Key Account Manager Strategic Business Accounts
Publication date: September 2, 2025
Ready to be the strategic partner behind the success of our key clients?
As a Key Account Manager for Strategic Business Accounts, you'll be the driving force within our motivated sales team. You'll forge strong relationships with both colleagues in operations, pricing, and the most energy-intensive companies. By building sustainable partnerships with large (inter)national industrial customers, you'll provide them with innovative energy products, services, and solutions. You'll actively explore the market, creating successful and profitable customer relationships for both the short and long term.
What you’ll do
- Building strong relationships, you manage and grow a portfolio of strategic B2B customers.
- Acquisition and growth strategies that deliver results are designed and driven by you.
- Diving into customer needs, you translate them to tailored energy solutions.
- Commercial targets are achieved and win-win deals negotiated by you.
- Acting as an trusted energy advisor, you guide customers toward efficiency and sustainability.
- The voice of the customer is represented by you within Luminus, as you collaborate closely with internal teams.
What you bring
- You have a master's degree (economics, management or engineering).
- You are fluent in French and have a good knowledge of Dutch and English.
- You have at least 5 to 8 years of experience in B2B sales, preferably in the energy sector.
- You have strong commercial skills, are good at building relationships and preferably have an existing network.
- You have experience in energy management, sales, energy advice or project management.
Why join us
- You’ll help shape the energy transition with innovative solutions that matter.
- You’ll work in a dynamic environment where your ideas and impact count.
- You’ll grow your career with a company that invests in your development.
- You work from home or in a Luminus hub. Nine-to-five, or not? There are options to make your schedule work for you.
What you’ll get in return?
The energy sector is one of the most rewarding industries in Belgium with a highly rewarding compensation and benefits package:
- Competitive compensation: Attractive salary with a performance-based bonus that can be optimized to your personal preferences, plus meal vouchers.
- Insurance & social benefits: Group insurance and hospitalization coverage for the entire family. Additional reimbursement for healthcare and pharmaceutical costs.
- Mobility: Full reimbursement for public transport, kilometer-based cycling reimbursement and flexible mobility choices: you can choose between a company car or mobility budget.
- Internet & communication: Home internet covered, reimbursement for a personal mobile device with a phone subscription.
- Home Office: A fully-equipped home office, including an ergonomical ICT set-up.
- Exclusive discounts: 30% off gas and electricity after six months, discounts on energy-saving services (e.g., solar panels, heat pumps) and reduced prices on top brands, amusement parks, festivals and more.
Curious about your benefits and more? Visit our jobsite.
Luminus values e.v.e.r.y individual.
Are you looking for a workplace where you can truly be yourself, where you feel respected, supported regardless of your background, identity and unique story? Then you’ve come to the right place. Diversity equity and inclusion are not empty words for us — we grant that everyone can flourish and feel valued, so let’s build it together!
What does that mean in practice?
Do you have specific needs or require adjustments during the recruitment process or once you are hired? Let’s discuss about it and we’ll do our best to find a solution. We can also discuss if you want to work at 80% or 100%.
Together we make the difference