Lab Associate - Weekend Shift

ABOUT US

Rythm is the fastest-growing lab in America. We redefined at-home testing with the world’s easiest blood test and created a culture around monthly lab testing from home. We’ve processed millions of tests across all 50 states, and we do everything in-house, from sample testing and logistics to code, marketing, and design. That vertical integration gives us the speed, control, and creativity to shape the future of health and wellness.

Our laboratory operates under CLIA certification and CAP accreditation, ensuring that all specimen handling and testing procedures meet rigorous regulatory and quality assurance standards.

ABOUT THE ROLE

Rythm Health is seeking a Laboratory Associate (2nd Shift) to support day-to-day laboratory operations. The required work schedule is Tuesday, Wednesday, Thursday, Saturday, and Sunday.

The ideal candidate is reliable, detail-oriented, and comfortable working in a regulated clinical laboratory environment. This role involves data entry, sample accessioning, and processing in accordance with established procedures.

WHAT YOU'LL DO

• Accurately receive, accession, and track incoming specimens using laboratory information systems (LIS).
• Verify specimen integrity, labeling accuracy, and documentation compliance.
• Aliquot and prepare blood samples according to established protocols.
• Enter, review, and maintain accurate electronic laboratory records.
• Adhere to CLIA/CAP-compliant SOPs, laboratory safety requirements, and quality assurance procedures.
• Maintain a clean, organized, and compliant laboratory workspace.
• Communicate specimen status and promptly escalate issues to the Lab Supervisor.
• Support additional laboratory tasks as needed to meet operational demands.
• *Work Schedule: 2nd shift required. Typical hours: 4:00 PM – 12:00 AM, with flexibility based on operational needs.

WHAT WE'RE LOOKING FOR

• Bachelor’s degree or above in biology, chemistry, medical laboratory science, or a related field.
• Comfortable working with computer software, LIS, and clinical lab equipment.
• Strong attention to detail and organizational skills.
• Ability to perform repetitive tasks accurately and efficiently.
• Ability to handle blood specimens in a laboratory setting.
• Reliable, punctual, and able to work both independently and as part of a team.

WHAT’S IN IT FOR YOU?

Rythm Health offers a benefits package which includes:

• Highly competitive base salary.
• Meaningful work that genuinely impacts people’s lives.
• Equity: Meaningful equity stake aligned with the scope and seniority of this role.
• Monthly Rythm Health membership with full access to at-home blood testing and personalized health insights.
• Generous paid time off policy.
• 401(k).
• The opportunity to help define the future of personalized health.
• High ownership and visibility from day one.
• Small, collaborative, mission-driven team.
• Ability to shape both product and customer experience culture early.