Senior Staff Test Automation Architect – Cloud Security

Zscaler; San Jose (CA); Hybrid; USD 158,000 - 225,000; Full time

Benefits offered by this job

Various health plans

Time off plans for vacation and sick

Parental leave options

Retirement options

Education reimbursement

In-office perks, and more!

Job summary

Zscaler Senior Staff Software Engineer – Test Automation Infrastructure (ZIA Core) hybrid role in San Jose, CA, leads architecture and maintenance of a high-scale test automation system for ZIA Core Datapath, a cloud security platform processing 400B+ transactions daily.

You will build repeatable automation suites for L4–L7 tech, validate cloud firewall/TLS/IPsec tunneling, and mentor engineers while driving regression optimization.

Qualifications

• Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions to optimize outcomes within your functional domain.
• 12+ years of overall experience with strong programming skills in building test automation frameworks in Python.
• Solid understanding of TCP/IP protocol stack, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing and switching, and tunneling methods such as IPsec/GRE.
• Strong background in L3, L4, and L7 filtering policies, with hands-on exposure to load balancers, IPS/IDS, and routers.
• Proven experience in manual and automated functional, integration, performance, and scale testing for cloud security/SaaS products, including test plan and test case creation.
• Excellent debugging/troubleshooting skills to diagnose and resolve complex network infrastructure, HTTP/SSL, and firewall issues in customer environments.

Responsibilities

• Collaborate with cross-functional teams during design, development, and maintenance of cloud-based software solutions
• Architect, design, develop, and maintain a scalable system test automation infrastructure for a cloud product processing 400B+ transactions per day
• Build repeatable automation suites to validate L4–L7 technologies, including cloud firewall, IPsec/GRE tunneling, load balancers, IPS/IDS, and routing/switching
• Act as an owner and advocate for testing at scale, pushing the limits of the software under test through proficient coding methodologies and strong debugging/troubleshooting
• Mentor and guide junior engineers, take full ownership of features, and continuously optimize the regression cycle

Skills

AI/ML basics

Python

Test automation

Networking fundamentals

Cloud security testing

L3/L4/L7 filtering

Debugging/troubleshooting

Mentoring

Automation architecture

Security protocols

Tools

Traffic generators

Load testing tools

Fuzzing techniques

Job description

Zscaler Senior Staff Software Engineer – Test Automation Infrastructure (ZIA Core) hybrid role in San Jose, CA, leads architecture and maintenance of a high-scale test automation system for ZIA Core Datapath, a cloud security platform processing 400B+ transactions daily.

You will build repeatable automation suites for L4–L7 tech, validate cloud firewall/TLS/IPsec tunneling, and mentor engineers while driving regression optimization.