Real job — pulled straight from Grail’s careers page · Verified July 16, 2026 · No reposts.
Job description
Grail is hiring a Senior Data Scientist — a full-time, based in Menlo Park, CA role ($156k–$187k). Apply directly on Grail's careers page below.
Senior Data Scientist #4630
Team: Research
Location: Menlo Park, CA
Commitment: Full-Time
Workplace Type: hybrid
GRAIL is seeking a Senior Data Scientist to join the Machine Learning team within the Computational Biology and Machine Learning (CBML) group. In this role, you will work at the intersection of machine learning, genomics, and clinical science to advance early cancer detection. You will collaborate closely with scientists, engineers, and clinicians to identify novel biological signals, improve classification performance, and develop innovative approaches for cancer detection and categorization using GRAIL’s rich sequencing datasets.
This is a highly impactful role where you will apply state-of-the-art machine learning techniques—including modern AI approaches—to real-world clinical challenges. Your work will directly contribute to scientific discoveries, peer-reviewed publications, and the development of transformative products for early cancer detection.
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 40%, or 16 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 40% requirement for the site.
Responsibilities:
- Envision, design, and lead projects to evaluate and improve machine learning classifier performance for cancer detection
- Collaborate cross-functionally with scientists, engineers, and clinicians to plan, execute, and interpret experiments
- Develop high-quality, reproducible, and scalable software aligned with sound engineering principles
- Apply best practices in machine learning and statistics to generate robust, interpretable, and reliable results
- Analyze large-scale sequencing and genomics datasets to extract meaningful biological insights
- Contribute to the development and evaluation of novel machine learning methods, including deep learning approaches
- Communicate findings and present updates regularly in technical and cross-functional forums
- Contribute to scientific publications, internal tools, and production systems
Required Qualifications
- Ph.D. in Bioinformatics, Computational Biology, Computer Science, Statistics, Machine Learning, or a related field with 2+ years of relevant experience, OR
M.S. with 4+ years of relevant experience, OR
B.S. with 6+ years of relevant experience, or equivalent practical experience - 2+ years of experience applying machine learning or statistical modeling in a research or production environment
- Strong expertise in data analysis using Python or R
- Deep understanding of modern machine learning and statistical methods
- Experience developing reproducible, well-structured code in a collaborative environment
- Strong written and verbal communication skills
Preferred Qualifications:
- Experience with modern AI techniques, including deep learning and/or large language model (LLM) training or adaptation
- Experience working with sequencing or genomics data and deriving biological insights
- Track record of scientific contributions (e.g., publications, tools, datasets, patents, or conference presentations)
- Experience with system-level programming languages (e.g., Go, Java, C, C++)
- Familiarity with version control (e.g., Git) and reproducible research practices in Linux environments
- Demonstrated ability to independently drive projects while collaborating effectively across teams
- Interest in translating research innovations into production-ready systems
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Frequently asked questions
What is the salary for Senior Data Scientist at Grail?
The estimated salary range for Senior Data Scientist at Grail is $156,000 - $187,000 USD per year.
What skills are required for Senior Data Scientist at Grail?
The required skills for Senior Data Scientist at Grail include: Machine Learning, Python, R, Deep Learning, Git, Linux.
What is the seniority level for Senior Data Scientist at Grail?
Senior Data Scientist at Grail is a Senior level position.
How do I apply for Senior Data Scientist at Grail?
You can view the full description and apply for Senior Data Scientist at Grail on EchoJobs: https://echojobs.io/job/grail-senior-data-scientist-4630-qq5j8.