Project Manager, Sassenheim

Your (space) mission You turn space ambitions into reliable execution. Both on Earth and beyond.

Overview As the Project Manager at Cosine, you manage the projects that bring cutting‑edge space instruments from design to launch. Working in the heart of our Remote Sensing business, you ensure that complex space missions are delivered on time, within budget, and to the highest standards of quality expected in the space industry. The project budgets you manage typically range from €5 million to €20 million.

You are the stabilising force in a highly innovative environment. While engineers and scientists push the boundaries of optical and sensing technology for satellites, you keep the programme grounded in reality: clear planning, controlled costs, aligned stakeholders, and predictable delivery. Your work directly contributes to instruments that operate in orbit and generate insights about our planet and the universe.

Tasks&Responsibilities

Own end‑to‑end project execution for space instrument development programmes

Drive integrated planning across schedule, budget and resources in multidisciplinary teams

Align and coordinate stakeholders, including institutional customers, partners and suppliers

Track progress through all project phases, from design to AIT and launch preparation

Proactively identify risks and ensure structured mitigation in line with space project standards

Your profile

Several years of experience as a Project Manager in space, aerospace or other high‑tech engineering environments

Proven ability to manage complex projects with strict requirements on time, cost and quality

Familiarity with space project lifecycles (system engineering approach and mindset)

Strong stakeholder‑management skills in an international, technical environment

Structured, calm and decisive under pressure, with a strong sense of ownership

Experience with institutional or governmental customers is a strong advantage

Excellent English communication skills; Dutch is a plus

What We Offer

A unique, international working environment at the intersection of physics and engineering

The opportunity to deliver end‑to‑end solutions in autonomous project teams, in close collaboration with customers

A salary between€3 800 and €5 400 gross per month, along 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

About Cosine Cosine transforms high‑stake 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. Your work goes end‑to‑end: from concept and design to building, testing and delivering hardware that actuallyflies 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.

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