Billing Officer

Billing Officer

Based in the center of Brussels, IRISnet is a young and dynamic telecom and services provider. Resulting from a private-public partnership (PPP) between the Brussels Region and Orange, IRISnet develops, installs and manages many regional projects for all its customers among whom: Brussels’s municipalities, hospitals as well as police and emergency services, Actiris, STIB, Bruxelles formation, Bruxelles environnement...

As main asset, IRISnet owns more than 400km optical cables on the Region and has one of the biggest fiber optic footprints on this area. Connecting thousands of sites through different technologies, IRISnet offers many different services to its customers like connectivity (IP VPN), dedicated VoIP solutions, video protection & video conference services, and so on.

Due to increasing needs for digital services in the Region, IRISnet is growing in terms of turnover, product portfolio and staff, all whilst keeping a rather small size (around 30 employees), which is an asset for fast and agile developments. The combination of its own capabilities and the strong partnerships with the best-in-class actors of the ICT market allow IRISnet to deliver end-to-end, highly competitive and state-of-the-art solutions to its customers.

IRISnet is the ideal environment for those who are into technology and driven to achieve. The company’s core values are built around trust/ownership, client-centricity and partnerships.

IRISnet is led by CEO Thierry Joachim, and their office is in the center of Brussels. For more information, please visit


As Billing Officer, your role is to undertake the following tasks:

  • Involves coding, updating, follow-up invoices and providing quality insurance, quality control and customer service as well as ensuring that deadlines are met, and tasks are completed.
  • Providing and performing controls over the exhaustivity and accuracy of the invoicing as well as performing controls and reporting anomalies over cash flow, products margin, and cost prices, etc.


Principal accountabilities for this function are:

  • Oversee, create, review, and submit daily monthly sales invoices
  • Oversee monthly electronic invoice submission
  • Interpret and clarify policies and procedures related to invoicing
  • Answer questions and handle complaints from customers regarding invoices
  • Issuing voice invoices (minutes of calls,…) which implies specific treatment of csv files and quality controls on invoicing data • Preparation of payments and verifying cash flow on a weekly basis
  • Check the data inputs in the accounting system to ensure accuracy of final invoices
  • Maintain and clean the recurring invoicing database
  • Perform controls over recurring
  • Review, analyze, and resolve errors in invoices and other materials to ensure compliance with all necessary regulations
  • Answer questions and handle complaints from customers regarding invoices
  • Familiarization with the product database and perform controls over their use
  • Implementation and perform controls over the exhaustivity and accuracy of the invoicing (monthly reconciliations with operational databases/quantities, data consistency, etc.)
  • Perform margin and costs prices analyzes on specific products/flows
  • Back-up function:
    • code purchase invoices and bank statements
    • update accounts payable and issue
    • send payment reminders to customers


The ideal candidate has the following profile:

  • First experience in accounting position
  • Excellent numerical and analytical skills
  • Excellent knowledge of Excel
  • Strong organizational and work prioritization skills and attention to detail
  • Problem solving, proactivity & rigor are part of your DNA
  • Learning agility; ability to quickly gain knowledge of organizational operations, procedures, and staff
  • Strong ethics, with an ability to manage confidential data
  • Process oriented, adaptable, reliable, flexible, and approachable.
  • Strong sense of customer delight
  • Relevant experience in ERP is a plus
  • Excellent verbal and written communication skills
  • Fluent in French & Dutch – English is an asset

The successful candidate should be:

  • Autonomous, self-motivated, engaged and organized, ready to take ownership, set priorities, work towards deliverables and achieve results.
  • Energetic, enthusiast and curious, takes initiatives, identifies opportunities, proposes out-of-the-box solutions and is flexible in quickly adapting to change
  • Team player, collaborates well with people from various backgrounds and develops solid relationships.


For the right candidate this position offers attractive financial conditions as well as the opportunity to grow and develop within an organization that is ideal for those who are into technology and driven to achieve. The Billing Officer reports to the Finance Manager and will work from the company’s Brussels office.

Are you the right candidate for this function ?

Apply to this position by sending your CV to:

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