Finance & Office Assistant

Finance & Office Assistant

KOMIS

Brussels, Belgium

BACKGROUND INFORMATION:

Established in 2008, KOMIS has grown steadily in the management consulting sector, specialising in monitoring and evaluation (M&E) for international development. We work with a range of clients, including international organisations, governments, and civil society actors, to monitor and evaluate international cooperation projects that address complex social and economic challenges.

At KOMIS, we are a team of committed individuals who take pride in delivering high-quality work within set timelines. We share a strong sense of purpose and a collaborative mindset, alongside a drive for excellence and a commitment to meaningful impact.

JOB OVERVIEW:

This Brussels-based role is central to keeping our financial records accurate, supporting budget follow-up, and coordinating smoothly with colleagues and external partners. You will also support the financial management of KOMIS’s international cooperation projects for a wide range of clients, working closely with project teams and gaining exposure to international assignments and reporting requirements.

The role is hands-on and operational, with increased activity during month-end and reporting periods. The Assistant will report directly to the Finance Manager and work closely with project teams.

This is a great opportunity to build hands-on experience in project finance within an international development context.

KEY RESPONSIBILITIES:

Financial Administration

• Process supplier invoices, expense claims, and timesheets in line with internal procedures;
• Support preparation of payments and maintain accurate financial records;
• Assist in monthly closing preparation and coordination with external accountants;
• Ensure proper archiving of financial documents, for audit purposes.

Project Financial Support

• Provide administrative support to the Finance Manager and Project Managers in tracking project budgets and expenditures;
• Assist in the collection and organisation of documents for financial reporting;
• Provide logistical support;
• Support the verification of expense eligibility in line with client and internal rules.

Office and Administrative Support

• Monitor office supplies and coordinate with service providers (IT, maintenance, cleaning);
• Support procurement follow-up and contract filing;
• Assist with logistical arrangements for meetings and small office events;
• Maintain organised digital and physical filing systems.

QUALIFICATIONS AND SKILLS:

• Bachelor’s degree in accounting, finance, administration, or related field;
• 1-3 years of experience in finance or administrative support preferred;
• Good knowledge of MS Office, particularly Excel;
• Strong organisational skills and attention to detail;
• Ability to manage multiple tasks and respect deadlines;
• Professional working proficiency in English and French;
• Knowledge of Spanish is a strong asset;
• Familiarity with accounting software is an asset;
• Valid working permit for Belgium.

WHY JOIN US:

Join KOMIS as a Finance and Office Assistant and contribute to the efficient functioning of our operations at both organisational and projects’ level.

This position is an excellent opportunity to build hands-on experience in finance, office administration, and project support within an international and dynamic consulting environment.

We offer a highly rewarding professional experience, including:

• A supportive, innovative working environment where initiative and new ideas are encouraged;
• A centrally located office in the heart of Brussels, with options for partial remote working;
• Flexible working hours to support a healthy work life balance;
• The opportunity to contribute to projects delivered across numerous countries worldwide;
• A fixed-term contract (maternity leave cover), with strong prospects of extension.

We value long-term collaboration and are keen to retain colleagues who perform well and are a strong fit with the team.

HOW TO APPLY:

Please write a short e-mail explaining why you wish to be considered for this position and submit a full CV to Christina TRIANTAFYLIDOU at ctr@komis.be with ‘Finance & Office Assistant – first name surname’ in the email title. Please also state whether you have the right to work in Belgium.

The deadline for applications is 16^th of March 2026.