HR Payroll & Administration Specialist

Our client is a leading international agency and a global leader in association management, congress organization, and live events. They support a diverse portfolio of clients worldwide through high-level strategic, creative, and technological solutions.

If you recognize yourself in this description, we look forward to meeting you and supporting your career path: we are at your service. At Unique, diversity and inclusion are values we prioritize. Here, you can excel in your individuality.

Are you an experienced payroll and HR administration professional who enjoys ownership, accuracy, and variety? We are looking for an HR Payroll & Administration Specialist to take the lead on payroll and HR administration across 4 Belgian entities. This is a hands-on position for someone who enjoys combining operational excellence with legal accuracy, while working in a fast-moving, multicultural, and collaborative business environment.

Main Responsibilities and Shared Tasks

Payroll Management: Managing the full payroll cycle in coordination with 3 social secretariats (collecting, encoding, and checking inputs; loading annual holiday calendars; reviewing simulations, payslips, and offboarding calculations).
Administration & Contracts: Drafting and managing employment offers, contracts, and addendums in compliance with Belgian labour law and CP200 requirements; supporting onboarding/offboarding processes.
Temporary Staff Coordination: Collaborating directly with the interim agency regarding temporary staff weekly schedules and invoices.
Labour Law & Compliance: Monitoring Belgian social legislation, reviewing and updating work regulations, supporting the development of HR policies, and providing practical compliance guidance.
Social Elections: Supporting the HR Director with the structured preparation, administrative follow-up, milestone planning, and legal compliance of social elections.
Collaboration & Improvement: Working closely daily with the HR Assistant and HR Director; acting as a trusted link between teams and contributing to the continuous improvement of HR operations.

Education & Experience: Bachelor’s or Master’s degree in HR combined with 4 to 6 years of experience in Belgian payroll and HR administration.
Legal Knowledge: Solid understanding of Belgian labour law, ideally within CP200. Proven experience working in a multi-entity and/or multi-provider environment.
Languages: Fluency in English, Dutch, and French is required.
Soft Skills: Structured, reliable, hands-on, with a strong attention to detail, a proactive mindset, and strong relationship-management skills.
Eligibility: Eligible to work in the EU.

Vanaf € 4.000 per maand

Contract Type: Full-time job (40h/week) with 12 recuperation days per year.
Flexibility: Teleworking policy in place, including 1 fixed home-working day per week, with additional days possible when business needs allow. Regular in-office presence in Brussels is required.
Salary & Benefits: Competitive salary package including meal vouchers, hospitalisation, and group insurance.
L&D Opportunities: Continuous learning and professional development via our internal institute (online & offline L&D suites).
Company Culture: A collaborative, international, and people-focused organization where HR plays a central, high-impact role.