(m/f/d) HR Interim - Payroll and Benefits Specialist 80-100%

Our client is an international firm in greater Lausanne.

Description

Payroll & HR Administration

• Validate and reconcile complex payroll data, including new hires, terminations, bonuses, variable pay, deductions, absences, shadow payroll, LTI/RSUs, and benefits.
• Ensure accurate social insurance declarations, source tax filings, and statutory contributions in compliance with Swiss regulations.
• Prepare payroll documentation and reconciliations to support internal and external audits.
• Respond to employee inquiries regarding pay slips, tax documents, social insurance, taxation, annual calendars, counters, and hour balances.
• Organize or contribute to employee information sessions.
• Maintain and update employee records in HRIS and personnel files, ensuring GDPR and Swiss labor law compliance.
• Administer employee benefits such as pensions, family allowances, and sickness/accident claims.
• Provide data and analysis to support annual salary and bonus review processes.

Payroll & HR Implementation Projects

• Assist in migrating payroll services and transitioning HR administration processes, ensuring clear workflows and accountabilities.
• Prepare, test, and validate data to guarantee payroll accuracy and compliance with Swiss legislation.
• Support the local rollout of the HR system, ensuring Swiss payroll and HR requirements are integrated.
• Collaborate with the C&B Manager, global HRIS team, Finance, and ADP to align processes.
• Document payroll and HR administration procedures.
• Contribute to ad-hoc Compensation & Benefits projects, including benefits management, job leveling, and reporting.

Profile

• At least 5 years of experience in Swiss payroll operations, ideally including system or provider transitions and payroll implementation projects.
• Experience in international firms including expertise in international payroll, including management of equities and long-term incentives (LTI).
• Proven experience in HRIS and payroll transformation or implementation projects within global teams.
• Strong knowledge of Swiss social security, taxation, and labor law.
• Solid understanding of HR administration processes and their integration with payroll.
• Advanced Excel skills, including data management and report generation.
• Highly organized and detail-oriented, with a strong sense of rigor.
• Ability to work independently and maintain strict confidentiality.
• Structured, reliable, and capable of managing multiple priorities simultaneously.
• Excellent communication skills in English; French and other European languages are an asset.

Job Offer

• Take on a key operational role in an ambitious payroll and HR transformation project.
• Work closely with the Compensation & Benefits Manager and collaborate with global HR teams.
• Benefit from flexible working arrangements with an 80-100% workload.
• Be part of an international, dynamic, and supportive environment.