B2B Billing Manager
Publication date: March 12, 2026
Manager Billing B2B
Luminus is the number 2 producer and supplier of electricity and gas on the Belgian energy market and plays a key role in the energy transition. Within Retail B2B, we support companies and professional customers with reliable, compliant and efficient energy solutions.
As Manager Billing B2B, you are responsible for ensuring accurate, complete and timely invoicing processes for the B2B segment at national level. You lead the billing organization in line with the Retail B2B strategy and Finance procedures, while safeguarding financial performance, regulatory compliance and customer satisfaction. From operational excellence to continuous improvement, you ensure that billing processes positively impact P&L, working capital and cash flow, while delivering a seamless customer experience.
Location: Hasselt (multisite)
What you’ll do
- Leading and organizing the B2B billing team, ensuring accurate, complete and timely invoicing across all billing systems.
- Managing operational risks related to invoicing, including regulatory compliance, contractual clauses (such as pricing formulas) and sector-specific processes.
- Defining and monitoring SLAs with key stakeholders such as Finance, Credit Management, Disputes, Sales, Customer Service, IT and DGO partners.
- Overseeing reporting activities (monthly, quarterly, yearly or ad hoc) for Finance, Credit & Cash Committee and senior management.
- Ensuring proper documentation, updates and communication of billing business rules and system usage across relevant teams.
- Driving continuous improvement initiatives in processes, systems and organization, while actively contributing to transformation and cross-functional projects.
What you bring
- You hold a bachelor’s or master’s degree in economics, finance or a related field.
- You have at least five years of experience in team management, preferably within billing or dunning activities.
- You bring strong knowledge of financial processes and understand the impact of billing on P&L, working capital and cash flow.
- You are experienced in project management and feel comfortable working with management systems (experience with SAP IS-U and Salesforce is a strong asset).
- You communicate fluently in Dutch, French and English.
- You combine strong analytical and organizational skills with the ability to coach, align and develop a team in a changing environment.
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.
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