Principal Scientist (Associate Director), Reagent Product Development
Quantumsi25 · San Diego, CA
Posted 19 days ago · $175,000- $200,000
or apply directly on Quantumsi25's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 19 days Quantumsi25's roles stay open a median of 26 days
- Reposted
- No
- Salary listed
- Yes 100% of Quantumsi25's roles list one
- Ghost-job risk at Quantumsi25
- low 0 stale, 0 reposted of 8 open
- Hiring momentum
- 8 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Quantumsi25's own greenhouse board since 2026-08-03. Full hiring picture for Quantumsi25.
About this role
The Principal Scientist will lead the development of reagents and workflows for a Quantum-Si protein sequencing platform, overseeing the technical strategy and team execution. Responsibilities include managing a team to create an integrated reagent system, guiding the product development process, and collaborating with cross-functional teams to align reagent design with platform requirements. This role emphasizes scientific leadership, team management, and cross-functional collaboration to ensure successful product launches.
- benefits
- 4/5
- freshness
- 4/5
- career value
- 5/5
- role clarity
- 5/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Quantumsi25 as an employer.
What you need
- PhD in Chemistry, Biochemistry, Molecular Biology, Bioengineering, or related field
- 12+ years of relevant industry experience
- 8+ years in product development with leadership in reagent or assay development
- Proven track record of launching commercial products through a formal product development process
- Direct experience in developing protein-based reagents and/or sequencing chemistry
- Experience leading other leaders
Nice to have
- Expertise in enzymatic kinetics and developing kinetic assays
- Experience in a regulated environment (ISO 13485, FDA QSR)
- Multi-site team leadership experience
What you get
- Comprehensive medical, dental, and vision insurance coverage
- Health Savings Account (HSA) and Flexible Spending Account (FSA) options
- Company-paid life and accidental death & dismemberment (AD&D) insurance
- Short-term and long-term disability coverage
- Employee Assistance Program (EAP) resources
- Discretionary paid time off and company-paid holidays
Worth weighing
- No salary listed in the posting, but a range is provided
- Role involves significant leadership and cross-functional collaboration
- Requires managing a team and driving complex product development processes
Summarised from Quantumsi25's posting. Read the full original.
Listed by Quantumsi25 on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
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