Staff Software Engineer (Testing, Automation & Networking)

Confirmed live in the last 24 hours

Zscaler

San Jose, California, USA

Hybrid

Posted April 20, 2026

Job Description

About Zscaler

Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability.

We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.

We are looking for a Staff Software Development Engineer to join our Client Connector Team in a hybrid capacity (San Jose - 3 days/week), reporting to the Director of Engineering. Join the Zscaler Client Connector team as a Staff Software Engineer for Test and Automation. You will be responsible for the end-to-end quality and delivery of features targeting Windows and Linux devices. This role requires strong automation development skills, deep networking knowledge, and expertise in observability to ensure product reliability and performance in a fast-paced security environment.

What you’ll do (Role Expectations)

Own end-to-end quality and delivery of new features for Zscaler Client Connector on Windows and Linux, collaborating with Development, Product Management, and Cloud Operations from design through release
Translate requirements into comprehensive test strategies and plans to design and execute functional, system, and automated test suites
Build and maintain a scalable Python-based automation framework and implement CI/CD pipelines for efficient, reliable test execution and reporting
Define and operate system health monitoring and alerting while developing Grafana dashboards for actionable insights into product health, performance, and stability
Analyze results and troubleshoot complex issues to root cause while championing Agile practices, continuous QA improvement, and an inclusive team culture

Who You Are (Success Profile)

You act like an owner, operating with integrity and a bias for action to navigate between high-level strategy and hands-on execution.
You are a high-trust collaborator who embraces a challenge culture with candor and respect to earn trust and drive team success.
You are a learner with a growth mindset, actively seeking feedback to develop yourself and your teammates with purpose.
You think at scale, connecting your daily work to the global mission to build solutions that support a high-growth organization.
You are a problem-solver who is energized by finding solutions to hard challenges, knowing that impact comes from solving the most difficult issues.

What We’re Looking for (Minimum Qualifications)

5+ years of engineering experience with hands-on automation framework design and development in Python, including proficiency with Jenkins and GitLab
Proven track record of test automation across both Windows and Linux platforms
Deep networking knowledge of TCP/IP, protocols (SSL/TLS, HTTPS), and components like proxies or VPNs, plus experience testing network security products and authentication systems
Expertise in troubleshooting and analyzing network logs using Wireshark and tcpdump within an Agile environment
Graduate or Master’s degree in Computer Science or a related field with professional exp

pythongorustawsgcpaidataproductdesign