Senior Scientist, Microbiology and Sterility Assurance

Senior Scientist, Microbiology and Sterility Assurance GlaxoSmithKline United States, Pennsylvania, King of Prussia 709 Swedeland Road (Show on map) Apr 04, 2026

Site Name:

USA

• Pennsylvania
• King of Prussia, USA
• Pennsylvania
• Marietta

Posted Date:

Mar 26 2026 Business Introduction At GSK, we have bold ambitions for patients, aiming to positively impact the health of 2.5 billion people by the end of the decade. Our R D focuses on discovering and delivering vaccines and medicines, combining our understanding of the immune system with cutting-edge technology to transform people's lives. GSK fosters a culture ambitious for patients, accountable for impact, and committed to doing the right thing, making sure that we focus our efforts on accelerating significant assets that meet patients' needs and have the highest probability of success. We're uniting science, technology, and talent to get ahead of disease together. Find out more: Our approach to R D This position will initially be located at the GSK's Upper Merion site in Upper Merion, Pennsylvania from 2025 to 2027/2028, and will permanently move to Marietta, Pennsylvania afterwards. Position Summary You will join a team that ensures medicines reach patients safely. In this senior scientist role you will lead microbiology and sterility assurance activities for a sterile R D manufacturing facility. You will work closely with manufacturing, quality, and development teams to prevent contamination and support product release. We value practical laboratory skills, clear communication, and a mindset for continuous improvement. This role offers growth, a chance to make a measurable impact on patient safety, and alignment with GSK's mission to unite science, technology and talent to get ahead of disease together. Responsibilities This role will provide YOU the opportunity to lead key activities to progress YOUR career. These responsibilities include some of the following:

• Provide hands-on microbiology support for sterile operations, including aseptic processing, environmental monitoring, and gowning qualifications.
• Lead investigations of unexpected microbiological results and drive corrective actions with clear root cause and risk assessment.
• Perform and review routine microbiological testing: bioburden, sterility, endotoxin, microbial identifications, and water testing.
• Develop, revise, and approve microbiological methods, SOPs, and sampling plans that support product release and stability programs.
• Partner with manufacturing, quality, and development teams to define and implement contamination control and sterility assurance strategies.
• Support validation activities, method transfers, and evaluation of rapid microbiological technologies.

Why You?

Basic Qualifications:

We are seeking professionals with the following required skills and qualifications to help us achieve our goals

• Bachelor's degree in Microbiology, Biology, Biotechnology, or a related scientific discipline.
• Minimum 3 years' hands-on experience in a pharmaceutical, biotech, or sterile manufacturing microbiology laboratory.
• Experience with environmental monitoring, aseptic techniques, gowning, and contamination control.
• cGMP principles and experience working to regulatory quality standards.
• Experience performing bioburden, sterility, endotoxin testing, and microbial identifications.

Preferred Qualifications:

If you have the following characteristics, it would be a plus

• Advanced degree (Master's) in Microbiology or related field.
• Experience with method development, validation, or transfers for microbiological assays.
• Familiarity with pharmacopeial microbiology standards and compendial methods.
• Experience using laboratory information management systems (LIMS) and electronic documentation.
• Prior experience reviewing microbiology data for regulatory submissions or CMC support.
• Demonstrated ability to lead technical investigations and communicate findings clearly to stakeholders.

Work Model Requirement to be onsite average 3-4 days per week for laboratory and sterile-facility work. Candidates must be able to work on site as needed to meet operational and sterility assurance responsibilities. What we offer You will have the chance to grow your technical and leadership skills. You will work on meaningful projects that protect patient safety. You will collaborate with experienced colleagues across disciplines and contribute to a culture that values inclusion, learning, and shared purpose. How to apply If this role speaks to your experience and ambitions, we encourage you to apply. We welcome applicants from all backgrounds and perspectives. Join us and help get ahead of disease together. Please visit GSK US Benefits Summary to learn more about the comprehensive benefits program GSK offers US employees. Why GSK? Uniting science, technology and talent to get ahead of disease together. GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases

• to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we're committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people. If you require an accommodation or other assistance to apply for a job at GSK, please contact the appropriate Recruitment Staff by emailing us at

• usrecruitment.

adjustments@gsk.com GSK is an Equal Opportunity Employer. This ensures that all qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, genetic information (including family medical history), military service or any basis prohibited under federal, state or local law. Important notice to Employment businesses/ Agencies GSK does not accept referrals from employment businesses and/or employment agencies in respect of the vacancies posted on this site. All employment businesses/agencies are required to contact GSK's commercial and general procurement/human resources department to obtain prior written authorization before referring any candidates to GSK. The obtaining of prior written authorization is a condition precedent to any agreement (verbal or written) between the employment business/ agency and GSK. In the absence of such written authorization being obtained any actions undertaken by the employment business/agency shall be deemed to have been performed without the consent or contractual agreement of

GSK. GSK

shall therefore not be liable for any fees arising from such actions or any fees arising from any referrals by employment businesses/agencies in respect of the vacancies posted on this site. Please note that if you are a US Licensed Healthcare Professional or Healthcare Professional as defined by the laws of the state issuing your license, GSK may be required to capture and report expenses GSK incurs, on your behalf, in the event you are afforded an interview for employment. This capture of applicable transfers of value is necessary to ensure GSK's compliance to all federal and state US Transparency requirements. For more information, please visit the Centers for Medicare and Medicaid Services (CMS) website at https://openpaymentsdata.cms.gov/