Principal SDET Engineer (Cortex Cloud)

Palo Alto Networks
Full_time$147k-238k/year (USD)Santa Clara, United States

📍 Job Overview

  • Job Title: Principal SDET Engineer (Cortex Cloud)
  • Company: Palo Alto Networks
  • Location: Santa Clara, California, United States
  • Job Type: Full-time
  • Category: Web Technology
  • Date Posted: 2025-06-25
  • Experience Level: 10+ years
  • Remote Status: Hybrid (3 days/week in-office)

🚀 Role Summary

  • Key Web Technology Aspects:
    • Lead test design and strategy for high-priority, high-impact product features in Cortex Cloud, Palo Alto Networks' fastest-growing cloud security platform.
    • Enhance test automation efficiency and drive improvements in functionality, usability, testability, performance, and production stability.
    • Collaborate with cross-functional teams, including engineering, product management, UX, documentation, DevOps, and customer engineering teams throughout the product lifecycle.

💻 Primary Responsibilities

  • Test Strategy & Design:

    • Design and develop comprehensive test plans and strategies for complex, large-scale features.
    • Tackle the challenges of test strategy for enterprise-grade products and applications.
    • Navigate the complexity of cloud platforms and drive improvements in overall product quality.
  • Test Automation & Efficiency:

    • Establish a standardized methodology for developing and maintaining test automation across the team.
    • Design, develop, and maintain test automation tools and utilities for both backend and UI components.
    • Define, develop, and manage complex testbed environments to support varied test scenarios.
    • Enhance test automation frameworks to ensure they are developer-friendly, robust, highly maintainable, support detailed reporting, facilitate easy debugging, and seamlessly integrate with CI/CD and bug tracking systems for cloud-based applications.
  • Product Quality & Decision-Making:

    • Contribute to product decision-making by providing insights into product quality and influencing the development of cutting-edge cybersecurity solutions.
    • Analyze complex issues and defects, guiding root cause analysis during and after releases.
    • Take a leadership role in evolving software testing processes and best practices.
    • Define and implement processes for building bi-directional feedback loops with customers to improve quality and satisfaction.
  • Team Leadership & Mentorship:

    • Mentor and coach junior QA team members, fostering a culture of growth and excellence.
    • Actively participate in the hiring process and technical interviews for new team members.
    • Demonstrate clear and effective verbal communication skills in team and cross-functional interactions.

🎓 Skills & Qualifications

Education:

  • Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related field.

Experience:

  • 9+ years of experience in technical QA roles within large-scale enterprises or high-growth startups.
  • Strong programming skills in Python; experience with additional languages is a plus.
  • Deep understanding of public cloud platforms, including AWS, GCP, and Azure.
  • Demonstrated experience in developing complex test frameworks from scratch, with a strong focus on scalability and efficiency.
  • Proven ability to quickly adapt to new technologies, tools, and automation frameworks (Pytest, Selenium, etc.).
  • Extensive experience in leading QA efforts for distributed systems and SaaS-based products.
  • Expertise in designing and implementing robust test strategies for complex, large-scale systems.
  • Hands-on experience with backend and frontend testing frameworks; passionate about driving continuous improvement in test infrastructure and coverage.
  • Strong troubleshooting skills and proficiency in building and maintaining test tools and automation pipelines.
  • Proven ability to work efficiently with cross-functional teams to identify issues, drive resolutions, and deliver high-quality outcomes.
  • Excellent collaboration skills; a team player with strong ownership and accountability.
  • Experience in the cloud security industry, or equivalent relevant experience, is advantageous.

Required Skills:

  • Technical QA
  • Programming Skills (Python)
  • Public Cloud Platforms (AWS, GCP, Azure)
  • Test Frameworks (Pytest, Selenium)
  • Backend Testing
  • Frontend Testing
  • Troubleshooting Skills
  • Collaboration Skills
  • Cloud Security

Preferred Skills:

  • Experience with additional programming languages
  • Familiarity with cloud security industry trends and best practices

📊 Web Portfolio & Project Requirements

Portfolio Essentials:

  • A comprehensive portfolio showcasing your experience in designing and implementing test strategies for complex, large-scale systems.
  • Examples of test automation tools and utilities developed for both backend and UI components.
  • Case studies demonstrating your ability to drive improvements in overall product quality and enhance test automation efficiency.

Technical Documentation:

  • Detailed documentation of test plans, strategies, and automation frameworks developed.
  • Evidence of continuous improvement in test infrastructure and coverage.
  • Examples of bi-directional feedback loops with customers to improve quality and satisfaction.

💵 Compensation & Benefits

Salary Range:

  • $147,000 - $237,500 YEAR

Benefits:

  • FLEXBenefits wellbeing spending account with over 1,000 eligible items selected by employees.
  • Mental and financial health resources.
  • Personalized learning opportunities.
  • Restricted stock units.
  • Bonus.

Working Hours:

  • Full-time (40 hours/week) with a hybrid work arrangement (3 days/week in-office).

🎯 Team & Company Context

Company Culture:

  • Industry: Cybersecurity
  • Company Size: Large (over 10,000 employees)
  • Founded: 2005
  • Team Structure:
    • The Cortex Cloud team consists of top minds in cybersecurity and automation, fostering an innovative culture where your ideas for smarter, faster, and more secure testing will be valued and implemented.
    • The team collaborates closely with cross-functional roles and peers to achieve shared product quality goals.
  • Development Methodology:
    • Agile/Scrum methodologies and sprint planning for web projects.
    • Code review, testing, and quality assurance practices.
    • Deployment strategies, CI/CD pipelines, and server management.

Company Website: Palo Alto Networks

📝 Enhancement Note: Palo Alto Networks is a market leader in cybersecurity, providing a fast-growing cloud security platform trusted by leading organizations around the globe. The Cortex Cloud team offers a high-velocity environment where career growth and impact go hand in hand, with opportunities to take ownership, lead initiatives, and grow your technical expertise.

📈 Career & Growth Analysis

Web Technology Career Level:

  • Principal SDET Engineer is a senior-level role, responsible for leading test design and strategy, enhancing test automation efficiency, and contributing to product decision-making.

Reporting Structure:

  • Reports directly to the Engineering Manager or Director of QA.
  • Collaborates closely with cross-functional teams, including engineering, product management, UX, documentation, DevOps, and customer engineering teams.

Technical Impact:

  • Directly contributes to protecting the world's most critical digital assets by ensuring Cortex Cloud solutions are secure, stable, and production-ready.
  • Influences the development of cutting-edge cybersecurity solutions by providing insights into product quality.

Growth Opportunities:

  • Technical Skill Development: Expand your expertise in cloud security, test automation, and product quality best practices.
  • Technical Leadership: Take ownership of initiatives, mentor junior team members, and drive improvements in software testing processes and best practices.
  • Architecture Decisions: Contribute to product decision-making and influence the development of cutting-edge cybersecurity solutions.

📝 Enhancement Note: As a Principal SDET Engineer at Palo Alto Networks, you will have the opportunity to grow your technical expertise in cloud security, test automation, and product quality. You will also have the chance to take ownership of initiatives, mentor junior team members, and contribute to product decision-making, ultimately driving the success of Cortex Cloud and your own career growth.

🌐 Work Environment

Office Type:

  • Hybrid (3 days/week in-office) with a casual, collaborative workspace that fosters problem-solving and trusted relationships.

Office Location(s):

  • Santa Clara, California, United States

Workspace Context:

  • Collaborative Workspace: Encourages casual conversations, problem-solving, and trusted relationships.
  • Development Tools: Multiple monitors, testing devices, and other resources to support varied test scenarios.
  • Cross-Functional Collaboration: Close collaboration with engineering, product management, UX, documentation, DevOps, and customer engineering teams throughout the product lifecycle.

Work Schedule:

  • Full-time (40 hours/week) with a hybrid work arrangement (3 days/week in-office), fostering flexibility for deployment windows, maintenance, and project deadlines.

📝 Enhancement Note: Palo Alto Networks' hybrid work environment offers a balance between in-office collaboration and remote flexibility. This setup fosters casual conversations, problem-solving, and trusted relationships, ultimately driving the success of Cortex Cloud and your own career growth.

📄 Application & Technical Interview Process

Interview Process:

  • Technical Preparation: Brush up on your Python programming skills, familiarity with public cloud platforms (AWS, GCP, Azure), and experience with test automation frameworks (Pytest, Selenium).
  • Product Quality Assessment: Demonstrate your ability to analyze complex issues, guide root cause analysis, and drive improvements in functionality, usability, testability, performance, and production stability.
  • Collaboration & Communication: Showcase your ability to work efficiently with cross-functional teams, identify issues, drive resolutions, and deliver high-quality outcomes.
  • Final Evaluation: Present your insights into product quality, influence the development of cutting-edge cybersecurity solutions, and contribute to product decision-making.

Portfolio Review Tips:

  • Portfolio Structure: Organize your portfolio around your experience in designing and implementing test strategies for complex, large-scale systems.
  • Case Studies: Highlight your ability to drive improvements in overall product quality, enhance test automation efficiency, and build bi-directional feedback loops with customers.
  • Technical Documentation: Include detailed documentation of test plans, strategies, and automation frameworks developed.

Technical Challenge Preparation:

  • Challenge Format: Familiarize yourself with the typical web development exercise format and expectations for technical challenges in SDET roles.
  • Time Management: Practice time management strategies and solution architecture for web challenges.
  • Communication: Rehearse clear and effective verbal communication skills to articulate technical concepts and explain your thought process.

ATS Keywords:

  • Programming Languages: Python, additional languages (bonus)
  • Web Frameworks: N/A (focus on backend and UI testing)
  • Server Technologies: AWS, GCP, Azure
  • Databases: N/A (focus on cloud-based applications)
  • Tools: Pytest, Selenium, CI/CD pipelines, bug tracking systems
  • Methodologies: Agile/Scrum, test-driven development, continuous integration/continuous deployment
  • Soft Skills: Collaboration, communication, problem-solving, leadership, mentoring
  • Industry Terms: Technical QA, SDET, cloud security, test automation, product quality, bi-directional feedback loops

📝 Enhancement Note: To excel in the application and interview process for the Principal SDET Engineer role at Palo Alto Networks, focus on demonstrating your technical expertise in Python programming, public cloud platforms, and test automation frameworks. Showcase your ability to collaborate with cross-functional teams, analyze complex issues, and drive improvements in product quality. Prepare for technical challenges by practicing time management strategies and refining your communication skills.

🛠 Technology Stack & Web Infrastructure

Frontend Technologies:

  • N/A (focus on backend and UI testing)

Backend & Server Technologies:

  • Backend Technologies: Python, additional languages (bonus)
  • Server Technologies: AWS, GCP, Azure

Development & DevOps Tools:

  • Test Automation Tools: Pytest, Selenium
  • CI/CD Pipelines: Jenkins, GitLab CI/CD, or similar tools
  • Monitoring Tools: Cloud-based application monitoring tools (e.g., New Relic, Datadog, or similar tools)

📝 Enhancement Note: As a Principal SDET Engineer at Palo Alto Networks, you will work with a technology stack focused on backend and server technologies, with a strong emphasis on Python programming, public cloud platforms (AWS, GCP, Azure), and test automation frameworks (Pytest, Selenium). Familiarize yourself with CI/CD pipelines and cloud-based application monitoring tools to excel in your role.

👥 Team Culture & Values

Web Development Values:

  • Innovation: Collaborate with top minds in cybersecurity and automation to drive smarter, faster, and more secure testing.
  • Quality: Ensure Cortex Cloud solutions are secure, stable, and production-ready by enhancing test automation efficiency and driving improvements in overall product quality.
  • Collaboration: Work closely with cross-functional teams, including engineering, product management, UX, documentation, DevOps, and customer engineering teams throughout the product lifecycle.
  • Continuous Learning: Stay up-to-date with emerging technologies, tools, and best practices in cloud security and test automation.

Collaboration Style:

  • Cross-Functional Integration: Collaborate closely with developers, designers, and stakeholders to achieve shared product quality goals.
  • Code Review Culture: Participate in code reviews to ensure code quality, maintainability, and performance optimization.
  • Knowledge Sharing: Share your expertise with junior team members and contribute to a culture of growth and excellence.

📝 Enhancement Note: As a Principal SDET Engineer at Palo Alto Networks, you will be part of an innovative team that values collaboration, continuous learning, and a strong focus on product quality. By working closely with cross-functional teams and contributing to a culture of growth and excellence, you will help drive the success of Cortex Cloud and your own career growth.

🌐 Challenges & Growth Opportunities

Technical Challenges:

  • Cloud Platform Complexity: Navigate the complexity of cloud platforms and drive improvements in overall product quality.
  • Test Strategy for Enterprise-Grade Products: Design and implement robust test strategies for complex, large-scale systems.
  • Performance Optimization & Scalability: Ensure Cortex Cloud solutions are secure, stable, and production-ready by enhancing test automation efficiency and driving improvements in functionality, usability, testability, performance, and production stability.

Learning & Development Opportunities:

  • Technical Skill Development: Expand your expertise in cloud security, test automation, and product quality best practices.
  • Conference Attendance & Certification: Attend industry conferences, obtain relevant certifications, and engage with the cloud security community to stay up-to-date with emerging trends and best practices.
  • Technical Mentorship & Leadership: Mentor junior team members, take ownership of initiatives, and contribute to product decision-making to drive the success of Cortex Cloud and your own career growth.

📝 Enhancement Note: As a Principal SDET Engineer at Palo Alto Networks, you will face technical challenges related to cloud platform complexity, test strategy for enterprise-grade products, and performance optimization. To overcome these challenges, focus on expanding your expertise in cloud security, test automation, and product quality best practices. Engage with the cloud security community, attend industry conferences, and obtain relevant certifications to stay up-to-date with emerging trends and best practices. By mentoring junior team members and contributing to product decision-making, you will help drive the success of Cortex Cloud and your own career growth.

💡 Interview Preparation

Technical Questions:

  • Python Programming: Demonstrate your proficiency in Python programming, including familiarity with relevant libraries, frameworks, and best practices.
  • Cloud Platforms: Showcase your understanding of public cloud platforms (AWS, GCP, Azure) and their relevance to cloud security and test automation.
  • Test Automation Frameworks: Explain your experience with test automation frameworks (Pytest, Selenium) and their application in enterprise-grade products and applications.
  • Product Quality Assessment: Articulate your ability to analyze complex issues, guide root cause analysis, and drive improvements in functionality, usability, testability, performance, and production stability.

Company & Culture Questions:

  • Cortex Cloud Team: Demonstrate your understanding of the Cortex Cloud team's innovative culture, collaboration style, and commitment to driving product quality and security.
  • Cloud Security Industry: Showcase your familiarity with cloud security industry trends, best practices, and emerging technologies.
  • Product Quality & Decision-Making: Explain your approach to contributing to product decision-making, providing insights into product quality, and influencing the development of cutting-edge cybersecurity solutions.

Portfolio Presentation Strategy:

  • Portfolio Structure: Organize your portfolio around your experience in designing and implementing test strategies for complex, large-scale systems.
  • Case Studies: Highlight your ability to drive improvements in overall product quality, enhance test automation efficiency, and build bi-directional feedback loops with customers.
  • Technical Documentation: Include detailed documentation of test plans, strategies, and automation frameworks developed.

📝 Enhancement Note: To excel in the interview process for the Principal SDET Engineer role at Palo Alto Networks, focus on demonstrating your technical expertise in Python programming, public cloud platforms, and test automation frameworks. Showcase your ability to collaborate with cross-functional teams, analyze complex issues, and drive improvements in product quality. Prepare for company and culture questions by researching the Cortex Cloud team's innovative culture, collaboration style, and commitment to driving product quality and security. Tailor your portfolio presentation strategy to highlight your experience in designing and implementing test strategies for complex, large-scale systems.

📌 Application Steps

To apply for this Principal SDET Engineer (Cortex Cloud) position at Palo Alto Networks:

  1. Portfolio Customization: Tailor your portfolio to showcase your experience in designing and implementing test strategies for complex, large-scale systems, with a focus on cloud security and test automation.
  2. Resume Optimization: Highlight your relevant project experience, technical skills, and achievements in cloud security, test automation, and product quality.
  3. Technical Interview Preparation: Brush up on your Python programming skills, familiarity with public cloud platforms (AWS, GCP, Azure), and experience with test automation frameworks (Pytest, Selenium). Practice time management strategies and refine your communication skills to articulate technical concepts and explain your thought process.
  4. Company Research: Familiarize yourself with Palo Alto Networks' commitment to being the cybersecurity partner of choice, protecting the world's digital way of life, and driving innovation in cloud security.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and web development/server administration industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

Application Requirements

Candidates should have 9+ years of experience in technical QA roles and strong programming skills in Python. A deep understanding of public cloud platforms and experience in developing complex test frameworks is essential.