Commodity Buyer - Aerospace
Leiden
Full time (40 hours per week) - 1 year contract
Medior-Senior

About this job
We are currently looking for a Commodity Buyer with strong knowledge or affinity with the Aerospace industry, to join the team in Leiden.
As a Commodity Buyer, you will take ownership of the sourcing completeness, supplier relationship management, and contract negotiations within your assigned commodity scope. You will play a key role in optimizing the total cost of ownership while ensuring supply chain resilience and procurement excellence.
This role will be very hands-on and involving connection with several suppliers for several technical components.
Job details
Commodity Buyer

Main responsibilities
Drive strategic and operational procurement activities by defining, developing, and executing effective commodity strategies. You’ll lead the supplier account team and collaborate cross-functionally to deliver value, mitigate risk, and build long-term supplier partnerships.
- Lead the procurement process from strategy development to contract implementation within defined project and company parameters.
- Manage the Supplier Account Team, coordinating cross-functional input and execution.
- Define and implement the commodity strategy, aligning it with business goals and market developments.
- Identify and drive synergy and cost-saving opportunities across Business Units.
- Manage the tendering and supplier selection process, including legal and contractual negotiations.
- Oversee contract management, including spot buys, amendments, waivers, and claims with legal support.
- Conduct supplier evaluations, maintain supplier performance data, and develop strategic suppliers through actionable improvement plans.
- Own the supplier approval process within your commodity.
- Advise the Product Family Manager based on market analysis, benchmarking, and supplier performance insights.
- Provide input into procurement policies and procedures.
- Stay ahead of market trends and take proactive actions in line with developments.
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Define and manage strategic stock levels to secure supply chain continuity
Requirements
- Bachelor's degree (HBO) in a relevant field.
- Strong analytical, negotiation, and planning capabilities.
- A proactive and customer-oriented mindset.
- High level of integrity, result orientation, and networking ability.
- Solid expertise in procurement best practices and commodity management.
Please note that if you do not hear back from us within 10 days of your application, you may assume that we have selected another candidate we would like to interview for this position. We do our best to get back to you individually, however, due to a high volume of responses, it can be that we have not been able to reject your application in person.
Are you enthusiastic about becoming our new Commodity Buyer?
Apply via our application form, or send your CV and motivational letter
directly to recruitment@stcorp.nl.
Our story
At S[&]T we contribute to a safer life on earth by translating space data into valuable and actionable insights. We oversee data from instruments to application, and apply our expertise within our software frameworks, information products and consultancy.
Our society relies on space and scientific instruments for climate change monitoring, navigation, defence and national security, and other crucial services we all use in our daily lives. These instruments produce an enormous quantity of complex data, and our goal is to unlock its value.
We have more than 20 years of experience working on instrument calibration, the creation of data quality monitoring tools, the development of real-time data processing frameworks, and the development of application-specific algorithms. With this, we help organisations, governments and industries to strengthen their information position and thereby improve their decision making. We focus on the following domains: Space & Science, Defence & Security, Environment & Sustainability, and High-Tech Consulting.
Privacy notice
In order to apply for this vacancy you must submit your personal information to S[&]T. We will collect, use, and process your personal information as mentioned in our Privacy Policy. Our policy and processing of your personal information are compliant with the GDPR.
How to apply
Would you like to hear more? Send your CV and
motivational letter to
recruitment@stcorp.nl
or
apply directly
through our website.
Kindly note that acquisition from third parties (e.g.
agencies) based on this vacancy is not welcome.