Senior Accountant - Accounts Payable (m/f/d) 100% in Bussigny

Mission

Decathlon Switzerland is growing fast (+50 stores, ~500M€ GMV end of 2026).

To support this growth and the transformation of our finance and procurement ERP, we are seeking a dynamic professional to join our team as an Senior Accounts Payable & AP Leader, based in our Geneva or Lausanne offices.

Directly reporting to the accounting leader, you will play a strategic and operational role: leading and structuring the Accounts Payable team while ensuring seamless daily operations and driving process transformations.

• Your Mission & Responsibilities
• Team Leadership & Structuring
• Structure O2P (Order to Pay) Processes: Build an efficient organization by defining responsibilities and optimizing workflows capable of supporting strong business growth.
• Lead & Mentor Team: Support, develop, and train local teammates across the country.
• Performance Management: Ensure high performance across key KPIs (DPO, invoice processing times, automation rates) and provide regular reporting to management.
• Operational Excellence & Internal Control
• End-to-End AP & Closing

Oversight: Oversee the complete Accounts Payable cycle, serving as the escalation point for complex issues (invoice blocks, holds, ageing) and ensuring monthly/yearly closing excellence (accruals, prepayments, manual entries).

• Supplier Relations & Communication: Maintain strong supplier relationships through clear, smooth, and professional communication.
• Process Harmonization & Performance

Recovery: Structure, document, and deploy a standardized Procurement process while diagnosing operational issues and leading targeted recovery plans to boost reliability across the value chain.

• Internal Control & Governance: Establish a robust internal control framework (delegation of authority matrix, segregation of duties, purchase order validation) to mitigate risks and billing errors.
• Process Transformation & ERP Migration
• Transformation Leader: Act as a key project stakeholder in the migration and transformation of our ERP and Purchase-to-Pay (P2P) systems.
• Change Management: Lead change management initiatives for the finance team and provide operational guidelines/training to internal non-finance stakeholders.
• Standards & Compliance: Ensure full compliance with Swiss accounting standards, local regulations, and Group governance guidelines throughout system changes.
• Data Quality Governance: Guarantee data quality for purchases, including vendor data, invoicing, and reporting.
• Profil
• Professional Background
• 5 to 7+ years of experience in Accounts Payable and General Accounting, including at least 2 years in a leadership, team lead, or senior coordination role.
• Systems, ERP & Reporting Tools
• Strong working knowledge of core accounting systems, such as Oracle.
• Hands-on experience with expense and P2P platforms, alongside group reporting and BI tools.
• Advanced proficiency in Excel and Google Sheets. Experience leading or participating in ERP migrations and system implementations is a significant asset.
• Languages
• Fluency in French and English is mandatory. Working proficiency in German is a strong advantage for seamless communication with our Swiss-German stores and business partners.
• Leadership & Organizational Drive
• Proven ability to build and structure processes from scratch, mentor and upskill junior team members and champion organizational change.
• Analytical Acumen
• Strong affinity for data and numbers, a continuous improvement mindset, and a structured approach to solving complex problems.
• Sport Enthusiast
• A genuine passion for sports, embodying the active, dynamic and team-oriented culture of the company.
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