MohammedEddarif

Enterprise blockchain-based Document Management System serving multiple organizations through a multi-tenant architecture. I joined the platform in 2024 and took full-stack ownership of new core features, delivering them end-to-end from requirements to production.

• Support user role system with automated organization-based ticket routing
• Multi-tenant announcement module with two broadcast levels: platform-wide and per-organization
• Led Angular migration from v12 to v21 across 9 major versions
• AI assistant (RAG): in progress as a separate Spring Boot 4 service built with Spring AI: PDF ingestion, retrieval from PostgreSQL/pgvector, local models via Ollama, and an automated evaluation test suite. It integrates with the existing platform over its API.
• Optimized MongoDB aggregation queries, reducing API response times by ~35%

Full Stack Developer at IR4LAB Africa

Tripycco is a two-sided marketplace for organized trips in Morocco. Travel agencies create an account, get verified, and publish their trips with itineraries, departure dates, pickup points, pricing and seat limits. Travelers browse every agency's offers in one place, compare them by price, duration, rating and experience type, and book the one that suits them. It solves a real trust problem: travelers booking organized trips often can't tell whether the organizer is legitimate, so only verified agencies can publish, and reviews come from travelers who actually booked.

• Backend designed and built from scratch with Spring Boot and a REST API consumed by a Next.js frontend
• Two account types, agency and traveler, each with its own scoped permissions, secured with Spring Security, JWT and OAuth2
• Agency verification before an agency's trips can go live on the marketplace
• Trip publishing with day-by-day itinerary, multiple departures, pickup points and per-departure seat limits
• Search and filtering by destination, experience type, price range, duration and rating, with server-side sorting
• Booking flow with live seat availability, plus reviews restricted to travelers who booked the trip

Co-founder · Full-Stack Engineer & Backend Architect

Raaqib is a multi-tenant SaaS for small and medium clothing stores. It solves a real operational problem: when an owner steps away, they lose visibility into what's selling, at what price, and by whom. Raaqib gives owners a product catalog with variants, multi-location stock tracking, supplier management, fast in-store sales recording, and a price-compliance signal that flags every sale against set minimum and standard prices. Owners delegate scoped actions to employees through a granular role-and-permission system, and view sales statistics over time. Built as a true multi-tenant platform where each store is an isolated tenant on shared infrastructure.

• Multi-tenant architecture with ORM-level tenant isolation (no cross-tenant data access)
• Backend designed and built from scratch with strict layering and DTO boundaries
• Authentication with JWT access tokens + rotating, revocable refresh tokens; fresh DB-backed authorization
• Role-based access control with granular per-employee permissions
• Atomic, idempotent sales with optimistic-locking concurrency control on stock
• Price-compliance engine comparing actual sold price to min/standard price
• Flyway versioned migrations, RFC-7807 error handling, pagination, and N+1 elimination
• Full integration test suite on real Postgres via Testcontainers, plus OpenAPI contract and CI

Full-Stack Engineer & Backend Architect: designed and built the entire multi-tenant backend from scratch