Proofpoint Software Development Engineer in Test (SDET) in San Francisco, California

Software Development Engineer in Test (SDET)

Location:San Francisco, CA


Company Overview

At Proofpoint, we have a passion for protecting people, data, and brands from today’s advanced threats and compliance risks. We hire the best people in the business to:

  • Build and enhance our proven security platform

  • Blend innovation and speed in a constantly evolving cloud architecture

  • Analyze new threats and offer deep insight through data-driven intel

  • Collaborate with customers to help solve their toughest security challenges

We are singularly devoted to helping our customers protect what matters most. That’s why we’re a leader in next-generation cybersecurity—and why more than half of the Fortune 100 trust us as a security partner.

The Role

We seek an engineer who is passionate about software quality to join our test team! You will test the high-performance Cloudmark Security Platform, and your contribution will improve its protection for customers in email and mobile network environments around the world. Our test team works in close collaboration with developers, product management, and customer support to understand customer needs and ensure our software meets customer expectations.

In this role, you will find bugs and get them fixed. You will get to exercise your intellectual curiosity to find ways to break our software – before customers or threat actors do.

This role is on-site in our San Francisco, SoMa district, office ideally situated for Muni Metro and Caltrain. We provide in-office bicycle parking.

Your day-to-day

  • Test our software to reveal bugs before we release it to customers or production systems

  • Investigate new code to discover flaws and risks

  • Isolate root causes of bugs and problem software behavior

  • Build multi-system test environments and automated test suites

  • Collaborate with developers, product managers, operations engineers, and fellow test engineers to create and execute an effective testing strategy

  • Learn how Proofpoint’s technology works, and evolve your skills with it.

What you bring to the team

A solid understanding of how computers work and how software breaks (what causes crashes, how to find memory leaks, etc.)

  • Excellent written and verbal communication skills.

  • An ability to workwith a minimum of supervision while collaborating with colleagues in multiple departments and time zones.

  • Strong scripting / automation skills (Python, bash)

  • Solid Linux admin skills (not necessarily a professional sysadmin, but at least a talented amateur)

  • Familiarity with C and the use of Linux environment debugging tools (strace, gdb)

  • A conceptual grasp of application-level Internet protocols, and how to use Linux network traffic analysis tools (netstat, tcpdump, Wireshark)

  • Familiarity with VMWare and Docker, and the experience to know when to choose one over the other

  • Possible leadership opportunity as we grow in the future

  • Bachelor's degree or equivalent industry experience, and 4+ years of professional experience as a software test engineer, system programmer, software developer, system administrator, developer support engineer, or sales engineer, working in a Linux environment.

Why Proofpoint

As a customer focused and driven-to-win organization with leading edge products, there are many exciting reasons to join the Proofpoint team. We believe in hiring the best the brightest and cultivating a culture of collaboration and appreciation. As we continue to grow and expand globally, we understand that hiring the right people and treating them well is key to our success! We are a multi-national company with locations in 10 countries, with each location contributing to Proofpoint’s amazing culture!


Proofpoint is an equal opportunity employer and welcomes applications from all qualified individuals regardless of race, sex, disability, religion/belief, sexual orientation or age.

Proofpoint does not accept unsolicited resumes from external recruiters or employment agencies. In the absence of a signed Recruitment Services Agreement, Proofpoint will not consider or agree to payment of any recruiter or agency fee. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement, Proofpoint explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.