Senior Maintenance Technician

We are searching for the best talent for the Senior Maintenance Technician to be based in Sassenheim. You will join a newly commissioned site to keep biotech manufacturing equipment, production assets, and utilities safe, reliable, and operational, supporting the local Sassenheim team and the larger Leiden maintenance department (80 FTE); this is a shift role (16/7) with 37.3 effective working hours per week and a 26.19% shift allowance — your hands‑on work will shape site readiness and manufacturing success while you collaborate across teams and occasionally support Leiden colleagues!

You will be responsible for:

• Execute preventive, corrective, and breakdown maintenance on manufacturing equipment and utility installations, and formally hand over completed work to equipment/utility owners to maintain production continuity.
• Lead advanced second-line troubleshooting and analyze complex failures, sharing clear findings with colleagues and contractors to reduce repeat downtime.
• Lead and participate in root cause investigations and reliability improvement initiatives, proposing and implementing changes that increase equipment availability.
• Record troubleshooting results, fault trees, code analysis, and materials used in the CMMS; determine spare part needs and manage parts retrieval to minimize delays.
• Set priorities with operations, support and coordinate external service providers during maintenance activities, and contribute to installation, commissioning, and qualification of new equipment.
• Mentor less experienced technicians, maintain accurate maintenance documentation, perform periodic checks and LOTO activities, and ensure all work follows safety, compliance, and GMP standards.

Qualifications/Requirements:

• MBO 3/4 level or VAPRO B/C in Mechatronics, Electrical Engineering, or Measurement & Control Technology.
• 3–8 years of hands‑on experience in a maintenance or technical environment with proven ability to locate, analyze, and resolve malfunctions.
• Strong understanding of production equipment and utility systems, with good judgment on when to escalate based on operational risk.
• Practical proficiency with CMMS and MS Office for recording maintenance activities and reporting.
• Holds NEN certification or is willing to obtain it, and possession of a valid B driving license.
• Collaborative communicator with a proactive, results‑oriented mindset, strong teamwork skills, and a clear focus on quality and safety.

Preferred Skills:

Accountability, Agile Manufacturing, Agility Jumps, Communication, Equipment Maintenance, Good Manufacturing Practices (GMP), Issue Escalation, Manufacturing Equipment, OSHA Compliance, Plant Operations, Predictive Maintenance, Problem Management, Process Oriented, Professional Ethics, Project Management, Repair Management, Report Writing