Lilly Posted July 22, 2026

Principal Scientist - Molecular Biology, Cell Culture Upstream Process Development

Indianapolis, Indiana, 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, we unite caring with discovery to make life better for people around the world. We are a global healthcare leader headquartered in Indianapolis, Indiana. Our employees around the world work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to our communities through philanthropy and volunteerism. We give our best effort to our work, and we put people first. We’re looking for people who are determined to make life better for people around the world.

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.

Position Summary

The Bioproduct Research and Development (BR&D) organization strives to deliver innovative medicines to patients through the development and commercialization of monoclonal antibodies, novel therapeutic proteins, peptides, bioconjugates, cell therapies, gene therapies, and other genetic medicines etc. This organization is a multidisciplinary group that works collaboratively with our discovery, manufacturing and quality, business units.

The Principal Scientist/Sr. Principal Scientist is responsible for upstream process development activities related to the production of bioproduct active pharmaceutical ingredients including cell line development, cell culture process definition and optimization, process robustness studies, process transfers to pilot plant and manufacturing sites and authorship of upstream process development sections of Regulatory submissions.  The position will interact closely with other scientists in BR&D as well as Discovery, Technical services for Manufacturing, and Manufacturing scientists. They are expected to be an integral participant on multidisciplinary CMC project teams that support bioproduct process and product development activities.

Responsibilities

Design and execute appropriate upstream development experiments for generation of bioproduct active pharmaceutical ingredient including protein intermediates for bioconjugation.

Provide hands-on support for troubleshooting technical issues and driving innovation projects with novel ideas and technologies.

Participate in cross-functional process development teams and effectively collaborate with other groups in BR&D, Discovery, Technical services for Manufacturing and Manufacturing.

Support transfer of upstream processes to pilot plant and manufacturing sites.

Author technical reports and regulatory documents.

Work effectively with external parties on development projects, research collaborations and outsourcing efforts.

Support organizational initiatives as needed to achieve short-term and long-term departmental goals.

Keep current of relevant scientific literature, new technologies/capabilities and regulatory initiatives/requirements and support their implementation, as appropriate.

Ensure work is aligned with all relevant Development Quality, Regulatory, HSE, GLP and GMP requirements.

Basic Requirements

BS/MS in Microbiology, Cell Biology, Molecular Biology, Biology, Chemical Engineer, or related field

BS with 6+ or MS with 3+ years of relevant industrial experience

PhD will not be considered at this job level

Ability to work well in a team environment incorporating a variety of functional relationships and desire to be a point of accountability.

Effective oral and written communication skills, self-management, task planning and organization.

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 Skills and Preferences

Experience with designing experiments, generating data, interpreting results, and documenting the work, independently.

Data science and/or AI/ML experience

Knowledge of cell biology, cell culture, molecular biology with an emphasis on recombinant protein expression

Hands-on experience with cell line generation, cell culture bioreactor operation skills

General knowledge and understanding of issues associated with scaling of upstream processes, and use of statistics for data analysis

Capable of solving problems with minimal supervision

Work productively in an interdisciplinary team environment.

Additional Information:

Physical Demands/Travel:

The physical demands of this job are consistent with a 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 Network, Black Employees at Lilly, Chinese Culture Network, Japanese International Leadership Network (JILN), Lilly India Network, Organization of Latinx at Lilly (OLA), PRIDE (LGBTQ+ Allies), Veterans Leadership Network (VLN), Women’s Initiative for Leading at Lilly (WILL), enAble (for people with disabilities). Learn more about all of our groups.

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

$65,250 - $169,400

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
Indianapolis, Indiana, 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 $65,250/yr – $169,400/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
Same function Same seniority Same country
60%similar
Lilly Louisville, Colorado, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Watertown, Massachusetts, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country
60%similar
Lilly Indianapolis, Indiana, United States of America Principal
Same function Same seniority Same country

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%
Senior/Principal Scientist, Bioprocess Purification Development
Lilly · Indianapolis, Indiana, United States of America · Principal
Function Therapeutic area Seniority Country
60%
Senior Principal Scientist, Analytical Sciences
Lilly · Watertown, Massachusetts, United States of America · Principal
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60%
Principal Scientist, DSCS Digital Technologies–Laboratory Automation, Time Series Data Strategy (Hybrid)
Merck · Rahway, New Jersey, United States of America · Principal
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Associate Principal Scientist/Engineer, Medical Device and Combination Products, Analytical
Merck · West Point, Pennsylvania, United States of America · Principal
Function Therapeutic area Seniority Country
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.