Manufacturing Operative - 4 on 4 off shift in Irvine

Manufacturing Operative – 4 on 4 off shift

Merck Life Science is hiring a Manufacturing Operative for a 4 on 4 off shift pattern, offering a permanent role in a highly regulated, aseptic environment.

Work Your Magic with us!

Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich mix of people, customers, patients, and planet. That\’s why we are always looking for curious minds that see themselves imagining the unimaginable with us.

Your Role

You will have an integral role in ensuring a positive difference is made to millions of people’s lives through overseeing Liquid Media Production, performing aseptic dispensing in a cleanroom environment, and carrying out assigned tasks across the Liquid Media Production area. This permanent position operates on a 4 on 4 off shift pattern consisting of 2 days/2 nights, working 12‑hour shifts of 7‑7.

Key Accountabilities

• Ensure the production facility is in a clean and audit‑ready state.
• Complete all documentation in accordance with current Good Manufacturing Practices (GMP).
• Use SAP for completion of electronic batch documentation.
• Verify cleanrooms are within specification prior to use.
• Verify scales are in specification prior to use using appropriate check weights.
• Complete clean‑room validations prior to expiry of validated period and maintain uninterrupted validation throughout the year.

Who You Are

• Degree qualified in a Biological or Chemical science or have previous experience in a manufacturing/production environment.
• Possess effective numeracy and literacy skills and are well‑versed in ensuring accurate work is always maintained.
• Experience in a GMP environment is desirable.
• Previous experience with aseptic technique in cleanroom environment.
• Previous systems experience is desirable; direct experience of using SAP is advantageous.

What We Offer

We are curious minds that come from a broad range of backgrounds, perspectives, and life experiences. We believe that this variety drives excellence and innovation, strengthening our ability to lead in science and technology. We are committed to creating access and opportunities for all to develop and grow at your own pace. Join us in building a culture of inclusion and belonging that impacts millions and empowers everyone to work their magic and champion human progress!

Apply now and become a part of a team that is dedicated to sparking discovery and elevating humanity!

Seniority Level

Entry level

Employment Type

Full‑time

Job Function

Production and Manufacturing