Open navigation
Search
Search

Select your region

Key contact

Job Description

CMS is looking for an Accounting Assistant to strengthen its finance & accounting team in Brussels.

Profile:

  • Ideally, you have some experience in a similar accounting role, however, don’t hesitate to apply if this would be your first job!
  • You hold a Belgian higher-education degree in Accounting
  • You have an excellent command of Excel and are comfortable working with accounting software such as Winbooks
  • You are a French speaker with a good command of English and basic knowledge of Dutch
  • You have strong project management skills and can take full ownership of processes from start to finish
  • You are hands-on, proactive and able to perform well under pressure in a fast-paced environment
  • You work with great accuracy and attention to detail
  • You are enthusiastic, a true team-player and possess excellent communication skills
  • You have a strong sense of service

Main responsibilities:

As Accounting Assistant, you will play a key role in supporting the team with tasks such as:

  • Day-to-day management: entering supplier invoices, handling emails, tracking invoices receivable, performing various data entry and verification tasks, and assisting with the preparation of customer invoices.
  • Annual management: compiling the customer list and preparing Statbel reports.
  • Monthly and annual closings: recording closing entries and preparing monthly filings (VAT – INTRA – ONEGATE).
  • Reopening: reopening the books, preparing the budget for year A+1, and allocating expenses.

What we offer:

  • A permanent contract of 39h/week
  • 26 days of paid annual leave
  • A dynamic team composed of 1 accountant, 1 Account Assistant and 1 Invoicing Assistant 
  • A diverse and inclusive work environment and team
  • An attractive salary between 3.000€ and 5.000€ gross depending on the experience
  • Luncheon vouchers: 10€/day
  • 250€ in eco-vouchers per year
  • Hospitalisation and group (5%) insurance without personal contribution
  • Bonus plan (CCT 90)
  • Public transport coverage or reimbursement of home-workplace travel costs
  • Work-life balance: homeworking 2 days per week
  • Local team management
  • Long-term commitment to our employees
  • Close collaboration with other departments and on an international level with other CMS countries
  • Opportunities for career progression based on your aspirations and potential 
  • Possibility of individual Dutch language classes 
  • Local and international CMS events, sporting events and conferences
  • Sport activities
  • Wellbeing activities and conferences
  • Many internal events

Recruitment process:

Our selection process is designed to be transparent, efficient, and friendly. It consists of the following steps:

  1. CV screening:
    Initial review of applications to assess alignment with the requirements of the role.
     
  2. Phone interview (language check):
    Short call with HR to evaluate your English and Dutch language skills.
     
  3. First interview on-site:
    Meeting with our Accountant and Operations Manager to discuss your experience, motivation, and fit with the team.
     
  4. Technical accounting test & team introduction:
    On-site technical test to assess your accounting skills, followed by a brief meeting with two future colleagues: the Account Assistant and the Invoicing Assistant.

About CMS:

CMS is a founding member of the Legal Diversity and Inclusion Alliance (https://legaldiversityalliance.be/). Selection for recruitment is irrespective of gender, race or ethnicity, age, religion, sex, marital status, sexual orientation, gender identity or disability.

CMS Belgium has been granted a silver medal by Ecovadis, the world's most trusted business sustainability rating, recognizing our commitment to sustainability and business ethics.

Read more about working for CMS here.

Application deadline: 31 May 2026

  Apply now
Back to top Back to top
Warning: Fraudulent emails and messages