Cleanroom Coordinator

As the Cleanroom Coordinator at cosine you are the central point of contact and hands-on coordinator of all cleanroom activities. You work closely with scientist-engineers, lab technicians, contractors and supporting teams to ensure a well-structured, safe and contamination-controlled environment.

At cosine, our cleanrooms are where precision meets space. Here, we build and test advanced optical instruments for ESA missions such as NewAthena and future space explorations.

You safeguard cleanroom integrity by ensuring adherence to procedures, safety standards and quality requirements, while actively supporting daily operations on the floor. You bring structure, alignment and clarity, enabling teams to focus on delivering high-end space hardware.

You are present, approachable and proactive. You coordinate, support and guide rather than delegate, and help create a collaborative environment where people take ownership and perform at their best.

• Coordinate and support daily cleanroom operations across teams and activities
• Ensure staff and contractors comply with cleanroom entry procedures and working standards
• Act as the primary point of contact for all cleanroom users (internal and external)
• Safeguard compliance with project requirements, internal procedures, and contamination control standards
• Monitor workflow, workload balance and execution quality to maintain consistency
• Support and coach lab technicians in their day-to-day work
• Drive continuous improvement in cleanroom organisation, usage and coordination

• Proven experience in cleanroom environments, ideally in the semiconductor or space industry
• Strong technical background (HBO level or equivalent hands-on engineering or technician experience)
• Solid knowledge of contamination control and cleanroom standards
• Experience working with external contractors in a clear and constructive way
• Strong communicator who builds trust and alignment across diverse teams and cultures
• Fluent in English and Dutch, both written and spoken
• Structured, proactive and comfortable combining coordination with hands-on involvement

• A unique, international working environment at the intersection of physics and engineering
• A competitive salary with an annual bonus based on individual and company performance
• 27 days of annual leave (based on full-time employment)
• Hybrid working options, including the possibility to work partially from home
• Company bicycle and fitness plans
• A personal development budget