---
title: 'Senior Scientist, R&D - Assay Development at Hims & Hers'
canonical: 'https://feeny.ai/job/senior-scientist-r-d-assay-development-hims-hers-south-plainfield-tecjaqpndv9j'
type: 'job'
last_seen: '2026-09-08'
---

# Senior Scientist, R&D - Assay Development at Hims & Hers

- **Company:** [Hims & Hers](https://feeny.ai/companies/hims-hers)
- **Location:** South Plainfield, NJ
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-14
- **Last confirmed live:** 2026-09-08
- **Apply:** https://jobs.ashbyhq.com/hims-and-hers/fa66e1e4-edba-4873-bb24-af6cc5a58ba9

## Job description

Hims & Hers is the leading health and wellness platform, on a mission to help the world feel great through the power of better health. We are redefining healthcare by putting the customer first and delivering access to care that is affordable, accessible, and personal, from diagnosis to treatment to delivery. No two people are the same, so we provide access to personalized care designed for results. By normalizing health & wellness challenges and innovating on their solutions, we’re making better health outcomes easier to achieve.

Hims & Hers is a public company, traded on the NYSE under the ticker symbol “HIMS.” To learn more about the brand and offerings, you can visit hims.com/about http://hims.com/about and hims.com/how-it-works http://hims.com/how-it-works . For information on the company’s outstanding benefits, culture, and its talent-first flexible/remote work approach, see below and visit www.hims.com/careers-professionals http://www.hims.com/careers-professionals.

## ABOUT THE ROLE:

Hims & Hers is seeking a Senior Scientist, R&D to join our growing laboratory organization. This individual contributor will report to the Director of R&D and work closely to develop and validate diagnostic assays supporting both traditional and at-home testing programs, and support assay implementation into clinical operations. The ideal candidate is bench-strong, with hands-on experience across the full assay development lifecycle - from feasibility and optimization through verification and validation; and thrives in a fast-moving, early-stage environment

This is an on-site laboratory role based in Central New Jersey.

## YOU WILL:

Assay Development and Validation

- Design and execute immunoassay development, optimization, and verification studies including ELISA, chemiluminescent, and multiplex formats
- Perform method validation experiments including precision, accuracy, linearity, interference, and stability testing per established protocols
- Apply Design of Experiments (DOE) and statistical methodologies to assay optimization and troubleshooting
- Support LC-MS/MS method development and validation for clinical chemistry and hormone analytes
- Evaluate performance characteristics of capillary versus venous specimens, investigate interference, and develop strategies to extend sample stability
- Develop and revise SOPs to support consistent, reproducible laboratory operations
- Prepare validation summaries, protocols, and technical reports in compliance with quality and regulatory standards

Laboratory Execution

- Perform hands-on laboratory testing using specimens collected via at-home devices such as Tasso and YourBio Health, including whole blood, plasma, serum, and other biological matrices
- Operate LC-MS/MS instrumentation (SCIEX 4500MD or equivalent) including sample preparation, method validation, and data review
- Support testing on automated chemistry and hematology platforms including Roche Cobas Pro and Sysmex systems, including CBC and whole blood analyte workflows
- Support liquid handling automation workflows for sample processing and high-throughput laboratory operations
- Troubleshoot assay performance issues across immunoassay, clinical chemistry, mass spectrometry, and molecular diagnostic platforms

Data Analysis

- Analyze experimental data and perform statistical evaluation of assay performance including precision, bias, and total allowable error modeling
- Prepare figures, tables, and technical summaries for internal review and scientific communication
- Contribute to peer-reviewed publications and scientific conference presentations

Quality and Regulatory Collaboration

- Partner with the Quality team to ensure study designs and documentation meet CAP, CLIA, and applicable regulatory requirements
- Support investigation and resolution of sample rejection issues to improve overall laboratory quality metrics
- Support laboratory inspection readiness and audit preparation activities
- Collaborate with Clinical Laboratory Operations during assay transfer and implementation

## YOU HAVE:

- PhD in Clinical Chemistry, Biochemistry, Analytical Chemistry, Molecular Biology, or related field with 4+ years; OR Master’s degree with 7+ years; OR Bachelor’s degree with 10+ years of relevant bench experience in a diagnostic or clinical laboratory setting
- Demonstrated hands-on experience in immunoassay development including singleplex and multiplex formats
- Experience with LC-MS/MS instrumentation including sample preparation and method validation
- Experience with capillary and venous blood-based specimen types
- Demonstrated experience leading assay validation and verification studies
- Experience applying DOE and statistical methodologies to assay development and optimization
- Proven ability to work independently and drive projects from concept to completion

## Preferred

- Experience in a CAP and/or CLIA regulated laboratory environment
- Experience with at-home or point-of-care diagnostic testing programs
- Experience with dried blood spot (DBS) workflows and stability characterization
- Familiarity with emerging biomarker categories relevant to metabolic health, longevity, and consumer wellness testing
- Experience with NGS-based workflows including library preparation and bioinformatics data review

OUR BENEFITS (THERE ARE MORE BUT HERE ARE SOME HIGHLIGHTS):

- Competitive salary & equity compensation for full-time roles
- Unlimited PTO, company holidays, and quarterly mental health days
- Comprehensive health benefits including medical, dental & vision, and parental leave
- Employee Stock Purchase Program (ESPP)
- 401k benefits with employer matching contribution
- Offsite team retreats

We are committed to building a workforce that reflects diverse perspectives and prioritizes ethics, wellness, and a strong sense of belonging. If you're excited about this role, we encourage you to apply—even if you're not sure if your background or experience is a perfect match.

Hims considers all qualified applicants for employment, including applicants with arrest or conviction records, in accordance with the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance, the California Fair Chance Act, and any similar state or local fair chance laws.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Hims & Hers is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at accommodations@forhims.com and describe the needed accommodation. Your privacy is important to us, and any information you share will only be used for the legitimate purpose of considering your request for accommodation. Hims & Hers gives consideration to all qualified applicants without regard to any protected status, including disability. Please do not send resumes to this email address.

To learn more about how we collect, use, retain, and disclose Personal Information, please visit our Global Candidate Privacy Statement https://www.hims.com/global-candidate-privacy-statement.

## About Hims & Hers

## Company Overview
- **One-liner**: Hims & Hers is a leading digital health platform that connects people to licensed healthcare providers for personalized treatment plans across sexual health, hair care, weight loss, mental health, and more.
- **Entity Type**: Public (NYSE: HIMS)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2017
- **Founders**: Andrew Dudum, Jack Abraham, Hilary Coles

## Core Business
- Primary industry: Telehealth / Digital Health / Consumer Wellness
- Target customers: B2C – individual consumers seeking convenient, stigma-free access to healthcare for common conditions (men’s and women’s health)
- Mission: “To make the world feel great through the power of better health.”

## Products & Services
- **Hims (Men’s Health)**: Access to care for erectile dysfunction, hair loss, anxiety, low testosterone, and more. Prescriptions are shipped discreetly.
- **Hers (Women’s Health)**: Services for birth control, hair regrowth, skincare, mental health, menopause, and weight loss.
- **MedMatch**: Proprietary AI/ML tool that analyzes millions of de-identified data points to help providers identify optimal treatments for individual patients.
- **Mental Health**: Access to therapy and psychiatry via asynchronous messaging or live visits.
- **Weight Loss**: Personalized treatment plans including GLP-1 medications and lifestyle coaching.
- **At-home lab testing**: Available through strategic acquisitions (e.g., Honest Health in the U.K.).
- **Retail presence**: Products available at select retailers like Target.

## Market Standing
- **Valuation/Market Cap**: Publicly traded on NYSE: HIMS – market cap fluctuates; as of mid-2025, approximately $8–10B (check recent trading). *Not explicitly stated in provided sources.*
- **Key Metric**: Over 2.4 million subscribers as of June 30, 2025 (source: [hims.com](https://www.hims.com/about/the-company))
- **Notable Investors/Partners**: Backed by venture firms (Atomic Labs, Cherubic Ventures); went public via SPAC in 2021; partnership with Ochsner Health.
- **Growth Signals**: Expanded into new conditions (menopause, sleep, preventive health); launched Super Bowl ad in 2025; acquired Apostrophe (skincare) and Honest Health (U.K.); opened Ohio-affiliated pharmacy; retail expansion at Target; international expansion in the U.K.

## Competitive Advantages
- **Asynchronous care model**: Patients communicate with providers on their own time via secure messaging, removing barriers like commute and wait times.
- **Proprietary MedMatch AI**: Provides data-driven treatment recommendations to providers, improving personalization at scale.
- **Strong brand & stigma reduction**: Normalizes conversations around sensitive health issues (ED, hair loss, mental health).
- **Integrated pharmacy & fulfillment**: Partner pharmacies enable discreet home delivery and ongoing support.
- **Large subscriber base & data moat**: 2.4M+ subscribers generate millions of de-identified interactions to train MedMatch.

## Strategic Focus
- Scaling access to personalized care through data, lab testing, and AI.
- Expanding into new conditions (low testosterone, menopause, sleep, preventive health).
- Leveraging MedMatch and AI-supported coaching for smarter care delivery.
- Taking the model global (U.K. presence with Honest Health).
- Building long-term customer relationships through ongoing clinical support and educational resources.

## Why Work Here
- **Remote-first culture**: “Work from anywhere you like in the U.S.” (source: [hims.com/careers-professionals](https://www.hims.com/careers-professionals))
- **Flexibility & autonomy**: Emphasis on giving team members freedom to do their best work.
- **Benefits**: Competitive salary bands, stock options, 401(k) with matching, high-coverage medical/dental/vision, generous PTO and parental leave, $75/month utility stipend, employee product discount.
- **Culture**: Described as fun, dynamic, compassionate; monthly all-hands, executive fireside chats, dedicated Slack channels for interests.
- **Interview process**: Typically involves recruiter call, hiring manager, cross-functional panels, and possibly a take-home assessment; virtual via Zoom/Google Meet; accommodations available.
- **Team size**: 1,100+ team members across 40 states (source: [hims.com/careers-professionals](https://www.hims.com/careers-professionals))

## Sources
1. [hims.com – About the Company](https://www.hims.com/about/the-company)
2. [hims.com – Careers Professionals](https://www.hims.com/careers-professionals)
3. [builtin.com – What's It Like to Work at Hims & Hers](https://builtin.com/company/hims-hers/faq/workplace-perception)

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