DIV Protocol
Engineering assignment on the encrypted collaboration suite of a sovereign software vendor serving regulated professions. Three modules delivered, each multi-tenant and encrypted at rest, backed by the suite's shared SSO. Integrity proof: a Merkle tree (RFC 6962) whose root is anchored on the Solana blockchain, establishing a document's integrity and anteriority without publishing its content — demonstrated end to end at VivaTech in June 2026. Calendar: NestJS backend and Next.js front built from scratch — iCalendar (RFC 5545), iMIP invitations and external guest replies, email reminders, .ics subscriptions, recurrence, multi-calendar and peer sharing, coupled to the suite's document storage and video conferencing. Mail: a universal client with no mail server, connecting to existing accounts over IMAP/SMTP and OAuth, with automatic provider discovery, conversation threading, a multi-window composer, sandboxed HTML reading and per-case message filing.
Mission
Engineering assignment on the encrypted collaboration suite of a sovereign software vendor serving regulated professions. Three modules delivered, each multi-tenant and encrypted at rest, backed by the suite's shared SSO. Integrity proof: a Merkle tree (RFC 6962) whose root is anchored on the Solana blockchain, establishing a document's integrity and anteriority without publishing its content — demonstrated end to end at VivaTech in June 2026. Calendar: NestJS backend and Next.js front built from scratch — iCalendar (RFC 5545), iMIP invitations and external guest replies, email reminders, .ics subscriptions, recurrence, multi-calendar and peer sharing, coupled to the suite's document storage and video conferencing. Mail: a universal client with no mail server, connecting to existing accounts over IMAP/SMTP and OAuth, with automatic provider discovery, conversation threading, a multi-window composer, sandboxed HTML reading and per-case message filing.