Accountant Specialist

Freelancer Opportunity

Job title: Accountant Specialist

Job location: Brussels, Belgium

Job duration: 2026-08-15 to 2027-01-31

Job weekly hours: 40 hrs./week

Job salary range: 65 to 70 euros an hour

Job description:

Shared Service Center – Temporary FIN Accountant consultant (P2P/O2C/R2R)

Main working language is Dutch (NL); good knowledge of English (ENG) is required, and French (FR) is a plus (not mandatory)

Team: 8 persons

Location: Evere (Brussels), 2 days/week

• Experience with Office, Excel, Microsoft Dynamics & Business Central is a strong plus

• Very hands-on, keen to help others. Must have: (BGAAP)

Seniority: medior profile, someone very communicative, well organized and independent.

Purpose:

The Finance Shared Service Center (SSC) located within Proximus NXT IT provides financial services to the affiliates of Proximus mainly active in the ICT business.

Responsibilities:

• Create and update vendor and customer master data

• Process vendor invoices and credit notes, and prepare/execute payments

• Manage customer invoicing, cash application, and dunning processes

• Perform customer and vendor account reconciliations, proactively resolving discrepancies

• Monitor open items, flag risks, and communicate issues clearly

• Handle daily tasks such as bank statement bookings, bank position reporting, and executing payment runs

• Create outbound invoices for multiple affiliates

• Improve and maintain documentation of covered processes

• Support month-end closing activities related to subledger accounts

• Collaborate with internal and external stakeholders while ensuring professional communication.

Requirements and experience:

• Strong administrative skills and attention to detail

• Analytical mindset with focus on correctness

• Ability to work both independently and as part of a team

• A solid basis in accounting principles is required to perform the daily operational tasks correctly (BGAAP)

• Booking of invoicing, bank statements, operational accounting tasks to insure the continuity of the business

• Documentation of the process will be critically reviewed by the newcomer

• Strong communication skills with the ability to explain financial information clearly.

Apply now and start your journey with Team Possible! We want to get to know you.

After your application, we will verify your profile and get back to you within 3

working days.

If you’re successful, you can expect the following steps:

An initial conversation with our recruiter - Swati Kumari

Interview with the Hiring Manager and the team.

Final decision

About Proximus

We are Team Possible turning tech into opportunities.

We are driven by four core pillars: "I care," "I make a difference," "I radically simplify," and "I embrace the future". This means you'll join a team that genuinely cares for customers and colleagues, is empowered to make a real impact, strives to radically simplify complex challenges, and is always looking ahead to embrace the future of technology. We believe in an inclusive and safe environment where everyone can thrive, offering extensive career development resources, including access to over 5,000 training modules and a minimum of 5 days of training per year, to help you continuously learn, grow, and tackle bold challenges with us.