---
title: '(StealthCo) Scientist: Biology and Cell Pharmacology at Foresite Labs'
canonical: 'https://feeny.ai/job/stealthco-scientist-biology-and-cell-pharmacology-foresite-labs-boston-vmgm4eyp0rp6'
type: 'job'
last_seen: '2026-09-11'
---

# (StealthCo) Scientist: Biology and Cell Pharmacology at Foresite Labs

- **Company:** Foresite Labs
- **Location:** Boston, MA
- **Posted:** 2026-07-14
- **Last confirmed live:** 2026-09-11
- **Apply:** https://job-boards.greenhouse.io/foresitelabs/jobs/8633221002

## Job description

About the role:

We are seeking a highly motivated and intellectually agile Scientist to join our stealth-mode biotech company and contribute to programs focused on hematopoietic cell biology. This laboratory-based role will be responsible for designing, executing, and interpreting in vitro experiments that generate actionable insights and support scientific decision-making.

The successful candidate will be mechanistically minded, able to connect experimental observations to underlying biology, build novel reproducible assays, and deliver results in a fast-paced environment.

The position is a rare opportunity to play a pivotal role in the successful development of new drugs for patients within an early-stage therapeutics company backed by highly regarded investors.

Key Responsibilities:

- Lead efforts to develop a novel therapeutic for the treatment of a hematologic disease with unmet medical need
- Develop, optimize, and perform cell-based assays to evaluate the impact of compounds on:
- Erythroid differentiation (e.g., flow cytometry markers,morphology)
- Cell health (e.g., viability)
- Protein-level readouts (e.g., flow cytometry, ELISA, high content imaging, Western blot)
- RNA-level outcomes (e.g., qPCR)
- Culture and differentiate multiple cell lines using established and custom protocols.
- Collaborate with scientists, mentor and train associates in a small biotech startup environment.
- Translate and develop selected assays to support in vivo pharmacology studies.
- Maintain detailed laboratory records, perform data analysis, and present findings in team meetings.
- Ensure compliance with all lab safety, quality, and recordkeeping standards.
- Oversee research activities with external research organizations (CROs) as needed

Qualifications:

- PhD in Cell Biology, Molecular Biology, or a related field with 0-2 years of industry experience preferred
- BS or MS in Cell Biology, Molecular Biology, or a related field with 5+ years of relevant industry research experience will be considered
- Proven tissue culture experience with human cell lines and primary human cell culture—ideally CD34+ hematopoietic or other stem/progenitor cells. Familiarity with erythroid differentiation assays and hematopoietic biology is a plus.
- Molecular biology expertise including DNA and RNA purification and practical expertise with downstream nucleic acid-based (e.g., qPCR, and RNA-seq) and protein-based assays (e.g. flow cytometry, ELISA, and Western blotting)
- Demonstrated experience in building novel cell-based assays is a strong plus.
- Excellent attention to detail, organizational skills, and ability to work both independently and collaboratively.
- Excellent problem-solving skills and a track record of learning new techniques and scientific concepts quickly.
- Strong communication skills for cross-functional teamwork and clear documentation.

What we offer:

- Competitive compensation and benefits
- A collaborative, small-team environment with growth opportunities
- The opportunity to contribute to innovative drug discovery efforts and join an early-stage biotechnology company backed by highly regarded investors

Location: Cambridge, MA

## About Foresite Labs

## Company Overview
- **One-liner**: Foresite Labs is an incubation platform that builds and launches transformational companies at the intersection of artificial intelligence, data science, and the life sciences.
- **Entity Type**: Private (incubation platform funded by Foresite Capital; latest fund $900M raised in 2024)
- **Headquarters**: San Francisco, California, USA (with a second office in Cambridge, Massachusetts, USA)
- **Founded**: 2019
- **Founders**: Vik Bajaj (CEO) is the founding CEO; the company was established by Foresite Capital

## Core Business
- **Primary industry/industries**: Biotechnology, Artificial Intelligence, Drug Discovery, Healthcare Technology
- **Target customers**: Entrepreneurs and scientists building AI-driven life science companies; portfolio companies span B2B (drug development platforms, data analytics) and B2C (therapeutics)
- **Mission or purpose statement**: “Delivering on the promise of artificial intelligence in science and engineering” – accelerating scientific discovery by integrating AI, data science, and advanced analytics.

## Products & Services
Foresite Labs does not sell a single product; it operates as an incubation and company-building platform. Its core offerings include:

- **Incubation Platform**: Provides infrastructure, capital, scientific expertise, and operational support to spin out new companies. Portfolio includes Xaira Therapeutics, Prometheus, Alumis, Candid Therapeutics, and others.
- **Data Ecosystem**: Standardizes and harmonizes data generation and analysis across the portfolio to fuel AI breakthroughs.
- **Capabilities**: AI/ML model development, data science, advanced analytics, clinical development, and company formation.

## Market Standing
- **Valuation/Market Cap**: Not disclosed for Foresite Labs itself. Its portfolio company Prometheus was valued at $41B (2026).
- **Key Metric**: Total funding raised by Foresite Capital (the affiliated investment firm) – $900M sixth fund (2024) and $173M dedicated to Foresite Labs incubated companies (2022).
- **Notable Investors/Partners**: Foresite Capital (lead investor); portfolio includes collaborations with UCB (acquisition of Candid Therapeutics), Jeff Bezos (Prometheus), and others.
- **Growth Signals**: 15 active job postings (up 650% year-over-year); portfolio company Alumis hit positive psoriasis trial results; Xaira Therapeutics released largest Perturb-Seq dataset; headcount of 31 employees with recent hiring surge.

## Competitive Advantages
- **Scientific rigor meets AI**: Combines deep life science expertise (scientists, clinicians) with cutting-edge AI/ML capabilities.
- **Captive capital and ecosystem**: Backed by Foresite Capital’s large funds, providing patient capital and a network of portfolio companies that share data and tools.
- **Data moat**: Proprietary data ecosystem that standardizes and harmonizes multi-omics and clinical data, creating a unique training ground for AI models.
- **Track record**: Successful exits (Candid Therapeutics acquired by UCB) and high-value spinouts (Prometheus at $41B).

## Strategic Focus
- **Current priorities**: Scaling the incubation pipeline, expanding into new therapeutic areas (autoimmune diseases, oncology), and deepening AI capabilities (e.g., virtual cell models).
- **Direction for growth**: Building a self-reinforcing loop where portfolio companies generate data that feeds back into the platform, accelerating future discoveries.

## Why Work Here
- **Culture highlights**: Values include “Truth over progression” (data-driven decisions), “Take good risks” (celebrate informed risk-taking), and “Single accountable person” (clear ownership). Emphasis on collaboration and respect.
- **Remote/hybrid/office policy**: Flexible work environment; headquarters in San Francisco and Boston.
- **Notable perks**: Competitive salaries, excellent benefits, opportunity to learn from top thinkers across multiple disciplines (scientists, engineers, operators). Employees are encouraged to grow even if they eventually move to a portfolio company.
- **Engineering culture**: Hands-on work building AI platforms for drug discovery; roles span bioinformatics, data engineering, machine learning, and automation.
- **Reviews**: 4.2/5 on LinkedIn (8 reviews); compensation rated 4.3, culture 3.8, career 4.1.

## Sources
1. [foresitelabs.com](https://foresitelabs.com/) – Homepage, company description, portfolio
2. [foresitelabs.com/about](https://foresitelabs.com/about/) – Mission, team, founding story
3. [foresitelabs.com/careers](https://foresitelabs.com/careers/) – Careers page, values, benefits
4. [job-boards.greenhouse.io/foresitelabs](http://job-boards.greenhouse.io/foresitelabs) – Current job openings
5. [linkedin.com/company/foresitelabs](https://www.linkedin.com/company/foresitelabs) – LinkedIn profile, employee count, growth, reviews, recent departures
6. [BioSpace](https://www.biospace.com/) – News on Foresite Capital’s $900M fund and $173M fund for incubated companies (referenced in LinkedIn feed)
7. [MobiHealthNews](https://www.mobihealthnews.com/) – Q&A on Project Stargate and AI cancer vaccines (referenced in LinkedIn feed)

## Other roles at Foresite Labs

- [Senior Data Engineer (5+ years)](https://feeny.ai/job/senior-data-engineer-5-years-foresite-labs-san-francisco-73hkbgkj8gd6) — San Francisco, CA
- [Software Engineer, AI Agents](https://feeny.ai/job/software-engineer-ai-agents-foresite-labs-san-francisco-fa106kh70933) — San Francisco, CA