
Manufacturing and Supply
Where the
miracles of
science are made
a reality for patients
Development Scientist
At a glance
Our teams produce and deliver over 4 billion units of medicines and vaccines every year, ensuring every breakthrough gets to the people who need it most.
Our state-of-the-art facilities, AI-powered smart factories, and cutting-edge automation are redefining what’s possible: ensuring treatments reach patients faster, safer, and more sustainably than ever before. This is where your skills, ambition, and passion can shape the future of healthcare.
Development Scientist
About Waterford
For more than 20 years, our Waterford team has continued to grow and diversify to serve patients around the world. Today, a team of almost 800 work together at a state-of-the-art biopharmaceutical and medical device campus. Recognised through multiple local and national awards, Sanofi Waterford offers flexible working and access to a world of opportunities to grow your career at one location. As well as attractive benefits, the team enjoy access to an onsite gym and medical centre that underpin a strong commitment to health and wellbeing.
About the job
Our Team:
The Manufacturing Sciences team, operating within the MSAT laboratory at Sanofi Waterford plays an integral role in new product introduction, technology transfer and supporting on-going lifecycle management activities for Sanofi Waterford and the wider Sanofi network. The team consists of passionate, data driven scientists who lead technical programs for a variety of complex biologics including enzyme replacement therapies and monoclonal antibodies. As a part of this team you will gain hands on experience with these products, developing manufacturing processes and working with cross functional teams to provide scientific expertise to ensure our products get to the patients who need them.
Main responsibilities:
·Directs and participates in process and product life cycle and development activities. Authors and reviews process development sections of regulatory and technical documents, study reports and technology transfer documents
·Establishes a comprehensive knowledge of the Critical Process Parameters, Critical Product Quality Attributes and Characteristics to provide SME support to the network
·Establishes analytical methods to support biophysical, solid state and primary packaging characterisation
·Designs, executes and documents technical studies to investigate product and process robustness, scale-up, stability and degradation pathways for therapeutic proteins
·Represents the Manufacturing Sciences department on cross functional teams across the Sanofi network delivering technical expertise and knowledge providing the link between R&D and Manufacturing
·Participates in collaborative research programs while also mentoring graduate and junior scientists helping them reach their full potential
About you
·MSc (Preferably by Research) or PhD in Pharmaceutical Science, Pharmaceutical Eng., Biotechnology, Biopharmaceutics, Pharmacy with relevant industry or post-doctorate experience.
·Strong technical knowledge in either Protein, Physical or Manufacturing Sciences
·Hands on experience performing product and process characterisation in a selected discipline
·Proteins – Structural Protein Chemistry (i.e., CD, FTIR, Fluorescence, UV-VIS) and aggregation (i.e., HPLC, DLS, Archimedes, MFI)
·Physical - Solid State (i.e., XRD, DSC, TGA, SEM, DVS)
·Manufacturing Sciences - Pumping, Mixing, Filling, Lyophilisation and CCIT
·Excellent oral and written communication skills with ability to influence at senior level
·Interest and passion for science contributing to an energised working environment
·Ability to quickly adapt to changes in project direction
·Technical expertise in either: Protein, Physical or Manufacturing Sciences
·Be able to drive change and find innovative ways of performing technical investigations
·Liaise transversally with peers at all levels throughout the Sanofi network
·Exhibit strong management competencies – providing strong scientific thinking and rationale
·It would be advantageous to have:
•Expertise in lyophilisation – Process and product development as well as equipment understanding
•Fundamental knowledge of the role of excipients in lyophilised and liquid biopharmaceuticals
•Demonstrated track record of peer-reviewed publications and academic contributions
Language: English
Why choose us?
Bring the miracles of science to life alongside a supportive, future-focused team.
Discover endless opportunities to grow your talent and drive your career, whether it’s through a promotion or lateral move, at home or internationally.
Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.
Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs and at least 14 weeks’ gender-neutral parental leave.
Play an instrumental part in creating best practice within our manufacturing facility.
Our Waterford site is easily accessible from the M9 and offers excellent facilities including on-site free parking, a subsidized restaurant, and newly refurbished gym.
Find out more about this location

Why work with us
- We’re problem-solvers and pioneers. United by the belief that everyone deserves a healthier future. We create best-in-class vaccines that prevent disease and protect lives.
- Innovation drives us. From AI and mRNA to next-gen science, we push the boundaries to deliver first- and best-in-class vaccines for infectious diseases worldwide.
- Growth happens here. With bold investments in R&D and world-class facilities, Sanofians across the entire vaccine lifecycle are shaping the future of global health.
- We do what’s right. Sustainability and DE&I drive our positive global impact—because the diverse communities Sanofians represent are the patients we serve.
All-in on diversity
At Sanofi, diverse perspectives fuel the best solutions for patients. Hear from Monique Vessey, our Supply Chain Transformation Leader, on how her background shapes her approach to delivering life-changing medicines.

"Manufacturing and Supply is the bridge between the science that happens in research laboratories and the people and communities we serve."

Brendan O’Callaghan
Executive Vice President of Manufacturing and Supply
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