Backend engineer · Software craftsmanship

Mathieu
Roux

Backend engineer at SmartGarant. I like systems that are simple to reason about, code that survives contact with production, and the occasional weekend deep-dive.

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01 - About

4 years building
production back-ends

Currently at SmartGarant, a rental-guarantee insurance company - I work on production .NET 10 microservices: AI-powered anti-fraud document pipelines, the claims platform, and tenant-application scoring for agencies and landlords.

4+
years in production
RNCP 7
Full-Stack Expert
Languages
C# .NETTypeScript
Frontend
React.jsVue.jsAngular
Databases
MongoDBPostgreSQLRedisNeo4j
Architecture
MicroservicesgRPCRabbitMQEvent-DrivenCaching
Cloud / AI
AzureCI/CDAzure OpenAIRAGEmbeddings
ACADEMIC PROJECT · Final Project · 2024-2025

Traveel.

Meet travelers. Share journeys.

A microservices social network where travelers meet, plan trips and share journeys. Event-driven over RabbitMQ with idempotent consumers, gRPC re-synchronization, and a Neo4j-powered recommendation engine.

TRAVEEL AIRWAYS
FLT · TVL2025
From
monolith
legacy backend
To
microservices
event-driven
Gate
15
microservices
Seat
Neo4j
graph engine
Class
RabbitMQ
event bus
C# .NETPythonPostgreSQLRedisRabbitMQMongoDBNeo4jgRPC
M
MGpt
RAG · ANS Knowledge Base
online
What does the ANS recommend for FHIR API security in healthcare apps?
According to ANS guidelines, FHIR APIs must implement OAuth 2.0 with PSC authentication and follow the doctrine technique du numérique en santé.
ans-doctrine.pdf fhir-security-guide.pdf
ACADEMIC PROJECT · ANS · 2025

MGpt

Internal AI assistant with RAG.

A mobile AI assistant built as a school project with Exakis Nelite, offering semantic search across the Agence du numérique en santé (ANS) documentation. Image analysis + hybrid search engine on Azure OpenAI + AI Search, with conversation memory backed by CosmosDB.

Hybrid semantic + keyword search
Multimodal image understanding
Vector embeddings on internal docs
C# .NETAzure OpenAIAzure AI SearchCosmosDBKotlin
SIDE PROJECT · 2026

MINE-MARKET

> Minecraft bots that buy & resell items on a server.

40+
BOTS ONLINE
24/7
UPTIME
20M+
TRADES
20+/s
EVENTS
BOT-SPAWNER
Process spawner - API ↔ bot bridge
BACK-END API
Hono REST backend
DASHBOARD
Next.js 16 - Manage bots, view stats
DISCORD-BOT
Status notifications
POSTGRES
Bots, configs, trades ledger
ARCHITECTURE
  • ► Process spawner: 1 PID per bot (isolated)
  • ► Hono REST API ↔ bot bridge
  • ► Next.js 16 dashboard: add, manage, stats
  • ► Discord bot for trade & status alerts
  • ► PostgreSQL: bots, configs, trades ledger
STACK
NODE.JSHONONEXT.JS 16DISCORD.JSPOSTGRESDOCKER
// SIDE PROJECT · 2023

HABITS.

No excuses. Just streaks.

A daily habit tracker built with .NET on the back, React on the front. Train your discipline like you'd train for a marathon.

42
day streak
98%
consistency
Last 28 days
+3% this week
🏃Morning run
📖Read 20 min
Code commit
💧Hydrate 2L
ACADEMIC PROJECT · 2024

QuizWorld

Endless quizzes generated by Azure OpenAI · Angular & .NET

Question 3 / 10
⏱ 0:24

Which database is best suited for graph traversal queries?

Let's build something

Open to a chat
over coffee or Slack.

Open to roles where the tech actually matters - products that scale, teams that ship.
Full remote or Nice / Antibes / Sophia-Antipolis / Cannes.

LinkedIn
© 2026 Mathieu Roux · Crafted with care