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Added 1 min ago
Senior Data Engineer
Walmart
BENTONVILLE, AR
…Develops knowledge of current data science and analytics trends. Tech. Problem Formulation: Translates/co-owns business problems within one's discipline to data related or mathematical…
Added 2 mins ago
Senior Staff Full-stack Engineer - Global Payment Network (Remote - Eligible)
Capital One
Charleston, WV
…across organizational boundaries. You will promote a culture of engineering excellence and strike the right balance between lending expertise and providing an inclusive environment where…
Added 2 mins ago
Director, Technical Program Management (Remote-Eligible)
Capital One
Charleston, WV
About the Team: Card Intelligent Decisions & Experiences (CIDX) in Card Tech+ is responsible for the decisioning technology that guides our customers through their entire credit journey -…
Added 8 mins ago
Technical Customer Success Specialist
nVent
Bangalore, IN
Academic background in BE / B. Tech in Electrical or Mechanical Engineering
Added 9 mins ago
Bioprocess Scientist - Advanced Therapies Manufacturing – LNP-mRNA
Lilly
Lebanon, IN
Provide technical support for all start-up TS/MS activities (e.g., NPI, tech transfer, process validation, process stewardship and improvement).
Added 9 mins ago
Senior Staff Full-stack Engineer - Global Payment Network (Remote - Eligible)
Capital One
Indianapolis, IN
…across organizational boundaries. You will promote a culture of engineering excellence and strike the right balance between lending expertise and providing an inclusive environment where…
Added 9 mins ago
Director, Technical Program Management (Remote-Eligible)
Capital One
Indianapolis, IN
About the Team: Card Intelligent Decisions & Experiences (CIDX) in Card Tech+ is responsible for the decisioning technology that guides our customers through their entire credit journey -…
Added 9 mins ago
Scientist/Engineer, Mixed Modality Technical Operations - Lilly Medicine Foundry
Lilly
Lebanon, IN · Indianapolis, IN
…Molecule, Hybrid, or Biologics, and serves as a key integrator with Process Engineering, Process Translation and Execution (PTE), and Product Research and Development (PRD) in introducing…
Added 36 mins ago
Die Maintenance Tech - High Pressure Die Casting
Falcon Lakeside Manufacturing / ArtiFlex Manufacturing
Eau Claire, MI
…downtime, preventing casting defects, and ensuring dies meet engineering, quality, and customer requirements. This position is located at our Eau Claire Facility. First shift,…
Added 36 mins ago
Autonomous Mobility Solutions Engineer
Ford Motor Company
Redford, MI
If you are a high-tech builder, thinker, or innovator who thrives at the intersection of software, hardware, and massive scale, ATP is where you belong. Join us and write the next chapter…
Added 2 hours ago
Solutions Architect
Cisco Systems, Inc.
San Jose, CA
…with global Service Operations, Logistics, Depot Repair, and Engineering teams to compose, implement, and optimize scalable enterprise IT solutions. This role translates sophisticated…
Added 2 hours ago
Executive Assistant, VP, Product Management (Hybrid)
Cisco Systems, Inc.
San Jose, CA
…together product strategy, platform development, applications engineering, and customer enablement. The team focuses on delivering innovative silicon and software solutions across…
Added 4 hours ago
Engineering Program Manager
Cisco Systems, Inc.
Remote, United States
Emerging Tech & Automation: Experience adopting or demonstrating modern AI-assisted engineering workflows, developer tools (such as GitHub Copilot or Cursor), or automated code-validation…
Added 5 hours ago
PF
Experienced Info Security Engineer (AI Automation)
Principal Financial Group
UNAVAILABLE
- $84,600 to $187,200 USD / year
Associate or bachelor’s degree (preference in a computer science, technology, engineering or math-related field) or equivalent experience
Added 6 hours ago
Customer Service Engineer IRP (VA ESOM)
Kentro
Grand Island, NE
Bachelor's degree in computer science, electronics engineering, or other engineering or technical discipline or 8 years of additional relevant experience may be substituted for education.
Added 6 hours ago
Customer Service Engineer (VA ESOM)
Kentro
Fargo, ND
Bachelor's degree in computer science, electronics engineering, or other engineering or technical discipline or 8 years of additional relevant experience may be substituted for education.
Added 6 hours ago
A
QA Tech
Aerotek
Moses Lake, WA
- $18.05 USD / hour
Perform temperature and peroxidase testing to verify product and process parameters.
Added 7 hours ago
Supplier Engineer III Senior - (TKM) (E3)
Applied Materials
Phoenix, AZ
Work with Surface Tech or Quality teams to ensure the integrity and clarity of engineering drawing requirements, make sure all expectations are communicated effectively to supporting…
Added 7 hours ago
AE
Agentic AI Cybersecurity Engineer - Identity Access Lifecycle Management
American Express
Phoenix, AZ
- $103,750 to $174,750 USD / year
Joining Amex Tech means discovering and shaping your contribution to something big. Here, you can work alongside talented tech teams and build a unique career with the Powerful Backing of…
Added 7 hours ago
PT
Electrical and Electronic Engineering Technologists and Technicians
PDS Tech Commercial
Phoenix, AZ
- $29.03 USD / hour
PDS Tech Commercial is partnering with a leading innovator in the aviation industry to hire skilled and motivated Electrical and Electronic Engineering Technologists and Technicians for an…
Added 7 hours ago
PT
Electrical and Electronic Engineering Technologists and Technicians
PDS Tech Commercial
Phoenix, AZ
- $33.3 USD / hour
Keep critical aviation operations running at peak performance. PDS Tech Commercial is partnering with a leading aviation industry organization to hire an experienced Electrical and…
Added 7 hours ago
AI
Utility Sales Support JR00051647
ABB Inc
Southaven, MS
- $83,300 to $133,280 USD / year
Added 7 hours ago
Senior Staff Full-stack Engineer - Global Payment Network (Remote - Eligible)
Capital One
Jackson, MS
…across organizational boundaries. You will promote a culture of engineering excellence and strike the right balance between lending expertise and providing an inclusive environment where…
Added 7 hours ago
Director, Technical Program Management (Remote-Eligible)
Capital One
Jackson, MS
About the Team: Card Intelligent Decisions & Experiences (CIDX) in Card Tech+ is responsible for the decisioning technology that guides our customers through their entire credit journey -…
Added 7 hours ago
Business Development Manager - Equipment & Instrumentation Services (NA)
United States - VWR International LLC
Remote, United States
Experience: 5+ years of progressive experience within engineering, pharmaceutical, equipment management, or a related field required

BillionToOne

Development Associate, Oncology

Menlo Park, CA, United States

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Job details

Posting language: English
Posted: Oct 29, 2026

Original job description

A Rare Opportunity to Shape the Future of Genomics

Join a team of brilliant, passionate innovators determined to transform healthcare. At BillionToOne, we've built a category-defining, publicly traded company on Nasdaq where transparency fuels trust, collaboration drives breakthroughs, and every contribution moves the needle on our mission to make life-changing diagnostics accessible to all. We don't just aim for incremental improvements; we build products that are 10x better than anything that exists today.

Our scientists, engineers, sales executives, and visionaries are united by an unwavering commitment to changing the standard of care in prenatal and cancer diagnostics. This is where cutting-edge science meets human compassion, and every innovation you contribute helps remove the fear of the unknown from some of life's most critical medical moments.

If you're driven by purpose, energized by innovation, and ready to help shape the future of precision medicine at scale, this is where you belong.

We are looking for a Development Associate to join our growing superstar Oncology Development and Process Engineering team in support of clinical patient testing in our high throughput CLIA lab.

This role will enable an individual to gain both deep and broad experience in the areas of molecular assay development, data analysis, experimental design, and automation. The work we do is rewarding and fast paced. It presents many opportunities to deepen your knowledge of the field. This is an on-site role and will require the majority of days to be spent in the Menlo Park office.

Responsibilities:

Assay & Method Development: Develop and extend current assays to better fit evolving clinical needs, with support from scientists, engineers, and other technical staff
Computational Data Analysis: Apply the analytical and computational methods used in current assays, and build upon them to enable new capabilities; develop, implement, and use software tools to quantitatively analyze experiments and processes, requiring moderate proficiency in R or Python
Validation & Regulatory Compliance: Support assay validations and derisking under regulatory and design control frameworks (FDA, MolDx, etc.)
Scientific Communication: Present technical findings and project updates verbally at group meetings and via internal written reports
Wet Lab Execution: Carry out experiments in lab and document experimental procedures and results, and contribute to routine organization of the R&D lab
Tech Transfer: Partner across departments to transfer and scale developed assays and workflows into high-throughput clinical laboratory operations.
Troubleshooting & Root Cause Analysis: Apply sound engineering practices to scale, optimize, and improve molecular biology methods; systematically identify and investigate root sources of variation to develop short-term corrections and long-term preventative measures

Requirements:

Bachelor’s, Master’s, or equivalent degree in Molecular Biology, Biochemistry, Cell Biology, Microbiology, Biophysics, or related fields
At least 12 months of experience with molecular biology techniques (e.g. PCR, electrophoresis, DNA purifications) in a research or clinical laboratory (can be during or after Bachelor’s degree)
Solid foundation in quantitative data analysis, statistics, and experimental design, with familiarity using R or Python (and a strong willingness to expand computational skills).
Clear verbal and written communication skills in reporting to cross-functional teams of scientists and non-scientists
Proven experimental troubleshooting and root-cause analysis skills with sharp attention to detail

Nice-To-Haves:

Start-up experience
Experience with next-generation sequencing (NGS) and/or cell-free DNA
Previous experience with liquid handling or other laboratory automation
Knowledge of molecular oncology
Experience with composing protocols of standard molecular biology techniques

Benefits And Perks:

Working alongside brilliant, kind, passionate and dedicated colleagues, in an empowering environment, toward a global vision, striving for a future in which transformative molecular diagnostics can help millions of patients
Open, transparent culture that includes weekly Town Hall meetings
The ability to indirectly or directly change the lives of hundreds of thousands patients
Multiple medical benefit options; employee premiums paid 100% of select plans, dependents covered up to 80%
Extremely generous Family Bonding Leave for eligible employees (16 weeks, paid at 100%)
Supplemental fertility benefits coverage
Retirement savings program including a 4% Company match
Increase paid time off with increased tenure
Latest and greatest hardware (laptop, lab equipment, facilities)
Free daily on-site lunches provided from top eateries
A variety of perks on campus (shuttle to and from select transit hubs, state of the art gym, restaurant)
Free on-site EV charging (compatible with all EVs, including Tesla)

At BillionToOne, we are proud to offer a combination of a (1) base pay range (actual amount offered is based on experience and salary/equity options split that the candidate chooses) (2) generous equity options offering, on top of (3) industry leading company benefits (free healthcare options, 401k match, very generous fully paid paternal leave etc.).

For this position, we offer a total compensation package of $105,737 per year, including a base pay range of $76,155 - $87,034 per year.

BillionToOne is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

For more information about how we protect your information, we encourage you to review our Privacy Policy.

BillionToOne is a next-generation molecular diagnostics company on a mission to make powerful, accurate diagnostic tests accessible to everyone. Our revolutionary QCT molecular counting technology enhances disease detection resolution by over a thousandfold using cell-free DNA,a breakthrough that has already transformed the lives of over half a million patients worldwide.

Our Impact

Unity Complete™ is the only non-invasive prenatal screen capable of assessing fetal risk for both common recessive conditions and aneuploidies from a single maternal blood sample. Unity Confirm™ enables non-invasive confirmation for high-risk screening results through the capture of intact circulating fetal cells using BillionToOne’s Fetal Cell Capture™ Technology. Our Northstar® liquid biopsy test uniquely combines treatment selection with real-time monitoring, giving oncologists unprecedented precision in cancer care.

Our Growth

From $0 to $400M+ annualized revenue run-rate in just 6 years. In 2025, we completed one of the most successful IPOs for a medical diagnostics company, building on nearly $400M in private funding,including our $130M Series D in 2024 and backed by world-class investors including Hummingbird, Adams Street Partners, Neuberger Berman, Baillie Gifford, and Premji Invest.

Our Recognition

Forbes named us one of America's Best Startup Employers for 2025 and we're Great Place to Work certified, with 100% of our people willing to go the extra mile, even as we've scaled to over 700 employees.

Our Future

Headquartered in Menlo Park with facilities in Union City, CA, and a new lab opening in Austin, TX in 2027, we're continuing to push the boundaries of what's possible in molecular diagnostics. We're just getting started.

Ready to help us change the world, one molecule at a time? Learn more at billiontoone.com

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