Lilly Posted July 27, 2026

Senior Principal Scientist, Analytical Sciences

Watertown, Massachusetts, United States of America FULL_TIME
Manufacturing & CMC Principal

Lilly is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

At Lilly, the work is demanding because patients are waiting. We unite caring with discovery to help make life better for people around the world, knowing that every decision, every detail, and every day matters. Headquartered in Indianapolis, Indiana, our over 50,000 employees around the globe take on complex challenges to discover and deliver life-changing medicines, strengthen how health is understood and managed, and support the communities we serve. This is hard, urgent, selfless work, but it’s work worth doing. If you’re driven by purpose and ready to bring your best to work that truly matters for patients, we invite you to join us.

Overview

At Lilly, we serve an extraordinary purpose. We make a difference for people around the globe by discovering, developing and delivering medicines that help them live longer, healthier, more active lives. Not only do we deliver breakthrough medications, but you also can count on us to develop creative solutions to support communities through philanthropy and volunteerism.

Orna Therapeutics, Inc., a wholly owned subsidiary of Eli Lilly and Company, is an innovative biotechnology startup based in Watertown, MA, committed to developing groundbreaking therapies for diseases that current approaches cannot address. With our pioneering circular RNA technology, developed at MIT, we are at the forefront of advancing the next generation of RNA therapeutics. Our state-of-the-art expression and delivery platform positions us to tackle complex diseases, including B cell-driven autoimmune disorders, B cell malignancies, sickle cell disease, and beyond.

Position Summary

We are seeking an exceptional Senior Principal Scientist to join our growing team. In this role, you will partner closely with Platform Science, Discovery, and CMC groups to drive analytical characterization of circular RNA and lipid nanoparticle-based therapeutics with a focus on mass spectrometry. The ideal candidate is a highly motivated scientist who is creative, hardworking, results focused, driven and has extensive prior experience in LC-MS/MS analysis of biologics, RNA, and Lipids. The ideal candidate will contribute to method development, method qualification, and product characterization while operating in a fast ‑ paced, collaborative environment.

Responsibilities

Implement and refine analytical testing strategies for circular RNA and lipid nanoparticle (LNP) formulations.

Develop and optimize drug substance and drug product LC-MS/MS assays for quantification, characterization; perform in-depth characterization studies for lead candidates and pipeline programs.

Troubleshoot complex hardware and software issues on high-resolution MS platforms.

Lead method transfer activities to external partners, providing technical oversight, troubleshooting, and ensuring assay robustness and compliance.

Author and review methods, reports, and SOPs to ensure alignment with regulatory expectations.

Generate high-quality data packages; analyze, interpret, and present findings to cross functional R&D teams.

Foster a positive, innovative, and entrepreneurial team culture; contribute to scientific strategy and continuous improvement initiatives.

Basic Requirements

M.S. or B.S. degree in molecular biology, cell biology, biochemistry, or chemistry plus assay development experience and the following: 7+ years’ LC-MS and relevant industry experience (M.S.), or 10+ years’ LC-MS and relevant industry experience (B.S.)

PhD will not be considered at this job level.

Full competency in all aspects of bioanalysis by LC-MS/MS including method development, execution of quantitative assays, critical review of data, and communication of scientific results.

Hands-on expertise with complex LC-MS operations, method development, troubleshooting, and maintenance of advanced platforms including QTOF, Orbitrap or triple quadrupole mass spectrometers.

Experience with various techniques such as IP-RP, AEX, SEC-MALS, and LC-CAD for characterization and release testing for quantifying RNA, Lipids and proteins in complex biological matrices.

Qualified applicants must be authorized to work in the United States on a full-time basis. Lilly will not provide support for or sponsor work authorization or visas for this role, including but not limited to F-1 CPT, F-1 OPT, F-1 STEM OPT, J-1, H-1B, TN, O-1, E-3, H-1B1, or L-1.

Additional Preferences

Experience in RNA biology or RNA therapeutics is preferred but not required.

Excellent oral and written communication skills, with the ability to clearly present complex data.

Knowledge of CMC and regulatory requirements for biologics, including ICH Quality Guidelines and appropriate cGMP authority guidelines and regulations.

Demonstrated ability to thrive in a dynamic, fast-moving research environment with strong problem‑solving and interpersonal skills.

Additional Information:

Physical Demands/Travel:

The physical demands of this job are consistent with lab environment .  

The physical demands here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

Work Environment:

This position’s work environment is in a laboratory environment.

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.

*To perform this job successfully, an individual must be able to perform the role and responsibilities satisfactorily. The requirements listed above are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Lilly is dedicated to helping individuals with disabilities to actively engage in the workforce, ensuring equal opportunities when vying for positions. If you require accommodation to submit a resume for a position at Lilly, please complete the accommodation request form ( https://careers.lilly.com/us/en/workplace-accommodation ) for further assistance. Please note this is for individuals to request an accommodation as part of the application process and any other correspondence will not receive a response.

Lilly is proud to be an EEO Employer and does not discriminate on the basis of age, race, color, religion, gender identity, sex, gender expression, sexual orientation, genetic information, ancestry, national origin, protected veteran status, disability, or any other legally protected status.

Our employee resource groups (ERGs) offer strong support networks for their members and are open to all employees. Our current groups include: Africa, Middle East, Central Asia (AMECA), Black Employees at Lilly (BE@Lilly), Chinese Culture Network (CCN), EnAble, Evolve, Lilly Indian Network (LIN), Organization of Latinx at Lilly (OLA), Pride (LGBTQ+ Allies), Veterans Leadership Network (VLN) and Women’s Initiative for Leading at Lilly (WILL).

Actual compensation will depend on a candidate’s education, experience, skills, and geographic location.  The anticipated wage for this position is

$71,250 - $187,000

Full-time equivalent employees also will be eligible for a company bonus (depending, in part, on company and individual performance). In addition, Lilly offers a comprehensive benefit program to eligible employees, including eligibility to participate in a company-sponsored 401(k); pension; vacation benefits; eligibility for medical, dental, vision and prescription drug benefits; flexible benefits (e.g., healthcare and/or dependent day care flexible spending accounts); life insurance and death benefits; certain time off and leave of absence benefits; and well-being benefits (e.g., employee assistance program, fitness benefits, and employee clubs and activities).Lilly reserves the right to amend, modify, or terminate its compensation and benefit programs in its sole discretion and Lilly’s compensation practices and guidelines will apply regarding the details of any promotion or transfer of Lilly employees.

#WeAreLilly

Job details

Seniority
Principal
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Watertown, Massachusetts, United States of America
Employment type
FULL_TIME

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 393 comparable Principal Manufacturing & CMC roles across 56 biopharma companies.

393Comparable roles tracked
368Currently active
56Companies hiring similar roles
19Countries represented

Salary context

188 of 393 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject $71,250/yr – $187,000/yr
Lowest disclosed · Senior Scientist II – CMC Developmental Sciences · AbbVie $0/hr – $0/hr (≈ $0–$0/yr)
Highest disclosed · Director, Global Automation Engineering · AbbVie $182,000/yr – $346,000/yr
Peer group range $0 – $264,000 (median $150,600)

Where these roles are based

Top locations among the 393 comparable roles

United States282
India42
Singapore10
Ireland9
Netherlands7
Switzerland6

+ 13 more countries

Seniority mix

393 of 393 peers have a known seniority level

Senior251
Principal78
Director64

Therapeutic area mix

2 of 393 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology1
Vaccines & Infectious Disease1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

60%similar
Lilly Indianapolis, Indiana, United States of America Principal
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60%similar
Lilly Indianapolis, Indiana, United States of America Principal
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How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

60%
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Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.