Quality Control Sterility Microbiologist

Join Us in Changing Lives.

At OXB, our people are at the heart of everything we do. We’re on a mission to enable life-changing therapies to reach patients around the world—and we’re looking for passionate individuals who embody our core values every day: Responsible, Responsive, Resilient, and Respectful.

We are currently recruiting for a QC Microbiologist to join the Quality Control team. The purpose of this role is to test and report on raw materials, intermediates, sterility testing of finished products, the manufacturing environment and stability samples to enable product release and meet regulatory requirements.

Your responsibilities in this role would be:

Testing includes environmental monitoring, bioburden (membrane filtration) and endotoxin testing (LAL), sterility testing (within isolator), microbial identification, growth promotion testing, operator qualification and media qualification testing
Performing aseptic fill finish processing microbiological testing activities
Participating in continuous improvement initiatives to enhance working practices
Supporting internal audits to maintain and improve Quality systems
Maintaining stock control of QC test materials for use within the Microbiology Lab and Production areas
Co-ordinating microbiology OOS/OOT results to help identify contributory factors and assign root cause
Reviewing and updating departmental documentation
Supporting Senior Microbiologist and QC Manager with training of new staff
Reporting to Team Lead

We are looking for:

Thorough understanding of microbiological test methods and their application in OXB
Experience with sterility testing of finished products
Understanding of microbiological identification techniques and their use
Relevant industrial/laboratory experience in Microbiology testing and techniques
Basic knowledge of cGMP
Flexibility to work shifts covering the hours from 07.00am to 03.00am Mon-Fri

About Us:

OXB is a quality and innovation-led viral vector CDMO with a mission to enable its clients to deliver life changing therapies to patients around the world. One of the original pioneers in cell and gene therapy, we have more than 25 years of experience in viral vectors; the driving force behind the majority of gene therapies.

OXB collaborates with some of the world’s most innovative pharmaceutical and biotechnology companies, providing viral vector development and manufacturing expertise in lentivirus, adeno-associated virus (AAV) and adenoviral vectors. OXB’s world-class capabilities span from early-stage development to commercialisation. These capabilities are supported by robust quality-assurance systems, analytical methods, and depth of regulatory expertise.

Why Join Us?

🧘 Wellbeing programmes that support your mental and physical health
🚀 Career development opportunities to help you grow and thrive
🤝 Supportive, inclusive, and collaborative culture
🧪 State-of-the-art labs and manufacturing facilities
🌍 A company that lives its values: Responsible, Responsive, Resilient, Respect

We want you to feel inspired every day. At OXB, we’re future-focused and growing fast. We succeed together—through passion, commitment, and teamwork.

Ready to Make a Difference?

Collaborate. Contribute. Change lives.