Supplier Performance Manager (gn) – Netherlands/Belgium

As Supplier Performance Manager for the Netherlands and Belgium markets, you are responsible for the holistic development of our marketplace, with a particular focus on assortment, supplier performance, and market potential. You manage suppliers across all trade levels, develop strategic partnerships, and ensure that assortment, quality, and performance are consistently aligned with the needs of our customers. In this role, you work closely with the local market team in the Netherlands – in particular with the Director of Sales and the Customer Success Manager. At the same time, you are part of the international Supplier Performance Management Team for the NSEE region, which is anchored within the Marketplace Performance Team. This allows you to combine local market expertise with international performance management, actively contributing to the ongoing development of our marketplace.

We are Unite.

We connect the economy for sustainable business. Our trusted e-procurement platform with its integrated marketplace enables effortless sourcing and purchasing for B2B and public sector organisations. Bringing buyers and suppliers together for mutual benefit, we’ve established a solid foundation of fair competition and trustworthy partnerships. Our platform’s scalable infrastructure supports connections, business stability and a robust supply chain. We revolutionise procurement for B2B and the public sector by adding and sharing value for markets and communities. In 2022, we became the first platform business accredited with the Fair Tax Mark, representing the global standard for responsible tax conduct.

Would you like to become a part of Unite?
Our company was founded as Mercateo in 2000 and the headquarters is located in Leipzig, Germany. We operate in 12 European countries, with over 700 employees working both in-office and remotely. In 2024, we achieved revenue of €448.7 million. For more information, visit unite.eu.

Your role

Taking ownership: You take responsibility for the holistic view of the marketplace in the Netherlands and Belgium, serve as the central point of contact for our suppliers, and support contract negotiations as well as regular performance reviews.
Keeping an eye on performance and quality: You monitor relevant KPIs such as price competitiveness, delivery reliability, and return rates, and derive targeted measures to optimize performance accordingly.
Thinking holistically: You analyze existing assortments, identify potentials and assortment gaps, and collaborate with suppliers to further develop a competitive, customer-oriented offering.
Making data-driven decisions: You work confidently with reports, key figures, and analysis tools, and present results in a target-audience-appropriate way to derive well-founded recommendations for action for internal and external stakeholders.
Thinking internationally: As part of the international Supplier Performance Management Team for the NSEE region, you contribute best practices, support regional objectives, and proactively monitor market and competitive developments.
Working in a connected way: You collaborate closely with the local market team in the Netherlands as well as internal interfaces such as Operations, Marketing, and Supplier Onboarding, ensuring efficient information management.

Your qualifications

Your expertise: You have already gained initial experience in supplier management, purchasing, or category management – ideally in B2B/B2G e-commerce or a marketplace-related environment.
Analytical thinking: You have a strong analytical mindset, are confident working with KPIs, reports, and digital tools, and purposefully use data as the basis for decisions and recommendations.
Entrepreneurial mindset: You think holistically and entrepreneurially, keep an eye on the overall market, and drive improvements independently and in a solution-oriented manner.
Acting internationally: You are comfortable operating in an international environment and connect local market requirements with regional objectives.
Convincing presence: You impress with strong communication skills and negotiation expertise when dealing with internal and external stakeholders, and present complex topics in a clear and understandable way.
Language skills: You have excellent proficiency in Dutch and English. Good German language skills are a plus.
Flexibility and mobility: You are willing to travel for supplier visits, trade fairs, and team meetings, and can ideally be present in the local office in Maastricht 1–2 days per week.

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What you can expect from us

You are where your customers are: You manage your customers independently, either remotely or on-site, and are additionally present at our location in Maastricht 1–2 days per week.
We think long-term: That’s why we are great believers in offering creative freedom – you’ll also get access to our Academy training to grow your career.
We offer workations for new possibilities: You can work abroad for up to 2 months, which is a great way to extend your time away or visit your family and friends in other countries.
We operate at eye level: Join our fair corporate culture and work with helpful colleagues and experienced management
We care about work-life balance: We offer flexible working hours and 30+ holidays so you can strike a good balance between your work and personal life.