Freelance Finance
Il y a 16 heures
Brussels, Brussels-Capital, Belgique
Cassius Data Consult
Temps plein
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About Cassius Data Consult
Cassius Data Consult is a Brussels-based consultancy specialised in Retail Media and data marketing. We are a scale-up team approximately 10 people, working with retailers, brands and technology partners across Belgium and Europe.
We are looking for an experienced independent finance and administration professional to take full ownership of the firm’s finance, administration and contract follow-up, on a part-time basis.
The assignment
This is a hands-on role with no team to manage. You run the finance and administration function yourself, from day-to-day execution to reporting, and you are accountable for the quality of your work. You organise your work independently and work closely with the management team.
What you’ll do
Finance
• Run client invoicing based on consultants’ activity: issue invoices, track payments, follow up on overdue accounts
• Process supplier and freelance consultant invoices
• Monitor cash flow and produce the monthly reporting
• Track profitability per engagement and flag deviations early
• Prepare budgets and forecasts with management
• Act as the main contact for our external accounting firm: supporting documents, expense reports, VAT, year-end closing Administration and contracts
• Follow up on contracts with clients, partners and freelance consultants: deadlines, renewals, compliance with agreed terms, and the link between contracts and invoicing (no legal background required)
• Handle HR and administrative follow-up: onboarding, contract administration, day-to-day organisation
• Keep files, procedures and documentation organised and up to date Tools and processes
• Get the most out of Odoo and our other tools, and automate whatever can be automated
• Put simple, reliable processes in place for a growing company What we’re looking for
• At least 5 years’ experience in a similar finance and administration role, ideally in an SME, a scale-up or a consultancy
• Working as an independent (or ready to), with a solid track record of autonomous assignments
• Hands-on experience with invoicing, accounts receivable and payable, cash management and reporting
• Rigour and common sense: you spot what doesn’t add up and you deal with it
• Strong organisational skills and the ability to handle several topics in parallel within limited hours
• Advanced Excel; Odoo experience is a strong plus
• Discretion: you will have access to sensitive financial and contractual information
• Fluent French and professional written English; Dutch is an asset
What we offer
• A long-term part-time assignment, around 2.5 days per week, with the schedule agreed together with the team
• Real ownership of a company’s entire finance and administration function
• A small team where decisions are quick and your improvements get implemented
• A fee in line with your experience
How to apply
Send your CV, your daily rate and a few lines on your relevant experience to caroline@cassiusdataconsult.be. Applications are reviewed on a rolling basis until 30 November 2026. Our process: a 20-minute call, then an interview with management that includes a short practical case. Desired start: as soon as possible, and no later than early 2027.
• Run client invoicing based on consultants’ activity: issue invoices, track payments, follow up on overdue accounts
• Process supplier and freelance consultant invoices
• Monitor cash flow and produce the monthly reporting
• Track profitability per engagement and flag deviations early
• Prepare budgets and forecasts with management
• Act as the main contact for our external accounting firm: supporting documents, expense reports, VAT, year-end closing Administration and contracts
• Follow up on contracts with clients, partners and freelance consultants: deadlines, renewals, compliance with agreed terms, and the link between contracts and invoicing (no legal background required)
• Handle HR and administrative follow-up: onboarding, contract administration, day-to-day organisation
• Keep files, procedures and documentation organised and up to date Tools and processes
• Get the most out of Odoo and our other tools, and automate whatever can be automated
• Put simple, reliable processes in place for a growing company What we’re looking for
• At least 5 years’ experience in a similar finance and administration role, ideally in an SME, a scale-up or a consultancy
• Working as an independent (or ready to), with a solid track record of autonomous assignments
• Hands-on experience with invoicing, accounts receivable and payable, cash management and reporting
• Rigour and common sense: you spot what doesn’t add up and you deal with it
• Strong organisational skills and the ability to handle several topics in parallel within limited hours
• Advanced Excel; Odoo experience is a strong plus
• Discretion: you will have access to sensitive financial and contractual information
• Fluent French and professional written English; Dutch is an asset
What we offer
• A long-term part-time assignment, around 2.5 days per week, with the schedule agreed together with the team
• Real ownership of a company’s entire finance and administration function
• A small team where decisions are quick and your improvements get implemented
• A fee in line with your experience
How to apply
Send your CV, your daily rate and a few lines on your relevant experience to caroline@cassiusdataconsult.be. Applications are reviewed on a rolling basis until 30 November 2026. Our process: a 20-minute call, then an interview with management that includes a short practical case. Desired start: as soon as possible, and no later than early 2027.