Operator 03 · Engineering Practice
Co-founder · CTO · Engineering Practice
"Technology delivers when the human layer is engineered with the same rigor as the stack."Operating conviction · 2026
In his own words, in our voice
Twenty years of multi-sector technical leadership: retail (7 years), pharma (3 years), foodtech (3 years), electric mobility and sustainable technologies (2 years), gaming (3 years). Founder and operator of technology companies in France and the United States. CTO across borders, on both sides of the Atlantic.
Inside Hikari Blue, Xavier carries the Engineering Practice and the architecture of Hikari Blue Ops. He designs and runs complex migrations, durable platforms and the engineering culture that survives the program end date · the culture that lets the system keep improving once we are gone.
He is the technical counterpart for CEOs, CTOs and CPOs who need strategy and stack to converge · not in a steering committee deck, but in production. The named partner who walks into a stalled program and reframes it around what can actually ship in ninety days.
His conviction is operational, not ornamental. Technology only delivers when the human layer is engineered with the same rigor as the architecture. Relational excellence, intellectual agility and authentic engagement are not soft skills. They are part of the operating system.
Strategy that does not ship is not strategy. It is ambition with a deck.
Xavier de Maillard · Co-founder & CTO
Inside Hikari Blue
The Engineering Practice is the layer where architecture, build and engineering culture converge. Xavier is the named partner accountable for the technical bet, the system that ships, and the team that owns it after we leave.
Direct contact
Thirty minutes with Xavier. We map the real constraints, then he tells you what to ship in ninety days · and what to refuse to build, regardless of pressure.