Job title: Process Engineering Intern

Location: Waterford, Ireland
Start date: January 2026
Duration: 6-8 months

About the job

As a Process Engineering Intern, you will be part of a highly focused and integrated engineering team supporting the manufacturing and packaging of commercial pharmaceutical products. You will gain hands-on experience in a Controlled Not Classified (CNC) environment, contributing to process engineering activities, validation tasks, and continuous improvement initiatives. Your work will support the production of Auto Injectors and Lyo vials, as well as the technology transfer of new products. You will also collaborate with vendors and cross-functional teams to ensure smooth operations and equipment maintenance.

The Product Supply APU is currently expanding and includes multiple platforms for the inspection, assembly, labelling, and cartoning of autoinjectors and prefilled syringes. This internship offers a unique opportunity to develop your engineering skills in a fast-paced, innovative setting.

Ready to grow your skills while helping shape the future of healthcare? At Sanofi, you’ll be empowered to learn, ask questions, and bring your ideas to life – all while supported by inspiring mentors and collaborative teams.

About Sanofi

We’re an R&D-driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth. Our deep understanding of the immune system – and innovative pipeline – enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people’s lives.

Main responsibilities:

Ensure compliance with safety standards at all times
Provide technical support for process and equipment issues
Drive process and product improvements
Support qualification and validation of new products and processes
Analyse machine performance and production data
Manage improvement projects within defined scope, budget, and timelines
Contribute to new product introductions and capacity expansions
Assist with maintenance planning and design changes
Execute change controls and support OEE and yield improvements

About you

To excel in this role, you will need to:

Be currently enrolled in the penultimate year of an undergraduate or postgraduate (Master’s) program, with an expected graduation date in 2027
Be pursuing a degree in a STEM field (e.g., Engineering, Science, Technology, Mathematics)
Demonstrate a strong interest in engineering and manufacturing processes
Have solid analytical and problem-solving skills
Be proactive, detail-oriented, and eager to learn in a fast-paced environment
Communicate effectively and work well within cross-functional teams
Show initiative and ownership in delivering tasks and contributing to projects
Be comfortable working in a regulated, safety-conscious environment

Why choose us?

Stretch your skills through apprenticeships, internships, graduate programs, and international experiences that grow with you.

Learn from inspiring mentors and collaborative teams while contributing to real projects that shape the future of healthcare.

Build your future with access to the latest tools, digital innovation, and continuous learning that keep you ahead of the curve.

Explore more with personalized development plans, short-term gigs, and internal mobility across functions and countries.

Grow in a purpose-driven company where your voice matters and your work helps improve millions of lives.

Thrive in inclusive, flexible workplaces that support your personal and professional well-being.

Launch your career with a company that invests in you — and empowers you to reimagine what’s possible.

#LI-EUR

Pursue progress, discover extraordinary

Better is out there. Better medications, better outcomes, better science. But progress doesn’t happen without people – people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, let’s be those people.

At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com!