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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal System and Solution Test Engineer - **Company:** Zscaler, Inc. - **Location:** San Jose, CA, United States - **Salary:** $185,500.0 - $265,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Cloud Computing Security, Complex Networks, Computer Networks, Software Debugging, Networking Hardware, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Machine Learning, Network Service, Cloud Services, Zero Trust Network Access, Software Engineering, Software Testing Automation Framework, Wide Area Networks, Computer Networking Systems, Performance Testing, Cloudformation, Terraform - **Published:** September 27, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=09b5bc4540649cb3 ## About the Role * You thrive in a dynamic, fast-paced environment, viewing ambiguity as a canvas for innovation and high-impact problem solving. * You operate with a deep sense of ownership and personal integrity, driven by a genuine passion for the engineering mission. * You are energized by complex technical puzzles, proactively seeking out challenging scenarios to deliver robust, scalable outcomes. * You build strong empathy for the end-user, placing customer needs at the center of your architecture and design validation strategy. * You maintain a high sense of urgency and relentless focus on execution, balancing speed and quality to win for the team and our customers., * 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 in Network Security, SD-WAN, or Networking Infrastructure testing with strong proficiency in Python for tool development * Proven expertise in building and maintaining Test Automation Frameworks from the ground up, utilizing Terraform or CloudFormation for complex cloud test environments * Deep understanding of L2-L7 networking, TCP/IP stack internals, and performance testing methodologies using industry-standard traffic generators * Strong exposure to SD-WAN technologies, VPNs, and Cloud Security architectures combined with advanced knowledge of Linux networking concepts * Solid understanding of modern tunneling methods like IPSEC or GRE and hands-on experience with Public Cloud networking in AWS or GCP, * Proven ability to leverage AI technologies and workflows to drive measurable operational efficiency * Demonstrated ability to translate a holistic view of the product into complex test scenarios that accurately simulate real-world deployment environments * Experience with industry-standard traffic generation tools and methodologies ## Description We are looking for a Principal System and Solution Test Engineer to join our team. This is a hybrid role based in Santa Clara,CA, reporting to the Architect, Software Development Engineering in the Zero Trust Branch department. You will drive the quality strategy for our Zero Trust Networking Services, validating complex network security architectures and end-to-end interactions between branch networking devices and global SASE cloud services through customer-centric scenarios. What you'll do (Role Expectations) * Collaborate with cross-functional teams to design, develop, and maintain cloud-based software solutions * Leverage your deep expertise in L2-L7 technology to test cloud-delivered security and SD-WAN technologies * Build repeatable, robust system-level automation suites to validate L2-L7 technologies * Provide critical insights and recommendations to the development team to enhance RASS, debugging capabilities, and overall product usability * Design and execute scenarios mimicking real-world production environments to proactively expose critical gaps, ensuring the stability required for seamless customer deployments ## Related Videos - [Infrastructure as Code: The Developer's Secret Weapon](https://www.wearedevelopers.com/videos/1221-infrastructure-as-code-the-developer-s-secret-weapon) - [The power of Cloud Development Kit (CDK): How to get the most out of it](https://www.wearedevelopers.com/videos/740-the-power-of-cloud-development-kit-cdk-how-to-get-the-most-out-of-it) - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) - [Leverage Cloud Computing Benefits with Serverless Multi-Cloud ML ](https://www.wearedevelopers.com/videos/78-leverage-cloud-computing-benefits-with-serverless-multi-cloud-ml) - [Terraform for Developers](https://www.wearedevelopers.com/videos/3-terraform-for-developers) - [ZEISS & Microsoft - Building the Next Generation Medical Ecosystem in the Cloud](https://www.wearedevelopers.com/videos/424-zeiss-microsoft-building-the-next-generation-medical-ecosystem-in-the-cloud) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Events like RSAC Get You CISOs. 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