
Manufacturing and Supply
Where the
miracles of
science are made
a reality for patients
Senior Engineer II, MSAT
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.
Reporting to: Head of Manufacturing Technology, EVF
Location: Modulus, Tuas Singapore
About the Job
Sanofi Manufacturing and Supply Organization is preparing its future through an ambitious program named Modulus. The Modulus Project is at the cornerstone of Sanofi strategy as it aims at creating a new manufacturing concept consisting of a new generation of evolutive multi-product facilities, modular, adaptable and agile, leveraging new disruptive technologies, to better address vaccine business challenges as well as Specialty Care biological products. One of these two Modulus is implemented in Singapore in a new Greenfield site, with a design similar to the one in Neuville (France). Our manufacturing sites are state-of-the-art, powered by big data and digital. It is the bridge between scientific advances and transformative medicines and will be serving millions of people around the world.
Manufacturing Science and Analytical Technology (MSAT) drives the industrialization and the improvement of biological processes and products. It embarks new technologies and digital trends. It is the keeper of manufacturing process knowledge. MSAT is at the crossroad of R&D and production. It is a multi-disciplinary function that provides expertise in process, manufacturing sciences, process modeling, statistical analysis, process validation and technology transfer.
The MSAT team in Sanofi Modulus Singapore is seeking a Senior Engineer II to provide technical expertise for upstream and downstream biological process areas in various activities like new product introduction, technology transfer, shopfloor support and troubleshooting activities at manufacturing scale, as well as lead process investigations. The MSAT Senior Engineer II is expected to lead complex and/or multi-step deviations & CAPA plans, and can be consulted by Manufacturing leads for complex equipment & operational workflows, and/or those with high interdependency. This role also provides coaching to junior members of the MSAT and manufacturing teams, and can specialize to become a network SME/KOL.
Performance Standards: Duties & Responsibilities
Process transfer & validation
Upstream and downstream SME to provide scientific/technical expertise including process equipment, process mass balances, process validation and process design & control.
Work closely with MSAT DS leads to facilitate technology transfer of new molecules, including defining manufacturing processes, establishing strategies behind process validation and process control.
Author complex or multi-process step MSAT technical documents (e.g. memos, protocols, reports, plans) during process transfer & validation phase and process monitoring.
Build and promote systems and tools for (i) standardization concepts & implementation, (ii) sharing and retention of design knowledge, within site and Sanofi network.
Manufacturing support
Provide upstream and downstream MSAT technical perspective and main author for MSAT documentation in complex or multi-process step situations such as change controls, impact assessments and memos.
Provides consultation to manufacturing coworkers from scientific and technological perspectives.
In process disruptions, serve as secondary shopfloor escalation contacts. For complex/process-related investigations, independently lead process risk/gap assessments, investigations, change controls & CAPA implementation. Is part of after-hours MSAT on-call system to support manufacturing disruptions.
Molecule lifecycle management & yield improvement activities
Identify trends, assess potential causes and propose & own improvement activities, including working cross-functionally within the site and network.
Lead site-level projects involving key process changes. May lead network-level projects.
Develops complex or multi-process step MSAT technical documents during process improvements.
Is (or work towards) a domain expert at site, or network key opinion leader.
May mentor junior MSAT coworkers as well as manufacturing colleagues.
Pre-requisites
Knowledge, skills & competencies
An effective communicator and productive in multi-functional & multi-cultural communication settings.
Has excellent analytical, consultative and diagnostic skills with ability to make sound, data-based business decisions.
Self-directed and comfortable working with a high level of autonomy, for initiating activities to close gaps and complete assigned tasks.
Data-driven and scientifically curious.
Qualifications/ Requirements
Holds a scientific or engineering degree (or higher), preferably in Biotechnology, Biological Sciences, or Chemical Engineering.
Has more than 8 years of broad industrial experience in biopharmaceutical projects, particularly in technology transfers, process validation and manufacturing support.
Possesses strong understanding of critical processes/operations as well as interactions between different process parameters.
Has hands-on experience in pilot-scale or large-scale facilities, of cell culture and/or purification techniques.
Is familiar with cGMP concepts in biopharmaceutical environments and up-to-date with regulatory requirements and industry best practices.
Play to Win behaviours
Stretch to go beyond the level we have operated at up until now
Take Action instead of waiting to be told what to do
Act in the interest of our patients and customers
Think One Sanofi: we put the interest of the organisation ahead of ourselves or our team
Pursue Progress. Discover Extraordinary.
Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.
At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law.
Watch 'One day at Sanofi' and check out our Diversity Equity and Inclusion initiatives at sanofi.com

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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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