Phlebotomist & Laboratory Technician (Contract)

Onyx Bio | Los Angeles, CA (Clinical Site-Based)

About Onyx Bio

Onyx is building a virtual immune system for faster and safer development of precision medicines. We generate rich, longitudinal multi-omics data in clinical context to deeply profile the progression of autoimmune diseases. As our biorepository grows, we apply advanced AI to immune data, using high-quality cell-based workflows to unlock new treatment and prevention strategies.

Join us to help build the technical backbone that powers AI-driven insights into immune-related disease.

Role Overview

We’re looking for a contract Phlebotomist with experience as a Laboratory Technician to work on-site at a clinical study location in Los Angeles, approximately 3-5 mornings per week on an ongoing basis. You’ll perform venipuncture and process blood, tissue, and other biofluid samples according to SOPs. Full training will be provided on Onyx Bio’s specific sample processing protocols, including PBMC isolation, cryopreservation, and tissue processing. This is a hands-on, independent role—you’ll be the sole Onyx Bio presence at the site and need to execute reliably with minimal day-to-day supervision.

Responsibilities

Perform venipuncture on study participants per protocol and collect blood into specified tube types.
Process blood and biofluid samples per SOP, including centrifugation, aliquoting, and pipetting.
Perform PBMC isolation, cryopreservation, and tissue processing procedures (training provided).
Perform cell counts and viability assessments using automated cell counter.
Label, log, and store all samples per study-specific chain-of-custody requirements.
Coordinate sample shipping: dry ice packaging, courier scheduling, temperature monitoring, and shipping documentation.
Maintain equipment (centrifuges, biosafety cabinet, cell counter) and flag maintenance needs.
Follow all SOPs, document deviations, and maintain accurate batch records.

Requirements

California Certified Phlebotomy Technician (CPT-1 or CPT-2), active and in good standing.
2+ years of phlebotomy experience in a clinical, research, or laboratory setting.
Basic laboratory bench skills: centrifugation, pipetting, aliquoting, and sample labeling.
Comfortable working independently at a clinical site without direct on-site supervision.
Strong attention to detail and ability to follow SOPs precisely.
Familiarity with universal precautions and safe handling of human biospecimens.
Must carry active professional liability insurance.
Must have an independently established business (LLC, sole proprietorship, or equivalent).

Nice to Have

MLT (ASCP), MLS (ASCP), or California CLS credential.
Experience in a clinical research, biobank, or CRO setting.
Experience with PBMC isolation, cryopreservation, or cell counting.
Experience with cold-chain shipping logistics (dry ice, couriers).
IATA dangerous goods shipping certification.
Bilingual (English/Spanish).

Training Provided

Onyx Bio will provide hands-on training on all sample processing protocols, including PBMC isolation (Ficoll), cryopreservation with DMSO, tissue dissociation, and cell viability assessment. Candidates with careful laboratory technique and attention to detail will be fully trained to perform all required procedures.

Compensation & Contract Terms

$29–$39/hr depending on experience.

LA-based, on-site at clinical location. Approximately 3-5 days per week, ongoing.

This is a 1099 contract engagement. No benefits are provided.

Team Values

Why not us? Why not now? Execute quickly and pragmatically to advance ongoing studies.
By any means necessary. Identify and implement practical solutions to keep trials moving.
Discomfort signals growth. Operate comfortably amid evolving protocols and processes.
Own outcomes. Take clear ownership of member experience and data quality, even as a contractor.
Faster together. Collaborate closely with the core Onyx team and fellow contingent staff.

Equal Opportunity

Onyx is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Onyx Bio

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