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Scientist/Sr. Scientist - Protein Engineering

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.

Company Overview:

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.

The Biotechnology Discovery Research (BioTDR) division in San Diego is responsible for generating, characterizing, and optimizing biotherapeutics from discovery to candidate selection. We support cross-disciplinary efforts to engineer innovative biotherapeutics that treat metabolic, autoimmune, oncologic, and neurologic diseases. Join our team of scientists working to improve the lives of patients around the world.

This is an opportunity to join the Protein Engineering group at the Lilly Biotechnology Center in San Diego. We are seeking an associate-level scientist with experience in molecular biology, biochemistry, and protein engineering. The successful candidate will engineer, characterize, and optimize antibodies, therapeutic proteins, and alternative scaffolds-with a primary focus on antibody optimization and a supporting role in phage display-based discovery. The ideal candidate is a dedicated teammate with outstanding technical skills who can work collaboratively with the antibody discovery, protein engineering, protein production, protein characterization, and automation groups in San Diego and Indianapolis.

Responsibilities:

  • Engineer, characterize, and optimize antibodies, multispecifics, therapeutic proteins, and alternative scaffolds using rational design and library-based approaches
  • Execute phage display campaigns including library construction, biopanning, clone screening, and hit identification
  • Perform molecular cloning (PCR, Gibson assembly, site-directed mutagenesis, restriction digest/ligation) to support construct generation and library construction
  • Develop, optimize, and execute biochemical and biophysical assays (ELISA, BLI/Octet, SPR, SDS-PAGE) to characterize engineered variants
  • Analyze sequencing data to confirm construct identity and triage candidates for downstream evaluation
  • Contribute to process improvement of molecular biology, display technology, and screening protocols
  • Work collaboratively and communicate with project teams to achieve critical research objectives and timelines
  • Maintain diligent, detailed, and well-organized records including electronic notebooks, laboratory information management systems, presentations, and reports

Basic Requirements:

  • Bachelor's or Master's degree in Biochemistry, Molecular Biology, Protein Engineering, Biotechnology, Cell Biology, or a related field with a minimum of 3+ years of relevant laboratory experience

Additional Skills / Preferences:

  • Demonstrated hands-on experience with molecular biology and cloning techniques (PCR, Gibson assembly, restriction digest/ligation, site-directed mutagenesis, bacterial transformation)
  • Experience with phage display technology; experience with antibody (scFv, Fab) or single-domain antibody libraries is preferred
  • Experience with protein or antibody engineering and optimization approaches
  • Proficient in ELISA and binding assay techniques; experience with BLI (Octet) or SPR (Biacore) is desirable
  • Knowledge of protein structure and structure-activity relationships
  • Knowledge/experience in cell culture and cell-based functional assays
  • Experience working with automation platforms
  • Computational skills such as Python or R for data analysis, scripting, or bioinformatics workflows
  • Familiarity with next-generation sequencing (NGS) data in the context of antibody discovery or directed evolution
  • Effective interpersonal, written, and oral communication skills
  • Excellent analytical and organizational skills with high attention to detail
  • Ability to work independently as well as in cross-functional team settings

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 ([click to reveal website link]) 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
$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.

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Scientist/Sr. Scientist - Protein Engineering

Eli Lilly and Company
San Diego, CA
Full Time
Bachelor's
USD 71,250.00 per year

Published on 05/13/2026

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