The Lab Software team builds and operates the core software systems that make these laboratories possible. We develop the software platform that orchestrates sample processing, provides real-time laboratory visibility, maintains complete sample traceability, and enables laboratory operators to confidently run complex workflows at scale. Our systems sit at the intersection of software engineering, laboratory automation, and clinical operations. They must be highly reliable, fault tolerant, and compliant with GxP requirements while supporting continuous innovation and increasing laboratory throughput. We're looking for a Senior or Staff Software Engineer to help shape the next generation of GRAIL's laboratory platform. Leveling will be determined based on experience and demonstrated impact. This role is based in either in Durham NC or Menlo Park, California. Our Menlo Park office will move to Sunnyvale, California in Fall 2026. GRAIL offers a flexible work arrangement, with the ability