Associate/Research Scientist – Upstream Process Sciences

Company: VRS Recruitment
Apply for the Associate/Research Scientist – Upstream Process Sciences
Location: Slough
Job Description:

Job Description

A successful pharmaceutical company is looking for an Associate Scientist / Research Scientist to join its Drug Substance Process Sciences team and support the development of innovative biologics.

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This is a hands-on laboratory role focused on upstream process development, optimisation and characterisation, with exposure to mammalian cell culture, high-throughput platforms and bioreactor systems from microscale through to pilot scale.

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Key Responsibilities

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  • Design and execute upstream process development studies.
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  • Develop and optimise mammalian/CHO cell culture processes.
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  • Operate shake flasks, Ambr® systems and laboratory-scale bioreactors.
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  • Apply DoE and QbD approaches to process optimisation and characterisation.
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  • Support scale-up, troubleshooting, technology transfer and manufacturing activities.
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  • Analyse experimental data and communicate findings through reports and presentations.
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  • Collaborate with Cell Line Development, Analytical Sciences, Downstream Development and Manufacturing teams.
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  • Maintain high standards of GMP, data integrity, HSE and laboratory compliance.
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About You

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Essential:

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  • BSc or MSc in Biotechnology, Biochemical Engineering, Chemical Engineering, Molecular Biology, Cell Biology, Bioprocess Engineering or a related discipline
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  • Hands-on experience with mammalian/CHO cell culture and biologics process development
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  • Experience with Ambr® and/or laboratory-scale bioreactors
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  • Understanding of cell culture scale-up and process characterisation
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  • Experience with DoE and statistical data analysis
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  • Strong scientific problem-solving and troubleshooting skills
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Desirable:

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  • Perfusion or ATF experience
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  • Technology transfer or manufacturing support experience
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  • Exposure to downstream processing or integrated process development
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This role is offered on an initial 12 month contract with realistic potential for extension.

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Why Apply?

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An excellent opportunity to develop your career within upstream bioprocess development, gaining hands-on experience across cell culture, bioreactor systems, process optimisation, scale-up and technology transfer within a successful pharmaceutical environment.

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Keywords: Upstream Process Development | Bioprocessing | Mammalian Cell Culture | CHO | Bioreactors | Ambr | Process Characterisation | Scale-Up | DoE | QbD | Perfusion | ATF | Biologics | Therapeutic Proteins | GMP | Pharmaceutical | Biopharmaceutical

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Posted: August 30th, 2026