Senior Accountant - RTR Integration and Operations

About the role

Lonza is hiring a Senior Accountant in San Jose, Costa Rica, to lead the integration of newly acquired businesses into its global finance operating model and Capability Centre. The role combines technical accounting expertise with transformation and integration leadership, helping build scalable, compliant and efficient finance operations.

Key responsibilities

• Lead Record-to-Report (RTR) integration activities for new acquisitions, ensuring a smooth transition into Lonza's finance operating model.
• Partner with local and global finance teams to assess accounting processes, validate financial data, align controls and support migration and stabilization.
• Manage month-end, quarter-end and year-end close, including general ledger, accruals, intercompany transactions, fixed assets and financial reporting.
• Review balance sheet reconciliations, investigate accounting issues and support internal and external audits.
• Identify opportunities for process standardization, automation and improvements, and contribute to finance transformation and system enhancements.
• Act as a subject matter expert for RTR processes, supporting knowledge transfer, onboarding and capability development.

Required profile

• Experience in Record-to-Report, General Ledger Accounting, Finance Shared Services or a similar environment, with a strong understanding of financial close and reporting.
• Knowledge of accounting standards and control frameworks, including US GAAP, IFRS, internal controls and audit requirements.
• Experience supporting finance integration, acquisitions, shared services transitions, finance transformation or large-scale process improvement.
• Strong analytical and problem-solving skills, and excellent communication and stakeholder management skills.
• Professional accounting qualification such as ACCA, ACA, CIMA, CPA, CMA or equivalent strongly preferred.

Required skills

• SAP experience strongly preferred, or similar ERP systems.
• Advanced Excel and financial data analysis.

What we offer

• An agile career and dynamic working culture.
• An inclusive and ethical workplace.
• Compensation programs that recognize high performance.
• A variety of benefits depending on role and location.