Position
Erwan leads technology and engineering for the collective. On the technology side he modernizes IT estates: cloud, AI, headless and composable architectures, and cybersecurity, from monoliths to MACH stacks and from mainframe to cloud. On data and AI he builds scalable data infrastructures and turns data into strategic decisions, deploying MCP servers and agentic frameworks to enable AI-driven use cases. On organization he runs large-scale agile with SAFe and Scrum and drives business-model transformation aligned with market trends. He has held several P&L and C-level roles in blue-chip companies across multiple geographies.
Numbers
Documented outcomes across his mandates include e-commerce revenue share moving from 4.7% to 7% at Celio group, a TCO reduction of 87% moving PMU from mainframe to AWS cloud, a 99.995% SLA on the replatformed betting applications, 250 people managed across 5 business units at AXA Group, more than 7000 new marketplace suppliers onboarded at Adeo, and 2.5 months from MVP to go-to-market in the AXA digital factory.
Track record
At Digital Bridge, since 2024, he runs omnicommerce and AI transformation advisory as founder and CTPO, acting as fractional chief for scale-ups in commercial expansion, external growth and crisis contexts: a six-month CPTO transition mandate at Satelia, the MedTech SaaS telemonitoring platform, completed in July 2026; a CDIO turnaround and the tech and data due diligence behind The Kooples acquisition by Verdoso; and a CPTO and AI founder mandate at Peetchr, where he built the product, technology and AI from scratch and took the venture to France’s Bpifrance DeepTech label. At Celio, on the executive committee, he was Chief OmniCommerce, Digital and Data Officer across 10+ countries and 1220 stores, delivering omnichannel replatforming, a 13% lift in average basket, the Camaieu brand relaunch, a data-mesh organization, and a 30% TCO reduction. At Adeo and Leroy Merlin he was CDIO across 22 business units and 16 countries, managing 530+ people across six countries, building supply chain as a service, onboarding more than 7000 marketplace suppliers and collapsing referencing lead time from 124 to 15 days. At Chantelle he was VP E-commerce, Retail and Technology, driving supply-chain transformation and international brand-platform expansion. At AXA he was Group CTO Digital and Big Data, introducing blockchain into insurance processes, including the Fizzy parametric product. At Publicis and Tata Consultancy Services he was CTO on critical programs for Carrefour, LVMH’s Louis Vuitton and Dior, Canal+, Kering, Societe Generale and BNP Paribas. At PMU he was Group Chief Enterprise and Software Architect, moving the estate from mainframe to AWS. His track begins as founder and CTO of a HealthTech startup of 40 people, acquired by Ramsay Sante.
Career path
2024 to present · ARCHITEKT and Digital Bridge · CTO and co-founder. Omnicommerce, data and AI transformation advisory for blue-chip companies and scale-ups across retail, luxury, media, health and advertising, with fractional CPTO and CDIO mandates.
2026 · Satelia · CPTO (transition). A six-month transition mandate on a SaaS medical telemonitoring platform, completed in July 2026.
2024 to 2025 · The Kooples · CDIO advisor. Tech and data due diligence for the acquisition by Verdoso.
2024 · Peetchr · CPTO and AI founder. Built the product, technology and AI from scratch for an AI conversational recruitment platform and obtained France’s DeepTech label.
Celio · Chief OmniCommerce, Digital and Data Officer. Executive committee, 10+ countries and 1220 stores: omnichannel replatforming, average basket +13%, Camaieu relaunch, data-mesh organization, TCO -30%.
2019 to 2024 · Adeo and Leroy Merlin · CDIO. 22 business units, 16 countries, 530+ people across six countries: supply chain as a service, 7000+ marketplace suppliers, referencing lead time 124 to 15 days, EUR 9.5M FinOps savings.
Chantelle · VP E-commerce, Retail and Technology. Supply-chain transformation and international brand-platform expansion.
AXA · Group CTO Digital and Big Data. 250 people across five business units, blockchain in insurance including Fizzy, a 2.5-month MVP-to-market digital factory.
2011 to 2017 · Publicis and Tata Consultancy Services · CTO. Critical programs for Carrefour, LVMH (Louis Vuitton and Dior), Canal+, Kering, Societe Generale and BNP Paribas.
PMU · Group Chief Enterprise and Software Architect. Mainframe to AWS, TCO -87%, a 99.995% SLA on the replatformed betting applications.
HealthTech startup · Founder and CTO. A 40-person venture, acquired by Ramsay Sante.
Education and credentials
He trained at HEC Paris, at ENSAM Arts et Metiers ParisTech, at EICNAM, and at EPITECH. He is certified AWS Solutions Architect (Professional and Associate), GCP Professional Cloud Architect and Data Engineer, SAFe Agilist, and Certified Scrum Product Owner. He has also lectured in data engineering, DevOps, cloud and automation at the Data Sciences Technology Institute, and in security and networks at Ionis-STM and Universite Paris 5.