Lab, Clinical Research Laboratory Technologist

Castle Biosciences is growing, and we are looking to hire a full‑time Clinical Research Laboratory Technologist working from our Phoenix, AZ office location, with a start date on or before June 30, 2026. Exceptional Benefits Package Excellent Annual Salary + 20% Bonus Potential 20 Accrued PTO Days Annually + 10 Paid Holidays 401K with 100% Company Match up to 6% 3 Health Care Plan Options + Company HSA Contribution Company Stock Grant Upon Hire A DAY IN THE LIFE OF A CLINICAL RESEARCH LABORATORY TECHNOLOGIST This role is a hands‑on bench position focused on supporting clinical research studies. Responsibilities include preparing and processing patient samples, operating laboratory instruments, and executing assays in strict accordance with approved SOPs and study plans. You will work closely with Clinical Research Scientists to support ongoing studies, follow experimental designs, and resolve technical issues to ensure accurate and timely testing. Daily tasks also include maintaining sample tracking and workflows in LIMS, performing routine quality control and equipment maintenance, and documenting results in compliance with quality and regulatory requirements. Depending on study needs, you may perform molecular techniques such as RNA/DNA extraction or PCR‑based assays and support assay development, validation, and data review in a collaborative research laboratory environment.

REQUIREMENTS

Bachelor of Science Degree in Chemistry, Biology, Clinical Laboratory Science, or Medical Technology from an accredited institution, plus 1-2 years of experience in a clinical or research laboratory environment. Alternatively, completion of a 50‑week U.S. military medical laboratory training program may be accepted. Minimum 24 semester hours of medical laboratory technology courses or 24 semester hours of science courses, including 6 semester hours of Chemistry and Biology and an additional 12 semester hours in any combination of Chemistry, Biology, or Medical Laboratory. Technical proficiency, scientific creativity, successful collaboration with others, and independent initiative. The Clinical Research Technologist can be placed on a track toward obtaining American Society of Clinical Pathology (ASCP) Technologist in Molecular Biology (MB) board certification if not already credentialed upon hire.

PREFERRED

Preferred 2-4 years of clinical laboratory experience or 2-4 years of clinical research experience.

SCHEDULE

Monday – Friday, 8:30 pm to 5:00 pm, exempt position, working from our Phoenix, AZ laboratory.

WORK AUTHORIZATION

All candidates must be legally authorized to work in the United States. Currently, Castle Biosciences does not sponsor H‑1B visas, OPT, or employment‑related visas.

ABOUT CASTLE BIOSCIENCES INC.

At Castle, it all comes down to people. After all, disease doesn’t just happen – it happens to people. We believe that disease management and treatment decisions can be better informed through a person’s unique biology, which is revealed through the scientific rigor of our innovative, laboratory‑developed tests. We are committed to empowering healthcare providers and patients with the goal of improved outcomes. Every employee at Castle has an impact on patient care, and we work to ensure that everyone finds their work to be both challenging and rewarding . We behave with integrity and treat our colleagues with respect and kindness . Our culture fosters an environment of trust, transparency, and collaboration . We prioritize and encourage internal growth and professional development . Castle Biosciences is an equal‑opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.

EEO & ACCOMMODATIONS

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