Do you want to join one of the fastest-growing molecular diagnostics startups and develop products that can affect the lives of millions?

BillionToOne (Y Combinator S17), ranked at the top 5% of Y Combinator companies with $100M+ in funding from prominent VC firms, has developed a DNA molecular counter that increases the cell-free DNA diagnostics resolution by over 1,000 fold. BillionToOne's first product, UNITY™ is the first and only prenatal screen that directly assesses the baby's risk for common and severe inherited disorders such as cystic fibrosis, spinal muscular atrophy (SMA), and hemoglobinopathies from a single tube of blood from the pregnant mother.

We are looking for a Production Lab Associate to join our growing superstar Clinical Operations team responsible for the processing of pregnancy blood samples in a high complexity CLIA setting. The PLA I is responsible for assisting Clinical Laboratory Scientist (CLS) with the day-to-day operations and sample processing in the Clinical Laboratory. The PLA I will also be responsible for the operating high throughput liquid handlers used in patient testing under CLS supervision, performing quality assurance procedures, and complying with all local, state, and federal laboratory requirements. Hours and days may vary depending upon operational needs. This is an onsite role.


  • Prepare samples, reagents, and consumables to assist the Clinical Laboratory Scientist during clinical patient testing
  • Operate liquid handlers and other instruments for patient testing under supervision of Clinical Laboratory Scientist
  • Recognizes, documents, and escalates protocol deviations in lab to lead/supervisor
  • Maintain sufficient inventory of material, supplies and equipment in the laboratory for performance of duties
  • Document all corrective actions taken when test systems deviate from the laboratory’s established performance specifications
  • Perform equipment maintenance according to laboratory procedures
  • Assist with training of new laboratory personnel and training of new procedures with existing personnel
  • Assist with internal audits and inspection preparation, as needed
  • Write and review controlled documents as assigned
  • Clean racks and other laboratory supplies
  • Manage sample retains inventory


  • Bachelor’s degree or equivalent degree in biology or clinical related sciences
  • At least 6 months of experience with molecular biology techniques in a research or clinical laboratory
  • Excellent attention to detail
  • Effective written and verbal communication skills
  • The ability to multitask and work independently
  • Previous clinical laboratory experience is preferred
  • Ideal candidate would want to become a Clinical Laboratory Scientist


  • Start-up experience
  • Knowledge of medical genetics
  • Experience in a cell-free DNA setting

Benefits and Perks

  • Competitive pay
  • Generous equity package
  • Suite of benefit plans; employee premiums paid 90% of Gold PPO plan
  • Extremely generous Medical, Pregnancy, Parental and Family Leaves
  • Retirement savings program with 4% Company matching
  • Free daily on-site lunches provided from top eateries
  • Latest and greatest hardware (laptop, lab equipment, facilities)
  • A variety of perks on campus (state of the art gym, restaurant)
  • Free on-site EV charging (compatible with all EVs, including Tesla)
  • Working with a team of ‘rockstars’ who bring out the best in everyone
  • The ability to indirectly or directly change the lives of hundreds of thousand patients
  • Open, transparent culture that includes weekly Town Hall meetings

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.

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