Lab, Molecular Technologist

Castle Biosciences, Inc.; Scottsdale (AZ); On-site; USD 85,000 - 105,000; Full time

Benefits offered by this job

Bonus potential

PTO 20 days

Paid holidays

401K match up to 6%

HSA contribution

Stock grant

Job summary

Castle Biosciences Inc. is seeking a Molecular Technologist to join our Scottsdale, AZ laboratory for a start date of October 30, 2026. The role focuses on RNA extraction, PCR, QC, and instrument maintenance within a collaborative team.

Qualifications include a Bachelor of Science in chemistry, biology, clinical laboratory science, or medical technology, plus 1–2 years in a molecular testing setting. Competitive salary and bonus potential are offered along with comprehensive benefits.

Qualifications

• 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 molecular biology testing environment, clinical, or equivalent laboratory environment.
• AND completion of a clinical laboratory training program, OR at least 3 months of documented laboratory training in each specialty area where high-complexity testing will be performed.

Responsibilities

• Extraction and analyzing RNA samples using molecular techniques.
• RNA quantification, PCR, quality control of reagents, and instrument maintenance.
• Interpret data and ensure accuracy and reliability of results.
• Collaborate with team members to maintain workflow efficiency.

Skills

Molecular biology

Quality control

Data interpretation

Team collaboration

Independent thinking

Education

Bachelor of Science in Chemistry, Biology, Clinical Laboratory Science, or Medical Technology

Job description

Castle Biosciences Earns "Top Workplaces USA Award" for Phoenix, Pittsburgh, and Friendswood!

Learn more: www.CastleBiosciences.com

Castle Biosciences Inc. is growing, and we are looking to hire Molecular Technologists working from our laboratory in Scottsdale, AZ. with a start date of October 30, 2026.

Why Castle Biosciences?

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 Laboratory, Molecular Technologist

A typical day for a molecular technologist involves extraction and analyzing RNA samples using various molecular laboratory techniques. This includes RNA quantification, PCR, quality control of reagents, and instrument maintenance, all while interpreting data, and ensuring the accuracy and reliability of results. Collaborating with team members is also integral, ensuring optimal workflow and overall efficiency in the lab.

The role of the molecular technologist entails proficiency in molecular techniques, maintaining optimal working conditions, and ensuring stringent quality control measures.

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 molecular biology testing environment, clinical, or equivalent laboratory environment. And/or have completion of military training for laboratory technicians as high complexity testing personnel. Completion of a 50-week U.S. military medical laboratory training program
• Minimum coursework and training requirements:
  • 24 semester hours of medical laboratory technology courses or 24 semester hours of science courses, including 6 semester hours of both Chemistry & Biology & an additional 12 semester hours in any combination of Chemistry, Biology, or Medical Laboratory Science.
  • AND Completion of a clinical laboratory training program, OR at least 3 months of documented laboratory training in each specialty area where the individual will perform high-complexity testing.
• Technical proficiency, scientific creativity, successful collaboration with others, and independent thought.
• The Molecular Technologists in the clinical laboratory are placed on a track towards obtaining American Society of Clinical Pathology (ASCP) Technologist in Molecular Biology (MB) board certification if not already credentialed upon hire and expected to obtain such a certification within 2 years of employment. (Only applicable to PHX)

SCHEDULE

• Monday-Friday and some potential weekends, from 8:30 AM - 5:00 PM, exempt position, working from the Scottsdale, AZ. laboratory location.

Castle Biosciences Awards and Research Developments!

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.

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