Senior Staff Software Engineer – Test Automation Infrastructure (ZIA Core)

The role

You will own the design, build and upkeep of a large-scale test automation system for ZIA Core Datapath, a cloud security platform processing 400B+ transactions a day. You will build test suites for L4-L7 technologies, diagnose customer issues and mentor junior engineers.

What you will do

• Collaborate with cross-functional teams during design, development and maintenance of cloud-based software
• Architect, design, develop and maintain a scalable system test automation infrastructure
• 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
• Mentor and guide junior engineers, take full ownership of features and continuously optimize the regression cycle

Required qualifications

• Foundational understanding of AI/ML technologies and experience leveraging, securing or positioning AI-driven solutions
• 12+ years of overall experience
• Strong programming skills in building test automation frameworks in Python
• Solid understanding of TCP/IP, HTTP(S), TLS, PKI, DNS, DHCP, VPN, HA, routing and switching, and IPsec/GRE tunneling
• 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 and troubleshooting skills for network infrastructure, HTTP/SSL and firewall issues in customer environments

Nice to have

• Experience leveraging AI-assisted coding, static/dynamic analysis or intelligent automation tools
• Hands-on experience with traffic generators, performance/load testing tools and fuzzing techniques
• Track record of mentoring junior engineers and leading large-scale test automation or quality initiatives for distributed cloud systems

Benefits

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

Before you apply

• Applicants must adhere to applicable laws, regulations and Zscaler security and privacy policies

About the company

Zscaler provides the Zero Trust Exchange, a cloud security platform that connects users, devices and applications in any location. It operates across 200+ public data centers globally.