Deloitte Extended Services is characterized by a culture strongly focused on collaboration, placing people, trust and talent development at the core of its operations. A close management approach encourages guidance, empowerment and strong working relationships within committed teams. This culture is enhanced by an innovation dimension, promoting initiative, creativity and agility in daily practices. More moderate competitive and organizational components support performance orientation and provide a structured framework to ensure efficiency. [+]

Your Role

• Define and manage the strategy for preparing and migrating Finance data in ERP programs


• Plan and coordinate the Data Preparation workstream (milestones, deliverables, dependencies)


• Implement and manage the workstream governance (RACI, planning, follow-up meetings)


• Supervise the preparation of Finance Master Data (customers, suppliers, chart of accounts, fixed assets, intercompany)


• Manage the preparation of accounting balances and open items


• Manage data conversion cycles and testing phases (UAT)


• Define and apply data quality, control, and validation rules


• Identify, track, and mitigate risks related to data quality and deadlines


• Improve and industrialize data preparation processes (automation, reliability, efficiency)


• Optimize templates and deploy data preparation tools to enhance quality and compliance


• Coordinate local, business, IT, and integrator teams in multi-country environments


• Coach and support the workstream consultants


• Produce clear and concise reporting for steering committees (SteerCo)


• Communicate in a structured and effective manner with stakeholders


• Work in a Finance ERP environment (JDE appreciated)


• Use advanced Excel tools (Power Query appreciated)


• Work in an international context, fluent in English

Your Team

What will be your role in the #TeamDeloitte? You will join our Finance and Transformation teams as a Data Preparation Workstream Manager to manage and secure the preparation and migration of Finance data within digital transformation and ERP implementation programs (SAP, S/4HANA, JDE, etc.), ensuring data quality, reliability, and compliance throughout the project. In this role, you will:

• Define and manage the Data Preparation and Finance data migration strategy,


• Plan and coordinate the Data Preparation workstream (milestones, deliverables, dependencies, priorities),


• Implement and lead the workstream governance (RACI, committees, progress monitoring),


• Supervise the preparation of Finance Master Data (customers, suppliers, intercompany, chart of accounts, fixed assets),


• Manage the preparation of accounting balances and open items for conversion cycles,


• Lead data conversion cycles and testing phases (UAT),


• Define and deploy data quality, control, and validation rules,


• Identify, track, and mitigate risks related to data quality and project deadlines,


• Industrialize and improve data preparation processes (automation, reliability, efficiency),


• Optimize templates and deploy data preparation tools to enhance quality and compliance,


• Coordinate local, business, IT, and integrator teams in multi-country environments,


• Coach and support Workstream consultants,


• Produce clear and structured reporting for steering committees (SteerCo).

You will develop a reference role within our teams and our international network, combining functional Finance expertise, project leadership, and executive communication skills. You will benefit from managerial and professional training programs, and evolve in an environment that promotes responsibility, skill development, and operational excellence.

Your Qualifications

• Master's degree (Bac+5) from an engineering school, business school, or university with a specialization in finance, information systems, or digital transformation,


• 6 to 10 years of experience in Finance transformation and/or ERP implementation projects, ideally in a consulting firm environment,


• Proven experience in data migration / data conversion, including managing test cycles and go-live,


• Exposure to multi-country and multi-entity environments,


• Solid understanding of Finance data: customers, suppliers, chart of accounts, fixed assets, intercompany, balances, and open items,


• Proficiency in data conversion processes and UAT phases,


• Ability to define and structure a data preparation and data governance strategy,


• Experience in industrializing and improving data processes (automation, reliability, efficiency),


• Excellent command of advanced Excel (Power Query appreciated),


• Knowledge of one or more Finance ERP systems (JD Edwards appreciated, SAP / S/4HANA, Oracle...),


• Excellent written and oral communication skills,


• Fluent English essential in an international context.