Cleanroom Coordinator

cosine; Sassenheim; Hybrid; EUR 50,000 - 70,000; Full time

Benefits offered by this job

Competitive salary with annual bonus

27 days annual leave

Hybrid working options

Company bicycle and fitness plans

Personal development budget

Job summary

cosine is seeking a Cleanroom Coordinator in Sassenheim, Netherlands. You will coordinate and support cleanroom operations, ensuring compliance with safety and quality standards. The ideal candidate will have experience in cleanroom environments, preferably in the semiconductor or space industry, and hold a technical degree or equivalent experience. Strong communication skills in English and Dutch are essential. The position offers hybrid working options, competitive salary, and benefits including 27 days of annual leave.

Qualifications

• Proven experience as an engineer or technician in cleanroom environments, ideally in the semiconductor or space industry.
• Bachelor's degree (HBO) in a technical study or compensated by sufficient relevant experience.
• Solid knowledge of contamination control and cleanroom standards.

Responsibilities

• Coordinate and support daily cleanroom operations across teams and activities.
• Ensure compliance with cleanroom entry procedures and working standards.
• Act as the primary point of contact for all cleanroom users.

Skills

Proven experience in cleanroom environments

Strong communication skills

Knowledge of contamination control

Experience with external contractors

Education

Bachelor's degree in a technical study or relevant experience

Job description

Mission

As the Cleanroom Coordinator at cosine you are the central point of contact and hands‑on coordinator for all cleanroom activities. You work closely with scientist‑engineers, lab technicians, contractors and support teams to ensure a well‑organized, 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 exploration programs.

You safeguard cleanroom integrity by ensuring compliance with 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.

Tasks & Responsibilities

• 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 workflows, workload balance and execution quality to maintain consistency
• Support and coach lab technicians in their day‑to‑day work
• Drive continuous improvement in cleanroom organization, usage and coordination

Profile

• Proven experience as an engineer or technician in cleanroom environments, ideally in the semiconductor or space industry
• Bachelor's degree (HBO) in a technical study or compensated by sufficient relevant experience
• Solid knowledge of contamination control and cleanroom standards
• Experience working with external contractors in a clear and constructive manner
• Strong communication skills, with the ability to build 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

Benefits

• 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 partly from home
• Company bicycle and fitness plans
• A personal development budget

About Cosine

cosine transforms high‑stakes measurement challenges into scalable, real‑world solutions. What sets cosine apart is its integrated approach, linking insight, science, and engineering to deliver solutions that work in the real world, enable science and make an impact for humanity. Backed by over 25 years of heritage, expertise and deep systems thinking, cosine guides partners from defining the real need to deploying reliable, precision‑built technologies that enable progress across space and planet.

What makes cosine a unique place to work is that your work goes end‑to‑end: from concept and design to building, testing, and delivering hardware that actually flies in space. You work in small, highly skilled teams where you have real ownership and impact, alongside experts in optics, physics, nanofabrication, and systems engineering.