Zscaler

Principal System and Solution Test Engineer

Zscaler • $185K — $265K *
Information Technology
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • 12+ years of experience in Network Security, SD-WAN, or Networking Infrastructure testing
  • Proficient in Python for test tool development
  • Extensive experience in building and maintaining Test Automation Frameworks using Terraform or CloudFormation
  • In-depth understanding of L2-L7 networking and TCP/IP stack internals
  • Strong knowledge of SD-WAN technologies, VPNs, and Cloud Security architectures
  • Hands-on experience with modern tunneling methods like IPSEC or GRE and public cloud networking in AWS or GCP

Responsibilities

  • Collaborate with cross-functional teams to develop and maintain cloud-based software
  • Test cloud-delivered security and SD-WAN technologies using L2-L7 expertise
  • Build robust system-level automation suites to validate network technologies
  • Provide insights to enhance RASS and overall product usability
  • Design real-world scenario tests to ensure stability for customer deployments

Benefits

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

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

Who You Are (Success Profile)
  • 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.

What We're Looking for (Minimum Qualifications)
  • 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

What Will Make You Stand Out (Preferred Qualifications)
  • 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

#LI-Hybrid #LI-YC2

Zscaler's salary ranges are benchmarked and are determined by role and level. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training.

The base salary range listed for this full-time position excludes commission/ bonus/ equity (if applicable) + benefits.

Base Pay Range

$185,500-$265,000 USD

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

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


Learn more about Zscaler's hybrid working model and benefits here.

About Zscaler

Zscaler is a cloud-based information security company that provides Internet security, web security, firewalls, sandboxing, SSL inspection, antivirus, vulnerability management and granular control of user activity in cloud computing, mobile and Internet of things environments. The company is headquartered in San Jose, California, and has offices in Australia, India, Japan, Singapore, the United Kingdom, and the United States.
Learn more about Zscaler
Size
3,153 employees
Market Cap
$15.5 billion
Industry
Net Income
-$191.4 million
Founded
2008
5 Year Trend
+54.1%
Revenue
$536 million
NASDAQ

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