Senior Scientist, Diagnostics & Immunoassays

Hims; SOUTH PLAINFIELD (NJ); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive salary & equity

Unlimited PTO

Comprehensive health benefits

ESPP

401k employer matching

Offsite team retreats

Job summary

Hims & Hers, a leading health and wellness platform, is seeking a Senior Scientist, R&D to join its Central New Jersey laboratory. This role focuses on developing and validating diagnostic assays for both traditional and at-home testing programs, guiding assay implementation into clinical operations.

The ideal candidate is bench-strong, with hands-on experience across the full assay lifecycle in a fast-paced, early-stage environment, and will report to the Director of R&D.

Qualifications

• PhD in Clinical Chemistry, Biochemistry, Analytical Chemistry, Molecular Biology, or related field.
• 4+ years bench experience in a diagnostic or clinical laboratory setting.
• Hands-on immunoassay development including singleplex and multiplex formats.
• Experience with LC-MS/MS instrument development and validation.

Responsibilities

• Design and execute immunoassay development, optimization, and verification studies across formats (ELISA, chemiluminescent, multiplex).
• Perform method validation: precision, accuracy, linearity, interference, stability per protocols.
• Apply DOE and statistics to optimization and troubleshooting.
• Support LC-MS/MS method development and validation for clinical analytes.
• Develop SOPs and maintain compliant documentation.

Skills

Immunoassay dev

DOE statistics

Method validation

Data analysis

Independent work

Education

PhD in a related field

Masters 7+ years bench exp

Bachelor 10+ years bench exp

Tools

LC-MS/MS

SCIEX 4500MD

Roche Cobas Pro

Sysmex instruments

Tasso/YB Home sampling

Job description

Hims & Hers, a leading health and wellness platform, is seeking a Senior Scientist, R&D to join its Central New Jersey laboratory. This role focuses on developing and validating diagnostic assays for both traditional and at-home testing programs, guiding assay implementation into clinical operations.

The ideal candidate is bench-strong, with hands-on experience across the full assay lifecycle in a fast-paced, early-stage environment, and will report to the Director of R&D.