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 GRAIL is seeking a Software Engineer to join the Product Delivery Team. This team designs, builds, and supports software applications and backend services that power internal and external product delivery initiatives across the organization. The team works closely with cross-functional stakeholders to deliver scalable, reliable, and high-quality software solutions that directly support GRAIL's mission of advancing early cancer detection. In this role, you will contribute to the development of production-grade applications and services using modern software engineering practices. You will collaborate with engineers, product managers, and cross-functional teams to build features, improve system reliability, and support ongoing product delivery efforts in a fast-paced, mission-driven environment. GRAIL is moving to Sunnyvale, California in Sept 2026. You may do some interviews at our current location in Menlo Park, CA. GRAIL offers a flexible work arrangement, with the ability to work from GRAIL's office or from home. 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. At our new Sunnyvale campus, Tuesdays and Thursdays are the key days where we encourage on-site presence to engage in events and on-site activities. RESPONSIBILITIES Design, develop, test, and maintain scalable software applications and backend services. Write clean, maintainable, and well-tested code primarily in Python and/or Go. Collaborate with product managers, quality assurance partners, and other engineering teams to deliver high-quality software solutions. Participate in code reviews, troubleshooting, debugging, and performance optimization. Support system reliability, monitoring, and operational excellence initiatives. Contribute to software architecture discussions, technical design, and implementation planning. Work closely with team members in an agile development environment. Evaluate and adopt technologies and tools that improve development efficiency and product delivery. Contribute to technical documentation and knowledge sharing within the team. Demonstrate ownership, initiative, and a proactive approach to solving problems and delivering results. We are considering both SWE and Senior SWE's for this role.  These responsibilities summarize the role's primary responsibilities and are not an exhaustive list. They may change at the company's discretion. REQUIRED QUALIFICATIONS 2+ years of experience building and supporting software applications in a production environment. Strong programming skills in Python and/or Go. Working knowledge of software engineering fundamentals, including APIs, system design, testing, and debugging. Experience working with backend services, distributed systems, or cloud-based applications. Experience with version control systems and modern software development workflows. Strong problem-solving and communication skills. A collaborative, team-oriented mindset and the ability to work effectively across functions. Self-motivation, initiative, and an eagerness to learn new technologies. BS in Computer Science, Engineering, or a related field, or equivalent practical experience. PREFERRED QUALIFICATIONS Experience working with AWS cloud services. Exposure to AI tools, automation tools, or AI-assisted software development workflows. Familiarity with containerization and orchestration technologies such as Docker or Kubernetes. Experience working in agile software development environments. Prior experience in healthcare, biotechnology, or another regulated environment. The expected, full-time, annual base pay scale for this position is $119K-$146. Actual base will depend on your experience level.  This role may be eligible for other forms of compensation, including an annual bonus and/or incentives, subject to the terms of the applicable plans and Company discretion. This range reflects a good-faith estimate of the range that the Company reasonably expects to pay for the position upon hire; the actual compensation offered may vary depending on factors such as the candidate’s qualifications. Employees in this role are also eligible for GRAIL’s comprehensive and competitive benefits package, offered in accordance with our applicable plans and policies. This package currently includes flexible time-off or vacation; a 401(k) retirement plan with employer match; medical, dental, and vision coverage; and carefully selected mindfulness programs.   GRAIL is an equal employment opportunity employer, and we are committed to building a workplace where every individual can thrive, contribute, and grow. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender, gender identity, sexual orientation, age, disability, status as a protected veteran, , or any other class or characteristic protected by applicable federal, state, and local laws. Additionally, GRAIL will consider for employment qualified applicants with arrest and conviction records in a manner consistent with applicable law and provide reasonable accommodations to qualified individuals with disabilities. Please contact us at [email protected] if you require an accommodation to apply for an open position.   GRAIL maintains a drug-free workplace. We welcome job-seekers from all backgrounds to join us!