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Zscaler

Senior Staff Software Development Engineer, ZIA Core Datapath

Zscaler · San Jose, California, USA

Posted 16 days ago

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

Is this posting real?

This role has been open
16 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 Development Engineer for ZIA Core Datapath will focus on the architecture, development, and maintenance of a high-scale system test automation infrastructure for a cloud security platform. Daily responsibilities include building automation suites for L4-L7 technologies, validating cloud firewall and tunneling stacks, 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

  • Foundational understanding of AI/ML technologies
  • 12+ years of overall experience with strong programming skills in building test automation frameworks in Python
  • 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, 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

Nice to have

  • Experience leveraging AI-assisted coding, static/dynamic analysis, or intelligent automation tools to improve test coverage and engineering productivity
  • 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 networking technologies
  • Salary range provided but excludes commission/bonus/equity
  • Role involves high-scale system testing which may require extensive debugging and troubleshooting

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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