Cleanroom Operation Coordinator

cosine Research BV; Sassenheim; Hybrid; EUR 55,000 - 85,000; Full time

Benefits offered by this job

27 days of annual leave

Annual bonus

Hybrid working options

Company bicycle plan

Fitness plan

Personal development budget

1-year contract with potential long‑s‑

Job summary

cosine Research BV is seeking a Cleanroom Coordinator to lead daily cleanroom operations, safeguard contamination control, and align activities across scientist-engineers, technicians, contractors and support teams.

You will also act as the People Lead for the cleanroom team, guiding development, conducting performance reviews, and fostering a safe, structured environment while enabling ownership and effective collaboration.

Qualifications

• Experience as an engineer or technician in cleanroom environments, ideally in the semiconductor or space industry.
• Bachelor's degree (HBO) in a technical field 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.
• Fluent in English and Dutch, both written and spoken.
• Structured, proactive and comfortable combining coordination with hands-on involvement.

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

Skills

Cleanroom experience

Coordination skills

People leadership

English + Dutch proficiency

Education

Bachelor's degree in technical field

Job description

Your (space) mission

As the Cleanroom Coordinator at cosine you are the central point of contact and hands-on coordinator for all cleanroom activities. In our cleanrooms, advanced optical instruments are built and tested for ESA missions such as NewAthena and future space exploration programmes.
You safeguard cleanroom integrity by ensuring compliance with procedures, safety standards and quality requirements, while actively supporting daily operations on the floor. Working closely with scientist-engineers, you help prioritise projects and align the activities of lab technicians, contractors and support teams, bringing structure and clarity to a safe, contamination-controlled environment.
You are a visible, approachable presence in the cleanroom. You coordinate activities, support colleagues and create transparency on priorities, helping teams work effectively and take ownership of their contributions. As People Lead for the cleanroom team, you support team members in their development and well-being, acting as their first point of contact for day-to-day guidance and growth, while conducting annual performance reviews and development conversations.

Tasks & responsibilities

In this role you will:

• 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

Your profile

We are looking for candidates with the following qualifications:

• Proven experience as a 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
• Strongcommunication skills, with the ability to build trustand 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

What we offer

At cosine, we highly value our employees, and we will support your professional and personal development. We also provide our employees with:

• A unique, international working environment at the intersection of physics and engineering
• 27 days of annual leave (based on full-time employment)
• Annual bonus based on personal and company performance
• Hybrid working options, including the possibility to work partially from home
• Company bicycle- and fitness plan
• A personal development budget
• Initial one-year contract, with the aim of long-term collaboration

About cosine

Founded in 1998, cosine is a world-leading developer of space instrumentation and measurement systems, making the invisible measurable and the complex actionable.
Its expertise spans High-Energy Optics, including optics developed for ESA's future NewAthena X-ray observatory, as well as remote sensing solutions for Earth Observation and planetary science.
With over 25 years of experience and advanced cleanroom and assembly facilities across the Netherlands, Germany, and Italy, cosine brings deep scientific and engineering expertise to some of the most demanding missions in space and on Earth.
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.
cosine is committed to providing an inclusive and equal opportunities work environment where everyone can thrive. As a proud member of the Women in Aerospace community, we recognise the importance of diversity, inclusion, and equal opportunity in the workplace.