Eli Lilly

Principal Engineer

Eli Lilly$102K — $171K *
Pharmaceuticals & Biotech
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • B.S. degree with 6-9 years or M.S. degree with 3-6 years of relevant industry experience in chemical or biological engineering.
  • Experience with operating cell cultures in shake flasks and small-scale bioreactors.
  • Authorization to work in the U.S. on a full-time basis without support for work visas.
  • Strong written and verbal communication skills for effective cross-functional interaction.
  • Exceptional problem-solving abilities and high learning agility.

Responsibilities

  • Design and execute experiments to optimize and troubleshoot bioprocesses with minimal oversight.
  • Operate suspension cell culture systems and small bioreactors effectively.
  • Analyze and interpret experimental data independently.
  • Prepare technical documents and regulatory support materials.
  • Deliver clear scientific insights to project teams and management.
  • Facilitate technology transfer of bioprocesses to manufacturing stages.
  • Evaluate and integrate new technologies to enhance existing platforms.

Benefits

  • Access to a comprehensive benefits program including medical, dental, and vision insurance.
  • Participation in a company-sponsored 401(k) and pension plan.
  • Vacation and leave of absence benefits.
  • Well-being programs including fitness benefits and employee assistance programs.
  • Opportunities for internal networking and collaboration with external partners.
Full Job Description

Position Summary:

This role is within Bioproduct Research and Development (BR&D), a multidisciplinary organization that develops and optimizes biologically derived products. Upstream Process Development engineers develop and optimize processes for recombinant therapeutic proteins and genetic medicines, including control strategy, characterization, qualification, scale-up, and technology transfer.

This is a hands-on, lab-based role supporting program progression from Research to Manufacturing. The successful candidate is self-motivated, analytical, and an effective communicator who works well across functions and with external partners (vendors/academia) to evaluate new technologies and benchmark best practices.

Key Responsibilities:

  • Design and execute experiments to evaluate, optimize, characterize, and troubleshoot processes and equipment with minimal guidance.

  • Operate suspension cell culture in shake flasks and small-scale bioreactors (e.g., Ambr250, 5 L benchtop bioreactor).

  • Analyze and interpret data independently.

  • Author technical reports, protocols, and regulatory-supporting documentation.

  • Present clear, actionable, scientific insights to project teams and leadership.

  • Support equipment qualification, scale-up/scale-down, and technology transfer of mammalian-based bioprocesses to clinical and commercial manufacturing.

  • Evaluate emerging technologies and equipment to advance platform capabilities.

  • Develop novel hypotheses, connect insights across fields, and propose experiments beyond the project plan.

  • Build internal and external networks to leverage capabilities and accelerate progress.

  • Implement automation to streamline analysis, improve visualization, and maintain data integrity.

  • Occasional weekend work may be required for sampling or equipment preparation.

Basic Requirements:

  • B.S. degree with 6-9 years, or M.S. degree with 3-6 years, of relevant industry experience; degree in chemical engineering, biological engineering, or related discipline.

  • Experience in operating cell culture in shake flasks and small-scale bioreactors.

  • 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.

  • Strong written and verbal communication skills; able to communicate with operations staff and management.

  • Strong problem-solving skills

  • High learning agility

Additional Skills/Preferences:

  • Ability to work independently and mentor junior scientists in a collaborative, cross-functional environment.

  • Comfort using AI tools (e.g., Claude, Copilot) for analysis and design.

  • Working knowledge of molecular biology, omics, metabolic flux analysis, and PAT.

  • Creativity to identify improvement opportunities and the initiative to implement them.

  • Proven ability to manage multiple priorities and deliver results in a fast-paced, evolving environment.

  • Experience managing external collaborations with CDMOs.

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.

  • Position located in Indianapolis, IN (Lilly Technology Center North).

  • 8-hour days with flexibility to support activities (Position requires on-site presence, five days per week).

  • 0-10% travel

Work Environment:

This position’s work environment is in alaboratory environment.  

Thework 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.

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

$102,000 - $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.

About Eli Lilly

ICOS Corporation is a biotechnology company that engages in the discovery, development, and commercialization of therapeutic products. It is engaged in the commercialization of treatments for unmet medical conditions, such as benign prostatic hyperplasia, hypertension, pulmonary arterial hypertension, cancer, and inflammatory diseases. It is the developer of a treatment known as Cialis (tadalafil), a product for the treatment of erectile dysfunction through its joint venture with Eli Lilly and Company in North America and Europe. It is also engaged in contract manufacturing services for third parties. It is in a strategic alliance with Solvay Pharmaceuticals, Inc. ICOS Corporation was established in 1989, based in Bothell, Washington. It is currently operated by Eli Lilly and Company.

Eli Lilly Careers

Joining Eli Lilly offers an unparalleled opportunity to become part of a leading global team dedicated to creating a healthier future. As a company revered for its commitment to innovation and leadership in the pharmaceutical industry, Eli Lilly is where your professional journey can flourish. Work You’ll Do At Eli Lilly, we are passionate about transforming patient care and advancing medical innovation. Our team at Eli Lilly is at the forefront of developing groundbreaking solutions in healthcare. By joining us, you will collaborate with some of the brightest minds in the industry, using cutting-edge technology to make real-world impacts. Lead with Innovation and Leadership Eli Lilly stands out in the marketplace by integrating deep industry expertise with robust research and development efforts. We are looking for professionals who are eager to drive change and lead the way in developing therapeutic breakthroughs. Explore Job Opportunities and Growth Eli Lilly offers a variety of career paths, including full-time positions and internships, across multiple functions such as research, marketing, IT, and sales. Whether you are a seasoned professional or a recent graduate, Eli Lilly provides an environment that promotes career growth and learning opportunities. Our commitment to diversity and leadership training ensures that every employee can achieve their potential. Be Part of Our Team Our team at Eli Lilly is committed to excellence and driven by a mission to improve lives. Employees enjoy a supportive culture that values collaboration, creativity, and diversity. We believe that a diverse workforce fosters innovation and helps us better connect with the communities we serve. Benefits and Culture Eli Lilly is dedicated to supporting our employees, offering competitive benefits, wellness programs, and comprehensive health care. Our culture is built on a foundation of respect, integrity, and quality, making Eli Lilly not just a great place to work, but a community to grow with. Networking and Professional Development Eli Lilly encourages continuous professional development and networking. With access to various training programs and mentorship opportunities, employees can enhance their skills and advance their careers. Our leadership is committed to nurturing talent through effective training and development strategies. Join Our Team Discover the exciting job opportunities at Eli Lilly by exploring open positions that match your skills and interests. We are continuously hiring and looking for individuals who are passionate, innovative, and ready to contribute to our mission of making life better for people around the globe. Stay Connected Keep up to date with the latest at Eli Lilly by following our careers blog. Gain insights from industry leaders and get tips on everything from crafting the perfect resume to preparing for your interview. Eli Lilly is not just a company—it's a place where you can make a difference. Explore the positions available and find out how your talents can help change the world. SEARCH ELI LILLY JOBS Stay ahead in your career with Eli Lilly, where innovation, leadership, and a commitment to diversity and growth lead the way to future advancements.
Learn more about Eli Lilly
Size
35,000 employees
Market Cap
$344.2 billion
Industry
Net Income
$6.1 billion
Founded
1876
5 Year Trend
+5.9%
Revenue
$24.5 billion
NASDAQ

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