As a Back Office Officer, you play a pivotal role at the heart of Luminus’ Optimisation department, ensuring the accuracy, control and smooth execution of financial and operational activities across power and gas markets. You take ownership of complex invoicing, settlement and reporting processes while contributing to data quality, regulatory compliance and continuous improvement.
What you’ll do
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You validate and control incoming invoices for Nuclear, Power and Gas activities, ensuring accuracy of volumes, prices and contract terms.
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You execute and support trading settlement processes, managing end-to-end cycles, resolving discrepancies and ensuring business continuity.
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You oversee Green Certificates administration, monitoring stocks, executing transactions and aligning regulator, internal and SAP data.
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You contribute to financial monitoring, including cash flow forecasting, bank guarantee follow-ups and payment tracking.
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You prepare internal and regulatory reports, ensuring compliance with market rules and supporting financial closing activities.
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You improve data quality and processes by reconciling multiple sources, supporting projects and driving automation and efficiency initiatives.
What you bring
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You have strong analytical and numerical skills with a keen eye for detail and quality.
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You understand complex financial and operational processes and enjoy solving discrepancies.
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You are structured, organized and proactive, with a continuous improvement mindset.
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You communicate effectively and manage stakeholders with confidence and professionalism.
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You have strong Excel skills; experience with ERP systems, BI tools or programming (SQL, VBA, Python) is a plus.
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You hold a Master’s degree in Economics, Finance or similar, and have relevant experience in financial, operational or reporting roles within a structured environment.
Benefits of working at Luminus
The energy sector is one of the most rewarding industries in Belgium with a highly rewarding compensation and benefits package:
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Competitive compensation: Attractive salary with a performance-based bonus that can be optimized to your personal preferences, plus meal vouchers.
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Insurance & social benefits: Group insurance and hospitalization coverage for the entire family. Additional reimbursement for healthcare and pharmaceutical costs.
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Mobility: Full reimbursement for public transport, kilometer-based cycling reimbursement and flexible mobility choices.
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Internet & communication: Home internet covered, reimbursement for a personal mobile device with a phone subscription.
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Home Office: A fully-equipped home office, including an ergonomical ICT set-up.
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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.
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You work in a strategic, fast-evolving energy environment at the crossroads of trading, finance and operations.
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You grow your expertise in a collaborative team that values knowledge sharing, autonomy and continuous learning.
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You work and connect with your colleagues at a Luminus office or from home. Need some flexibility? Your manager is open to discuss what works.
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
