Senior Manufacturing Associate

Job Title: Senior Manufacturing Associate (Nights)

Location: Portsmouth, NH, (On-site)

As a Senior Manufacturing Associate at our Portsmouth site, you will play a critical role in the downstream production of therapeutic proteins that support patients worldwide. You will lead complex purification processes, ensure compliance with cGMP standards, and support operational excellence across the production floor. This role is based onsite, where hands-on work and collaboration are essential, and you will act as a subject matter resource for processes, troubleshooting, and team support.

This role follows a 12-hour day shift schedule from 7:00 PM to 7:00 AM on a rotating schedule of alternating days: two on, two off, three on, two off, two on, three off (repeating cycle).

What you will get:

• An agile career and dynamic working culture
• An inclusive and ethical workplace
• Compensation programs that recognize high performance
• Medical, dental, and vision insurance
• Opportunities to grow and develop your career
• A collaborative and team-focused environment

What you will do:

• Lead and execute downstream manufacturing processes, including chromatography and filtration operations
• Monitor production processes and ensure compliance with SOPs, cGMP, and GDP requirements
• Troubleshoot complex equipment and process issues, supporting timely resolution
• Review and approve batch records, logbooks, and support deviation investigations
• Train, mentor, and support associates across purification processes and best practices
• Coordinate material movements and ensure readiness across production areas
• Support continuous improvement initiatives to enhance safety, quality, and efficiency

What we are looking for:

• One or more years of downstream bioprocessing experience required; additional biotech industry required.
• Knowledgeable in purification processes and filtration
• Strong understanding of cGMP, documentation practices, and process flow
• Experience training or mentoring team members in a manufacturing environment
• Strong communication skills, including technical writing and collaboration
• High school diploma or equivalent required; Associate’s or Bachelor’s degree in a science-related field preferred

About Lonza

At Lonza, our people are our greatest strength. With 30+ sites across five continents, our globally connected teams work together every day to manufacture the medicines of tomorrow. Our core values of Collaboration, Accountability, Excellence, Passion and Integrity reflect who we are and how we work together. Everyone’s ideas, big or small, have the potential to improve millions of lives, and that’s the kind of work we want you to be part of.

Innovation thrives when people from all backgrounds bring their unique perspectives to the table. At Lonza, we offer equal employment opportunities to all qualified applicants regardless of race, religion, color, national origin, sex, sexual orientation, gender identity, age, disability, veteran status, or any other characteristic protected by law. If you’re ready to help turn our customers’ breakthrough ideas into viable therapies, we look forward to welcoming you on board.

Ready to shape the future of life sciences? Apply now.