Vacancy | Payroll & HR Administration Officer | Leuven

For our office in Leuven, we are looking for highly qualified and motivated professionals like you. If you think you have what it takes to keep Septentrio firmly in Pole Position, get in touch. 

We need you for the position of 

Payroll & HR Administration Officer

The Job

As a Payroll & HR Administration Officer, you play a key role in delivering accurate and timely payroll processing and personnel administration for our international workforce. You act as a trusted partner for employees, managers, external payroll providers, and benefit partners, ensuring a smooth employee experience while maintaining compliance with local regulations.

Your Mission

Payroll Administration

• Coordinate and manage payroll processes across multiple countries and legal entities.


• Collect, validate, and process payroll data in collaboration with external payroll providers.


• Prepare payroll inputs and ensure all required information is submitted accurately and on time.


• Monitor payroll calendars, deadlines, and monthly payroll cycles.


• Manage Belgian payroll administration, including the mobility budget.


• Ensure payroll activities are executed accurately, on time, and in line with local legislation.


• Maintain accurate payroll documentation, reports, and records.

HR & Personnel Administration

• Maintain and update employee data in SAP and other HR systems.


• Manage personnel administration throughout the employee lifecycle, including onboarding, contract amendments, employment changes, leave administration, and offboarding.


• Coordinate employee benefits and insurance plans, including enrolment, changes, and annual renewals.

Employee Support & Stakeholder Management

• Serve as the first point of contact for payroll and HR administration questions.


• Provide professional and accurate support to employees and managers.


• Build effective relationships with external payroll providers, insurance partners, and internal stakeholders.


• Build strong relationships with your Hexagon counterparts and collaborate to align payroll and HR administration processes where appropriate.

Continuous Improvement & Compliance

• Monitor and resolve payroll and HR administration issues proactively.


• Stay up to date with changes in payroll, employment, and social legislation.


• Support process improvements and contribute to the optimization of payroll, HR administration, and HR systems.


• Support HR projects related to payroll, digitalization, and process optimization.


• Promote best practices in data quality, compliance, and operational efficiency.

Your Qualifications

Experience & Background

• Minimum 5 years of experience in Belgian payroll administration.


• Strong knowledge of Belgian social legislation.


• Experience working with external payroll providers.


• Experience with international payroll is a strong plus.


• Experience with SAP or other HRIS/payroll systems is an asset.

Skills & Competencies

• High level of accuracy and attention to detail.


• Strong sense of ownership and responsibility.


• Proactive, service-oriented mindset.


• Excellent organizational and planning skills, with the ability to manage multiple deadlines.


• Good communication skills and the ability to explain complex topics clearly.


• Comfortable working in a fast-paced, international environment.


• Fluent in English; Dutch is an asset.

Our Offer

In exchange for your talent, we offer a very competitive compensation package in a top-notch high-tech, international working environment. At Septentrio you'll have room to grow, both personally and professionally. Our on-boarding plan is legendary, our homework policy family-friendly. Get in touch and help us shoot for the moon, the stars and beyond.