Freelancer profile translated to English.
Back to original languageAbout Sébastien
Experienced IT leader, I operate at the crossroads of IT management, technological strategy, IT architecture, and product management. I support companies in designing and implementing high-performing, sustainable digital platforms aligned with their business challenges. My areas of expertise cover organizational management, building digital platforms, integrating AI into organizations, modernizing legacy systems, deploying Lean-DevOps practices, and developing technological roadmaps. With proven experience in various contexts – public sector, finance, retail, industry, services – I strive to combine innovation, pragmatism, and operational efficiency.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- SNCF ConnectMission: Delivery Director (acting Head of Publisher Factory)November 2025 - Today (9 months)Direction of the factory responsible for developing the TESMO product suite for mobility management.
- Operational management of 180 people in 22 teams to drive the delivery of 15 products.
- Hierarchical management of the delivery managers team.
The mission also involves supporting SNCF Connect in its transformation on the following axes:- Acquire publisher culture
- Leanify the factory
- Empower teams
- Deploy AI in working methods and support the underlying transformation of skills and practices
- Support teams towards a matrix structure
- Structure and implement "professional services" to professionalize the integration service offering in the publisher activity, as well as AVV and CSM activity.
- Caisse des dépôts et consignationsMission - CTOJanuary 2022 - November 2025 (3 years and 10 months)The mission is to guide and design the architecture of the digital and distribution platform (composed of 12 teams for 150 people), and to orient its technological trajectory. In parallel, I advise and support CDC in deploying DevOps and ACN practices throughout the organization, in order to redefine processes, development culture, and practices. Achievements:
- Design of the BDT distribution operational model
- Design of an omnichannel architecture around CRM
- Reshaping online banking services and integration into the customer portal
- Replacement of the authentication system (HDI to Trustbuilder)
- DSP3 compliance
- Migration of CRM to Azure
- DISNEYLAND PARISMission - Solution ArchitectJune 2021 - September 2022 (1 year and 3 months)As part of building a new commercial offering level for Disneyland Park, as well as its extension on the "Star Wars" theme, I supported Disney on the following projects:
- Redesign of the e-commerce platform for the presentation and distribution of offers.
- Study of the software solutions to be implemented to realize the new offers.
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Education
- Executive Certificate in Strategy and InnovationMIT Sloan - Management executive education2022Organizational Design for Digital Transformation ; Business Model Innovation for Organizational Transformation ; Platform Strategy ; Blockchain Technologies: Business Innovation and Application
- Master's Degree in Software EngineeringEICNAM2005Ingénieur diplômé, informatique option systèmes d’information
Certifications
- Open Agile Architecture PractitionerThe Open Group2025
- SAFe 5 SPCScale Agile Inc2019