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Zscaler

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

Zscaler · San Jose, California, USA

Posted 15 days ago

or apply directly on Zscaler's site. We never take the application ourselves.

Is this posting real?

This role has been open
15 days
Zscaler's roles stay open a median of 40 days
Reposted
No
Salary listed
No
0% of Zscaler's roles list one
Ghost-job risk at Zscaler
low
0 stale, 19 reposted of 370 open
Hiring momentum
564 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Zscaler's own greenhouse board since 2026-08-03. Full hiring picture for Zscaler.

About this role

The Senior Staff Software Engineer – Test Automation Infrastructure role at Zscaler involves owning the architecture, development, and maintenance of a high-scale test automation infrastructure for the ZIA Core Datapath, which processes over 400 billion transactions daily. Responsibilities include building automation suites for L4-L7 technologies, validating cloud security features, diagnosing customer issues, and mentoring junior engineers while optimizing regression processes.

Our read on this posting3.0out of 5
benefits
3/5
freshness
4/5
career value
4/5
role clarity
4/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Zscaler as an employer.

What you need

  • 12+ years of overall experience with strong programming skills in building test automation frameworks in Python
  • Foundational understanding of AI/ML technologies
  • Solid understanding of the 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
  • Proven experience in manual and automated functional, integration, performance, and scale testing for cloud security/SaaS products
  • Excellent debugging/troubleshooting skills to diagnose and resolve complex 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

What you get

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

Worth weighing

  • Hybrid role requiring 3 days per week in the San Jose office
  • No specific mention of the tech stack beyond Python and L4-L7 technologies
  • Base salary range provided but excludes commission/bonus/equity

Summarised from Zscaler's posting. Read the full original.

Listed by Zscaler on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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