Scientist

Closing Date: 28th September 2026 (COB)

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

For candidates seeking to be located at our Stevenage site, this role will temporarily be based at Stevenage. However, the Company plans to relocate its offices to Ware, UK. The location of this role will therefore subsequently change to Ware, UK in accordance with timelines to be set by the Company. The relocation is currently proposed to take effect by early 2029.

We are seeking a crystallisation process development scientist to join our team in the Pharmaceutical Sciences department within Drug Product Development.

The Global Crystallisation team within Pharmaceutical Sciences designs a final particle formation process which optimizes drug product processing and performance, based on holistic understanding of how structure influences particle and powder properties.  As projects advance through development, crystallisation scientists contribute to project teams by performing laboratory studies, analyzing data and supporting plant campaigns, from lead optimization up to and including the transfer and industrialization of manufacturing processes to commercial facilities.  The role is fast-paced and dynamic as you may be working on a number of multi-disciplinary teams. The department is an exceptional training ground on several skills and disciplines.

• Design crystallisation processes to produce active pharmaceutical ingredients (APIs) with appropriate properties for drug product processing.

• Identify and resolve polymorphic form issues within crystallisation processes

• Develop process models which demonstrate predictive capability and first-principles process understanding.

• Independently execute laboratory protocols and experiments to link the structural and bulk properties of an API to its downstream performance in order to inform R&D decision making.

• Work effectively and collaboratively on multi-disciplinary development teams, alongside Chemists, Chemical Analysts, Engineers, Modelers and Pharmaceutical Scientists.

• Perform data management and some data interpretation, recording results effectively and communicating results in technical reports.  Effectively present at internal meetings.  May participate in technical reviews on projects.

• Comply with local regulatory and data integrity requirements, including GSK policies and procedures, with high quality and attention to one’s own safety.

• Own and maintain laboratory equipment, where required. Actively research improvements in equipment capabilities to input into new technology investments where there is a positive business case for doing so.

Basic Qualifications:

We are looking for professionals with these required skills to achieve our goals:

• BSc in Chemical Engineering, Materials Science, Chemistry or related discipline

• Experience working in an organic chemistry lab environment

• Demonstrated learning agility combined with strong critical thinking and problem-solving capabilities

Preferred Qualifications:

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

• PhD in Crystallisation or related field OR MSc with proven industrial experience

• Experience in independent planning and execution of experiments including interpretation of analytical data.

• Experience in the design of crystallisation processes to produce APIs with appropriate properties for drug product processing.

• Familiarity with physical and solid-state characterisation techniques.

• Experience in working in and making contributions to multi-disciplinary teams.  Must be inclusive, respectful, and supportive of colleagues.

• Effective oral and written communication skills.  Proven ability to troubleshoot and diagnose problems.  May have equipment ownership or lab supervisory responsibilities.

• Experience with documentation using electronic notebooks.

What we offer
You will find real opportunities to learn and grow. You will work alongside skilled colleagues across disciplines. Your work will help drive better outcomes for patients. We welcome applicants from all backgrounds and encourage you to apply, even if you do not meet every preferred qualification. Please tell us how your skills and experience match the role when you apply.

Skills

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.

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.

We believe in an agile working culture for all our roles. If flexibility is important to you, we encourage you to explore with our hiring team what the opportunities are.

Should you require any adjustments to our process to assist you in demonstrating your strengths and capabilities contact us at [email protected] where you can also request a call.

Please note should your enquiry not relate to adjustments, we will not be able to support you through these channels. However, we have created a  Recruitment FAQ guide. Click the link where you will find answers to multiple questions we receive

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