Job description
Site Name: UK - Hertfordshire - Stevenage
Posted Date: Nov 20 2025
430624 Senior Scientist – Soluble Biomarkers
We are seeking a Senior Scientist to join the UK Soluble Biomarkers team in our Biomarkers and Bioanalytical Platforms division. The successful candidate will be based at the GSK R&D campus in Stevenage, Hertfordshire.
Our team of lab-based scientists develops bespoke immunoassays to measure soluble biomarkers in clinical study samples, using a variety of analytical platforms. The data we generate is critical to help GSK project teams make key decisions on the development of new medicines.
Please note that due to the nature of this position, a regular onsite presence will be required.
We create a place where people can grow, be their best, be safe, and feel welcome, valued and included. We offer a competitive salary, an annual bonus based on company performance, healthcare and wellbeing programmes, pension plan membership, and shares and savings programme.
We embrace modern work practises; our Performance with Choice programme offers a hybrid working model, empowering you to find the optimal balance between remote and in-office work.
Discover more about our company wide benefits and life at GSK on our webpage Life at GSK | GSK
In this role you will
* Develop and validate ligand-binding assays for soluble biomarker endpoints in early-stage clinical studies (e.g. enabling and first-time-in-human)
* Perform sample analysis and be accountable for delivering biomarker results to study teams in a timely manner, ensuring full compliance with GCP regulations
* Work with the rest of the team to ensure day-to-day responsibilities are met (equipment/consumable management, reviewing laboratory records and reports etc.)
* Work with our CRO partners to manage assay transfers as required
* Build effective relationships with our business partners, both internal and external
* Employ a technology/platform-agnostic mindset and an automation-first approach when developing new methods or assessing new modalities
* Drive innovation and actively contribute to process improvements (scientific, regulatory/quality)
Why you?
Basic Qualifications & Skills:
We are looking for professionals with these required skills to achieve our goals:
* Graduate (or higher) degree in biology, biochemistry, chemistry or pharmacology
* Experience running bioanalytical or biomarker studies, with a focus on good record keeping and data integrity and preferably in a GxP regulated environment
* Experience in the development and validation of quantitative immunoassays using one or more of the following: MSD, Gyrolab, SIMOA
* Ability to work collaboratively within a team, effectively manage multiple priorities, and present both written and oral communications to R&D stakeholders
Preferred Qualifications & Skills:
Please note the following skills are not necessary, just preferred, if you do not have them, please still apply:
* Experience in tailoring bespoke biomarker assay validations to the context of use for the data
* Understanding of regulatory aspects of human biological sample management and Good Clinical Practice (GCP)
* Experience of interacting with LabQA/regulatory inspectors
* Experience with automated liquid handling platforms (e.g. Labcyte Echo, SPT Labtech DragonFly, Agilent BRAVO, Hamilton STAR)
* Experience using Thermo Watson LIMS
Closing Date for Applications – 4th of December, 2025 (COB)
Please take a copy of the Job Description, as this will not be available post closure of the advert.
When applying for this role, please use the ‘cover letter’ of the online application or your CV to describe how you meet the competencies for this role, as outlined in the job requirements above. The information that you have provided in your cover letter and CV will be used to assess your application.
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 .
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 on UKRecruitment.Adjustments@gsk.com or 0808 234 4391. The helpline is available from 8.30am to 12.00 noon Monday to Friday, during bank holidays these times and days may vary.
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 UK Recruitment FAQ guide. Click the link and scroll to the Careers Section where you will find answers to multiple questions we receive
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