Here’s How You’ll Make an Impact…

Payroll & Compensation Management

• Own the end-to-end payroll cycle: data collection, controls, validation, processing, and payment.

• Ensure regulatory compliance (labor/tax & social security): on-time DSN and social declarations, accurate withholding and contributions.

• Maintain payroll master data: contracts, salary changes, variable pay, benefits, and leave balances.

• Coordinate payroll for onboarding/offboarding: set-up, prorations, provisioning, and accurate final settlements (solde de tout compte).

• Issue accurate payslips and calculate end-of-contract items (indemnities, unused leave/RTT, etc.).

• Administer benefits platforms (mutuelle/prévoyance, meal vouchers, mobility) and ensure interfaces with payroll.

• Partner with HR & Finance and external stakeholders (auditors, legal counsel) to secure smooth operations.

• Run recurring reconciliations and audits; investigate variances and resolve discrepancies promptly.

• Improve processes via automation and standardization (checklists, templates);

• Produce statutory and management reporting: payroll costs, headcount, compensation trends; support budgeting and audits.

• Monitor occupational health & sick leave flows (visites médicales, arrêts) to ensure proper payslip treatment and declarations (CPAM/organismes).

• Build and maintain training→payroll reporting pipelines (HRIS → payroll): reconciliation, and audit-ready compliance packs.

• Keep HR registers & dashboards current: registre du personnel, DUERP, and monthly KPI packs.

Financial Administration & Processes Management

• Oversee the processing and validation of supplier and client invoices to ensure accuracy and timely payments.

• Manage accounts payable and accounts receivable, including reconciliation of accounts and follow-up on outstanding payments.

• Administer employee expense reports, verify compliance with company policies, and ensure timely reimbursement.

• Coordinate with external accountants and finance teams to support monthly and annual financial closings.

• Coordinate with external accountants to prepare and submit VAT declarations and other mandatory financial reports in compliance with legal requirements.

• Maintain and improve financial administrative processes, identifying opportunities for automation and efficiency gains.

• Monitor financial transactions to detect discrepancies or irregularities and ensure proper documentation.

• Support budget monitoring and reporting activities by providing accurate financial data and insights.

• Ensure that financial and administrative systems, such as PennyLane, Payfit and TravelPerk, are properly maintained and leveraged for accurate book-keeping and reporting.

• Manage vendor relationships related to financial services and oversee contract compliance.

We’re Eager to Meet You If…

• You are passionate about combining precision, compliance, and efficiency in payroll and financial operations to support a purpose-driven company.

• You have at least 3 years of experience in payroll, financial administration, or related roles, ideally with proven experience in a fast-growing international environment.

• You are proficient with payroll, finance and related tools (such as PayFit, Pennylane, TravelPerk or equivalent) and feel comfortable learning and implementing new digital solutions.

• You are detail-oriented, rigorous, and proactive: you spot discrepancies before they become problems and enjoy creating smarter processes.

• You thrive in a dynamic, collaborative, and multicultural team, where open communication and feedback are part of daily life.

• You combine autonomy with a strong sense of responsibility, ensuring that sensitive data is managed with discretion and accuracy.

• You embody a “can-do” mindset — willing to roll up your sleeves to find solutions, improve existing processes, and contribute to WhiteLab’s excellence-driven culture.

• You balance rigour with empathy: you’re attentive to people, while ensuring compliance with internal rules, fiscal and labor laws.

• You communicate fluently in English and are comfortable preparing reports and engaging with a diverse and multicultural team of collaborators and external partners. Additional languages are a plus.

• You’re motivated by WhiteLab’s purpose: leveraging AI and innovation to accelerate the discovery and development of life-saving therapies.

You will first have a video interview with the Head of People and Culture, followed by a second video interview with our CFO and Payroll Consultant. Subsequently, you will be invited for an on-site, face-to-face interview to meet the rest of the team and complete a PI test and reference check.