AR Accountant

AR Accountant

Publication date: May 29, 2026

Brussels

Contract open-end

As an AR Accountant, you reinforce the Accounts Receivable team within Finance and help Luminus become the number one in customer focus in the energy sector, while supporting maximum internal efficiency.

You manage activities related to Accounts Receivable and Deal Confirmation & Validation processes. Reporting to the AR Manager, you help ensure the smooth, accurate and timely execution of daily accounting activities, monthly and yearly closings, customer-related follow-up and trading transaction confirmations.

 

What you’ll do

  • You execute daily accounting entries linked to Accounts Receivable activities, including CODA file uploads, bank statement fall-out handling, payment processing, payment runs via Isabel, exchange rate updates in SAP, outgoing invoice registration and dunning in SAP FI.
  • You handle questions related to outgoing invoices from internal and external customers, follow up the Receivables and Manual Invoicing mailboxes and help ensure accurate customer master data in SAP FI.
  • You contribute to monthly and yearly accounting closings, including SAP FICA/FICO reconciliations, Budget Meter and Staff discount invoicing, foreign currency reconciliations and follow-up of AR-related general ledger accounts.
  • You execute monthly and daily tasks linked to the factoring process and contribute to reporting, dashboards, work instructions and procedures related to Accounts Receivable activities.
  • You participate in projects impacting AR activities, such as SAP S/4HANA, and perform testing for new SAP AR functionalities, including ISU testing.
  • You support Deal Confirmation & Validation activities by controlling incoming deals and contract modellings in Aligne, managing confirmations through EDFT Automatic Matching and/or Efetnet, issuing sales confirmations and ensuring compliance with Luminus’ DoA and Code of Conduct for trading activities.

 

What you bring

  • You hold a Bachelor’s degree in Accounting and/or a diploma in Economics or Finance.
  • You have at least 2 years of experience in a similar role, which is considered a strong plus.
  • You have knowledge of MS Office, SAP FI/CO, ISU and other IT tools such as Power BI; experience with these tools is a plus.
  • You are customer-oriented and communicate clearly with both internal and external customers.
  • You are a collaborative team player who is solution-driven and able to work accurately within deadlines.
  • You are fluent in English and in French or Dutch; a basic knowledge of the other national language is a plus.

 

Why join us

  • You join a Finance team that plays an important role in Luminus’ ambition to combine strong customer focus with maximum internal efficiency.
  • You work in a role with a broad scope, combining Accounts Receivable, SAP-related activities, factoring, reporting, closing activities and deal confirmation processes.
  • You collaborate with internal and external stakeholders and contribute to accurate, reliable and compliant financial processes in a fast-moving energy environment.
  • 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.

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