Lilly Posted October 25, 2026

Scientist, Discovery Oncology (in vivo Biology)

South San Francisco, California, United States of America FULL_TIME
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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, and 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. 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.

Position Summary:

We are seeking a highly motivated, hands-on scientist to join our in vivo team within Discovery Oncology. Working under the direct technical guidance of a senior scientific lead, the successful candidate will execute in vivo mouse studies according to established study designs and written protocols to support target identification and validation, efficacy assessment, and de-risking of on-target toxicity liabilities across the Discovery Oncology portfolio. The majority of the work is in vivo study execution, complemented by basic cell culture in support of those studies.

The ideal candidate has strong animal handling, dosing, and necropsy technique; documents work meticulously; and communicates clearly with study leads and cross-functional partners. Occasional weekend and holiday coverage may be needed to support dosing and study time points.

Responsibilities:

Execute mouse studies, including tumor cell implantation, dosing by standard routes (e.g., PO, IP, SQ), and basic necropsy technique; build proficiency in additional techniques (e.g., IV dosing, survival surgery) with training.

Measure and record tumor volumes, body weights, and clinical observations; monitor animal health and escalate findings promptly to the study lead and veterinary staff.

Support dosing, formulation, and necropsy for studies run by other team members, including occasional weekend or holiday coverage as needed.

Harvest and process tumor and tissue samples at study endpoints, including sample banking for downstream analysis.

Perform basic in vitro cell culture (maintenance, expansion, quality checks of cancer cell lines) to prepare cells and reagents for implantation studies.

Order and track lab and office supply inventory for in vivo studies.

Maintain compliance with IACUC-approved animal care and use protocols and all laboratory research and animal handling procedures.

Follow good research practices, SOPs, and notebook documentation standards.

Enter, tabulate, and summarize study data (tumor growth curves, body weight change) using established templates; present results at project team meetings.

Contribute to a safe, efficient, compliant vivarium and lab environment.

Basic Qualifications

Associate degree in animal science, biology, or related field with 5+ years of in vivo research/animal experience; or BS in animal science, biology, cancer biology, or related field with 2+ years of in vivo research/animal experience.

Qualified applicants must be authorized to work in the United States on a full-time basis. Vaccine Company 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.

Preferred Qualifications

Hands-on experience with in vivo mouse work, including animal handling, dosing, and necropsy.

Demonstrated ability to follow established study designs, protocols, and SOPs with high accuracy.

Working knowledge of basic mammalian cell culture and aseptic technique.

Experience working under IACUC-approved protocols.

Strong organizational, documentation, and communication skills; collaborative mindset.

Flexibility to provide occasional weekend or holiday coverage for dosing and study time points.

Familiarity with in vivo imaging (e.g., bioluminescence, LI-COR Pearl imager).

Experience with histology, IHC, and basic pathology interpretation.

Familiarity with oncology tumor models (cell line xenograft, syngeneic, and/or PDX), including tumor cell implantation.

Experience with IV (tail-vein) dosing, retro-orbital technique, survival surgery, and/or orthotopic implantation.

Experience with basic flow cytometry (tissue dissociation, antibody staining, sample acquisition) and data analysis in FlowJo.

Work Environment & Physical Demands

This role is based on-site in a vivarium and laboratory/bench setting and involves standing, light lifting, and animal handling for extended periods.

Reasonable accommodations are available for individuals with disabilities to perform the essential functions of the role.

Additional Information:

The appointed candidate will work on site, full-time, in South San Francisco, California.

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

$66,000 - $171,600

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
Not listed
Function
Drug Discovery & Preclinical Research
Therapeutic area
Oncology
Location
South San Francisco, California, United States of America
Employment type
FULL_TIME

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 913 comparable Drug Discovery & Preclinical Research roles across 88 biopharma companies.

913Comparable roles tracked
851Currently active
88Companies hiring similar roles
32Countries represented

Salary context

354 of 913 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

This roleSubject $66,000/yr – $171,600/yr
Highest disclosed · Vice President, Therapeutics Immunology · ModernaTX, Inc. $272,200/yr – $490,100/yr
Peer group range $0 – $381,150 (median $155,000)

Where these roles are based

Top locations among the 913 comparable roles

United States626
China46
Germany37
Switzerland30
United Kingdom28
France27

+ 26 more countries

Seniority mix

655 of 913 peers have a known seniority level

Senior216
Principal149
Intern/Fellow/Postdoc70
Associate61
Director61
Associate Director32
Manager27
Senior Director24
Executive/VP15

Therapeutic area mix

123 of 913 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology50
Oncology42
Neuroscience15
Cardiovascular / CVRM9
Respiratory3
Vaccines & Infectious Disease2
Rare Disease2

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.

80%similar
Novartis Cambridge (USA), United States Associate Director
Same function Same therapeutic area Same country
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80%similar
GlaxoSmithKline LLC Waltham, United States Director
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80%similar
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80%similar
Merck South San Francisco, California, United States of America Intern/Fellow/Postdoc
Same function Same therapeutic area Same country

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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.

80%
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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.