Our mission is to detect cancer early, when it can be cured. We are working to change the trajectory of cancer mortality and bring stakeholders together to adopt innovative, safe, and effective technologies that can transform cancer care.

We are a healthcare company, pioneering new technologies to advance early cancer detection. We have built a multi-disciplinary organization of scientists, engineers, and physicians and we are using the power of next-generation sequencing (NGS), population-scale clinical studies, and state-of-the-art computer science and data science to overcome one of medicine’s greatest challenges.

GRAIL is headquartered in the bay area of California, with locations in Washington, D.C., North Carolina, and the United Kingdom. It is supported by leading global investors and pharmaceutical, technology, and healthcare companies.

For more information, please visit grail.com

As a Staff Network Engineer at GRAIL, you will be a hands‑on technical leader responsible for building, operating, and evolving our cloud and hybrid network infrastructure. You’ll spend a significant portion of your time designing, implementing, and troubleshooting secure, scalable, and highly available network solutions in AWS (centered on Amazon VPC), while also owning critical on‑prem and data center networking (Juniper/Aruba) and Palo Alto firewalls.

You will both execute (design, configure, implement, monitor, and debug) and provide architectural leadership, standards, and mentorship across teams. A key part of the role includes robust monitoring, logging, dashboarding, and capacity planning to ensure reliable, predictable network performance.

This is a hybrid role based in Menlo Park, CA (moving to Sunnyvale, CA in Fall 2026). Our current flexible work arrangement policy requires that a minimum of 60%, or 24 hours, of your total work week be on-site. Your specific schedule, determined in collaboration with your manager, will align with team and business needs and could exceed the 60% requirement for the site.