Contamination Control Microbiologist – GMP Ops

Johnson & Johnson Innovative Medicine; Leiden; On-site; EUR 70,000 - 100,000; Full time

Job summary

Johnson & Johnson in Leiden is seeking a Process Microbiologist to strengthen an Operations Large Molecules team. You will develop contamination control strategies, hygiene programs, and investigations to prevent microbiological risks in bioreactor operations.

You will train staff, work with QA and manufacturing, and support cross‑site improvements to enhance biosafety and product quality in a fast‑paced environment.

Qualifications

• BSc or MSc degree in science, preferably microbiology or related.

Responsibilities

• Set up and improve contamination control strategies in GMP production.
• Lead training curricula on microbiological hygiene and contamination prevention.
• Support investigations into deviations and contamination events.
• Collaborate with QA microbiologists, operations, and maintenance on cross‑site projects.
• Communicate risk assessments and preventive actions to production teams.

Skills

GMP knowledge

Lean manufacturing

Manufacturing Engineering

MSAT

Project engineering

Problem solving

Communication

Coaching

Quality mindset

Education

BSc/MSc in science (microbiology preferred)

Tools

Aseptic processing

Job description

Johnson & Johnson in Leiden is seeking a Process Microbiologist to strengthen an Operations Large Molecules team. You will develop contamination control strategies, hygiene programs, and investigations to prevent microbiological risks in bioreactor operations.

You will train staff, work with QA and manufacturing, and support cross‑site improvements to enhance biosafety and product quality in a fast‑paced environment.