Welcome to Haleon. We’re a purpose-driven, world-class consumer company putting everyday health in the hands of millions. In just three years since our launch, we’ve grown, evolved and are now entering an exciting new chapter – one filled with bold ambitions and enormous opportunity.
Our trusted portfolio of brands – including Sensodyne®, Panadol®, Advil®, Voltaren®, Theraflu®, Otrivin®, and Centrum® – lead in resilient and growing categories. What sets us apart is our unique blend of deep human understanding and trusted science.
Now it’s time to fully realise the full potential of our business and our people. We do this through our Win as One strategy. It puts our purpose – to deliver better everyday health with humanity – at the heart of everything we do. It unites us, inspires us, and challenges us to be better every day, driven by our agile, performance-focused culture.
We have a new role for a Senior Scientist - Mass Spectrometrist in our Analytical Science & Technology Team. The role is a full-time 24 Month Fixed Term Contract/ Secondment oppertunity.
The Senior Scientist role is to support the Extractable and Leachable work within the team. This team specialises in assessing changes made to the packaging components for our products. Following an assessment of the change you will:
Identify compounds that extract from the packaging. Identify whether these compounds leach into the product. Where applicable, develop and validate methods that determine the concentration of the leachables in the product.
This is a practical role that utilises both liquid chromatography - mass spectrometry (LC-MS) and gas chromatography – mass spectrometry (GC-MS) to identify and quantify components at low concentrations. The role requires close collaboration with packaging scientists, toxicology, and regulatory staff to maintain and grow the business.
Role and Responsibilities
Working in a team of Extractable and Leachable Scientists you will manage several projects that will require the following:
Perform extractable and leachable risk assessments to support changes in the packaging for products that are in the market.
Independently, perform extractions of packaging components to be run on advanced instrumentation.
Independently, quantify extractactables and leachables using quadrupole GC-MS and LC-MS instruments.
Independently, identify extractables and leachables using GC-QToF and LC-QToF MS instrumentation.
Utilise data from the above techniques to elucidate structures of leachable in products.
Validate methodology in accordance with ICH Q2 guidelines.
Identify and quantify the levels of extractables that leach into the products.
Additional responsibilities include:
Liaising with key customers to define the criteria and timings for analytical development/validation.
Collaborate with Toxicology and Regulatory departments to provide analytical expertise regarding submissions and to answer questions from Health Authorities.
Utilise proactive thinking to generate creative solutions to complex technical problems.
Ability to work in a regulated environment.
What are we looking for?
University Degree (B.Sc.) or equivalent in a relevant field (Chemistry).
Experience in operating and maintaining MS instruments.
Knowledge of USP / EP requirements for Extractables and Leachable testing of medicines.
Knowledge of ISO10993 guidance for Extractables and Leachable testing for medical devices.
Knowledge of FDA and EU guidance for Extractables and Leachable in Food and Cosmetics.
Creative and imaginative in approaching diverse projects.
Exercises strong degree of technical knowledge to accomplish assigned objectives.
Remains focused and prioritises effectively in rapidly changing circumstances.
Develops strong collaborative relationships with other departments and fosters a 'one team' approach.
Excellent report writing and communication skills.
Demonstrated ability in complex and structured problem solving.
Additional/Preferred experience:
If you possess the following in addition to the above, it would be a plus:
A master’s degree or Ph.D. (or equivalent) in a relevant field (Analytical Chemistry).
Application Details:
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.
Job Posting End Date
2026-05-21
Haleon are committed to mobilising our purpose in a way that represents the diverse consumers and communities who rely on our brands every day. It guides us in creating an inclusive culture, where different backgrounds and views are valued and respected – all in support of understanding and best serving the needs of our consumers and unleashing the full potential of our people. It’s important to us that Haleon is a place where all our employees feel they truly belong.
During the application process, we may ask you to share some personal information, which is entirely voluntary. This information ensures we meet certain regulatory and reporting obligations and supports the development, refinement, and execution of our inclusion and belonging programmes that are open to all Haleon employees.
The personal information you provide will be kept confidential, used only for legitimate business purposes, and will never be used in making any employment decisions, including hiring decisions.
If you require a reasonable adjustment or accommodation or other assistance to apply for a job at Haleon at any stage of the application process, please let your recruiter know by providing them with a description of specific adjustments you are requesting. We’ll provide all reasonable adjustments to support you throughout the recruitment process and treat all information you provide us in confidence.
The Haleon recruitment team will contact you using a Haleon email account (@haleon.com). If you are not sure whether the email you received is from Haleon, please get in touch.