Why Join Us? Every millisecond and every bit per second matter when you're defending the world's largest networks. We're looking for a passionate Performance Engineering Manager to lead our performance lab — an effort that spans both development and testing. This isn't only about finding where the product breaks. It's about making our products faster, leveraging and improving our AI infrastructure, and making both our products and our testing dramatically more efficient and robust. You'll lead a team of QA and R&D engineers who design and build the tests, run them, dig into the numbers and the product, and turn what they find into concrete optimization work with development. If you love pushing the limits as much as you love finding the bug that's costing you those limits, this is your role. Key Responsibilities Lead and grow a team of QA and R&D engineers covering both performance development and performance testing Set the technical direction for performance testing methodology, standards, and best practices across the lab, spanning both hardware and software projects Leverage our existing AI infrastructure to make the lab more efficient — faster test cycles, faster analysis, faster answers, and ultimately faster, more optimized products Go beyond identifying regressions: analyze results and actively propose performance optimizations to development teams Increase visibility into performance results across R&D and product leadership, with clear, accessible reporting and dashboards Own the performance strategy for our product lines, from planning and development through execution and reporting Push traffic generator platforms to their limits to simulate real-world network and application traffic at scale Partner with R&D, product management, and architecture teams to define what "great performance" means for our customers Chase down performance bottlenecks at the system, kernel, and network level, and work directly with engineering to fix them Build and maintain