Newlimit
Newlimit4d ago
New

Scientist, Drug Product Analytical

South San Franciscomid
OtherScientist
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Quick Summary

Overview

About NewLimit NewLimit is a biotechnology company working to radically extend human healthspan. We’re developing medicines to treat age-related diseases by reprogramming the epigenome,

Technical Tools
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NewLimit is a biotechnology company working to radically extend human healthspan. We’re developing medicines to treat age-related diseases by reprogramming the epigenome, a new therapeutic mechanism to restore regenerative potential in aged and diseased cells. We leverage functional genomics, pooled perturbation screening, and machine learning models to unravel the biology of epigenetic aging and disease using experiments of unprecedented scale.

We are seeking a skilled and motivated Scientist to join our Delivery Sciences team. In this role, you will focus on building the analytical methods to characterize Lipid Nanoparticles (LNPs) to enable our nucleic acid delivery technologies and support the drug product development.

Expertise in developing and implementing analytical methods to characterize RNA drug substances and LNP drug products, with experience managing method qualification, validation, and tech-transfer processes.

Responsibilities

~1 min read

In your role as a Scientist, you will:

  • Design and execute analytical methods to assess the identity, integrity and purity of RNA drug substances and LNP drug products and LNP-conjugates
  • Perform deep-dive analysis into mRNA integrity, identity, lipid content and identity analysis to support drug product stability studies
  • Work closely with the cross-functional teams to support RNA and LNP analysis for drug development from early discovery to GLP/GMP stages. Act as a technical expert for our CRO/CDMO partners on drug substance and drug product analytical method development, validation phases and PK/PD assay developments
  • Interpret data from various analytical assays, reports and prepare data packages
  • Author high-quality technical reports, SOPs, and validation protocols to support regulatory filings

Requirements

~1 min read
  • Ph.D. in Analytical Chemistry, Biochemistry, Pharmaceutical Sciences, or a related field with 1-3 years of industry experience with direct experience working with mRNA-LNP delivery systems
  • IP-RP LC-UV/FLR: Expertise in Ion-Pair Reversed-Phase Chromatography for determining RNA purity, integrity and content
  • LC-CAD: Expertise in method development for lipid purity, content and lipid adducts analysis.
  • Capillary Electrophoresis (CE): Experience developing RNA integrity analysis in both Drug Substance (DS) and LNP Drug Product (DP)
  • DLS/MALS/Cryo-TEM: Expertise in particle size, polydispersity and particle distribution analysis

Nice to Have

~1 min read
  • Understanding of ICH guidelines regarding method qualification and validation ICH Q2 (R1) and Q14
  • Proven success in tech-transferring analytical methods to Contract Development and Manufacturing Organizations.
  • DoE, data visualization and statistical analysis (JMP, Python, R)

What We Offer

~1 min read
Health, dental, and vision insurance
401(k) with company match
Paid parental leave
Industry-leading paid time off (PTO) — 20 days/year for all employees + holidays
Meals and snacks on-site

Location & Eligibility

Where is the job
South San Francisco
On-site at the office
Who can apply
Same as job location

Listing Details

Posted
May 1, 2026
First seen
May 2, 2026
Last seen
May 5, 2026

Posting Health

Days active
3
Repost count
0
Trust Level
60%
Scored at
May 5, 2026

Signal breakdown

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Newlimit
Newlimit
greenhouse
Employees
30
Founded
2022
View company profile
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NewlimitScientist, Drug Product Analytical