deep networking knowledge (TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing and switching, IPsec/GRE), and experience with cloud security/SaaS testing. Preferred qualifications include AI-assisted coding experience, traffic generation and performance testing, and a track record of leading large-scale test automation initiatives. Salary range: $157,500–$225,000 USD. Benefits include health plans, time off, parental leave options, retirement options, and education reimbursement. This opportunity is in the United States, in San Jose, at Zscaler, a hybrid role.