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Staff Software Development Engineer - Automation/Python/Networking

Zscaler · Bangalore, India

Verified live on July 23, 2026
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Zscaler
Bangalore, IndiaFull-time5+ years

About this role

This Staff Software Development Engineer seat sits in Zscaler's Cyber Security and Data Protection engineering org, and despite the SDE title the emphasis is heavily on test automation and quality engineering at scale. You build the automated test frameworks and internal tooling that validate complex features across web filtering, policy enforcement, next generation firewalls and CASB, and you lead scalability, stress and performance testing for products that protect millions of users. The stack leans Python, automation and networking. It is a hybrid role based in Bangalore. This is a senior individual contributor seat for an engineer who takes quality seriously as an engineering discipline, likes building frameworks rather than running manual test passes, and is comfortable owning the automation that lets a security product ship fast without breaking.

Who this is for

What the posting asks for:
- 5+ years as a Software Development Engineer, with real strength in automation.
- Hands on Python and the ability to design and maintain scalable automation frameworks and internal tooling.
- Experience with networking concepts, since the products are network security systems.
- Depth in scalability, stress and performance testing.

The day to day: you design, implement and run comprehensive automated test cases for complex features, build and maintain automation frameworks that streamline the testing lifecycle, and lead performance and stress testing to find bottlenecks across web filtering, firewall, policy enforcement and CASB products.

Location and ways of working: hybrid, based in Bangalore, reporting to the Sr Manager of Engineering in Cyber Security and Data Protection.

Honest read: read the title carefully. This is a senior automation and quality engineering role inside a security business, not a feature development seat. If you are a strong SDET or automation engineer with Python and networking, it fits. If you want to write product features, it will not. Hybrid Bangalore, so factor in office days.
Apply on company site Opens job-boards.greenhouse.io, the employer's own application page. Applying is always free.
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