Guillaume O.

Member of the executive committee and executive bodies, directly contributing to strategic decisions and resource allocation for a top-tier organization.

Managed and restructured an IT department of 1,000 employees: redesigned governance, brought key skills back in-house, and created a Data & AI sub-department to accelerate the industrialization of data/AI use cases, resulting in 10% payroll optimization and sustainable improvement in operational performance.

Managed an annual budget of €150 million and deployed a digital sovereignty policy generating €8 million in savings, reducing technological dependence and operating costs, with a projected €12 million by 2026.

Provided executive leadership for major transformations: renewal of the financial IT system (€40 million, 3 entities, 3,500 users), modernization of the HRIS delivered on time and within budget, deployment of a unified mobile application for over 2 million users.

Rationalized infrastructure: optimized a fleet of 8,000 servers, measurably improving service quality.

Strengthened cyber resilience: created shared vulnerability indicators and deployed an internal AI and cybersecurity e-academy to foster acculturation, adoption, and mastery of AI uses.

Defined and deployed a responsible data and AI strategy, including the creation of a dedicated Data & AI Lab for rapid use case prototyping, to accelerate the assessment of their business value, secure their scaling, and integrate AI into a governance and operational impact framework.

Managed social dialogue regarding digital transformations and ensured continuity of essential services for over 200,000 users.

Implemented a responsible and sustainable digital strategy.

Managed and restructured an IT department of over 200 employees in a context of profound organizational transformation.

Managed an annual budget of €40 million and a very large-scale IT system: 15,000 workstations, 800 business applications, 2,000 servers, and 3 data centers.

Rationalized the application portfolio and optimized AMS contracts, generating over €4 million in recurring savings.

Transformed the technological foundation: migrated thousands of users to Microsoft 365 and modernized core business systems.

Managed the consolidation of 3,000 employees onto a single site and the associated digital transformation (workstations, networks, and collaborative tools).

Consolidated and secured critical infrastructure: rationalized server environments and implemented two redundant server rooms to ensure business continuity.

Structured IT, data, and AI governance: established a decision-making committee structure, performance indicators, and enhanced project and investment management.

Defined and deployed a Data & AI strategy: governed usage, put business use cases into production, implemented an organization-wide acculturation program, and structured a sovereign data foundation.

Member of the group's executive committee, directly contributing to strategic decisions in a highly competitive international academic environment.

Managed an IT organization of 130 employees and oversaw a global information system serving 15,000 students and 1,000 staff across 11 international campuses (Europe, Americas, Asia).

Managed an annual budget of €24 million and allocated €50 million in multi-year digital investments as part of the group's digital transformation.

Led a major academic and administrative IT transformation program: migrated the group's LMS (€15 million program) and modernized core business systems, enhancing the group's international management capabilities and performance.

Modernized the technological foundation and transformed infrastructure supporting over 50,000 users internationally.

Structured group IT governance, deployed a data & analytics strategy, and managed multidisciplinary international teams.