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Senior Scientist

Kelly® Science & Clinical is seeking a **Senior Scientist with bioreactor and cell culture expertise** to join our team in Irvine, CA. In this role, you’ll help advance novel vaccines, advanced therapies, and regenerative medicine breakthroughs by collaborating with top biotech and pharmaceutical partners.

Duration: 3-month contract (potential for conversion)

Shift: 9:00 AM – 5:00 PM

Pay Rate: $55–$58/hour

Key Responsibilities

+ Design and execute experimental strategies for new product and technology development.

+ Lead and conduct bioreactor and cell culture studies to support product development.

+ Operate and optimize bench-top bioreactors (10 mL – 3 L)

+ Support development of new cell culture media products and contribute to assay development as needed.

+ Work with a variety of cell lines, including CHO, HEK, and immune cells.

+ Mentor junior scientists in bioreactor operations and cell culture techniques.

+ Partner with marketing and product teams by:

+ Delivering presentations and contributing to publications.

+ Engaging with key customers and collaborators.

+ Participating in scientific conferences.

+ Contribute to long-term R&D planning initiatives.

+ Maintain and expand scientific expertise in alignment with company products and strategic goals.

Qualifications

+ Education:

+ M.S. with 8+ years of relevant experience, OR

+ Ph.D. with 0–5 years of experience in Life Science, Biochemistry, Cell Biology, or related field.

+ Experience:

+ Minimum 3 years of direct bioreactor operation.

+ Hands-on experience with small-scale bioreactors (10 mL – 3 L)

+ Broad scientific knowledge across Chemistry, Biochemistry, Cell Biology, and Microbiology.

+ Proven ability to develop and conduct new assays as needed.

+ Nice to Have:

+ Experience with larger or pilot-scale systems is a plus.

+ Proficiency with CHO and HEK cell lines, with interest or experience in immune cells.

As part of our promise to talent, Kelly supports those who work with us through a variety of benefits, perks, and work-related resources. Kelly offers eligible employees voluntary benefit plans including medical, dental, vision, telemedicine, term life, whole life, accident insurance, critical illness, a legal plan, and short-term disability. As a Kelly employee, you will have access to a retirement savings plan, service bonus and holiday pay plans (earn up to eight paid holidays per benefit year), and a transit spending account. In addition, employees are entitled to earn paid sick leave under the applicable state or local plan. Click here (https://www.mykelly.com/help-support-working-with-kelly-us/#Benefits) for more information on benefits and perks that may be available to you as a member of the Kelly Talent Community.

Why Kelly ® Science & Clinical?

Kelly Science & Clinical is your connection to premier scientific and clinical companies looking to hire industry experts just like you. Our team creates expert talent solutions to solve the world’s most critical challenges. Every day, we match science professionals with dream jobs that fit their skills, interests, and career goals—it’s the way we think job searching should be. Nearly 100 percent of our science recruiters have a professional background and education in science, so we know a thing or two about the science market and how to get your expertise noticed.

About Kelly

Work changes everything. And at Kelly, we’re obsessed with where it can take you. To us, it’s about more than simply accepting your next job opportunity. It’s the fuel that powers every next step of your life. It’s the ripple effect that changes and improves everything for your family, your community, and the world. Which is why, here at Kelly, we are dedicated to providing you with limitless opportunities to enrich your life—just ask the 300,000 people we employ each year.

Kelly is committed to providing equal employment opportunities to all qualified employees and applicants regardless of race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, age, marital status, pregnancy, genetic information, or any other legally protected status, and we take affirmative action to recruit, employ, and advance qualified individuals with disabilities and protected veterans in the workforce. Requests for accommodation related to our application process can be directed to the Kelly Human Resource Knowledge Center. Kelly complies with the requirements of California’s state and local Fair Chance laws. A conviction does not automatically bar individuals from employment. Kelly participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.

Kelly Services is proud to be an Equal Employment Opportunity and Affirmative Action employer. We welcome, value, and embrace diversity at all levels and are committed to building a team that is inclusive of a variety of backgrounds, communities, perspectives, and abilities. At Kelly, we believe that the more inclusive we are, the better services we can provide. Requests for accommodation related to our application process can be directed to Kelly’s Human Resource Knowledge Center. Kelly complies with the requirements of California’s state and local Fair Chance laws. A conviction does not automatically bar individuals from employment.