Payroll & HR Administration Specialist

We Build More Than Infrastructure — We Build the Future

We are an international group specialized in the development, structuring, and implementation of large-scale sustainable projects that create lasting impact.

About the Role – Payroll & HR Administration Specialist (Madrid HQ)

Are you passionate about people and driven by accuracy and detail?

We are looking for a Payroll & HR Administration Specialist to join our Human Resources team at our Madrid headquarters. In this role, you will ensure the accurate and compliant execution of payroll and labor-related processes in Spain, while also supporting coordination with our international offices.

Responsibilities & Qualifications

• Manage payroll and labor administration processes in Spain and provide support to international offices.
• Ensure compliance with employment contracts, payroll regulations, income tax (IRPF), social security, and HR documentation.
• Maintain and update HR databases throughout the employee lifecycle (onboarding, contract changes, terminations).
• Collaborate with the Finance department on monthly reporting, forecasting, and labor cost analysis.
• Support employees with inquiries related to payroll and labor regulations.
• Coordinate with local HR representatives in international offices to ensure alignment and consistency.
• Contribute to the continuous improvement of HR processes and tools.
• Minimum 5 years of experience in payroll and labor relations, ideally within an international environment.
• Bachelor’s degree in Labour Relations, Human Resources, or a related field.
• Strong command of Spanish and English (French or Portuguese are a plus).
• Advanced Excel skills (pivot tables, formulas, data analysis).
• Experience with HR platforms (e.g., Workday, Factorial, or similar systems).
• Knowledge of SQL or Python is highly valued.
• Strong attention to detail and excellent organizational skills.
• Clear communicator with a collaborative mindset.
• Proactive and capable of managing priorities independently.
• Comfortable working in a fast-paced, multicultural environment.

What We Offer

• Competitive salary based on experience
• International and multicultural environment
• Inclusive culture that values diversity and teamwork
• Real opportunities for professional growth and development

If you are ready to grow within a dynamic international organization committed to excellence and sustainable impact, we would love to hear from you.