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Stephane-AmStrong/README.md

Hi 👋, I'm Stéphane G. Adjakotan

Senior Full Stack Developer (.NET • React • Distributed Systems)

📍 Île-de-France, France
💼 LinkedIn 💻 GitHub


🚀 About Me

Senior Full Stack Developer (.NET / React) with 12+ years of experience building high-performance enterprise platforms.

I specialize in:

  • High performance backend systems
  • Clean Architecture / CQRS
  • Parallel & asynchronous processing
  • Real-time event-driven architectures
  • Scalable distributed systems

Industries:

  • Energy trading
  • FinTech platforms
  • Advertising tech
  • Healthcare systems
  • Education platforms

🧠 Architecture Expertise

Microservices
Event Driven Architecture
CQRS
Clean Architecture
Onion Architecture
High Throughput Processing
Parallel Programming
Real-Time Systems

🏗 Example Architecture

flowchart LR

Client[React Frontend]

API[.NET Minimal API]

CQRS[Application Layer CQRS]

Domain[Domain Layer]

DB[(PostgreSQL)]

Events[Domain Events]

SSE[Real Time SSE Stream]

Client --> API
API --> CQRS
CQRS --> Domain
Domain --> DB
Domain --> Events
Events --> SSE
SSE --> Client
Loading

Example architecture used in ENGIE monitoring platform.


⚡ High Throughput Processing Pipeline

flowchart LR

Upload[File Upload]

Stream[Streaming API]

Validate[Validation Layer]

Pipeline[TPL Dataflow Pipeline]

Workers[Parallel Workers]

Database[(Database)]

Upload --> Stream
Stream --> Validate
Validate --> Pipeline
Pipeline --> Workers
Workers --> Database
Loading

Architecture used for financial invoice processing at Pluxee.


🛠 Tech Stack

Backend

.NET C# CQRS Clean Architecture

Frontend

React Angular TypeScript

Databases

PostgreSQL MongoDB

DevOps

Azure Docker


💼 Professional Experience

ENGIE — Energy Trading Monitoring Platform

Full redesign of a 100+ servers monitoring system.

Key achievements:

  • .NET 9 Minimal API backend
  • CQRS architecture
  • Real-time updates using SSE
  • 53–68% performance improvement
  • React feature-based architecture

Pluxee — Financial Microservices Platform

Migration of billing system monolith → microservices.

Highlights:

  • TPL Dataflow pipelines
  • Streaming file ingestion
  • Parallel invoice processing
  • React automation tools

TF1 — Advertising Campaign Platform

Development of Digital Beta module inside TF1 App Labox.

Highlights:

  • Angular frontend
  • Parallel backend execution
  • Azure DevOps CI/CD

H24 Consulting

Development of GesMed Medical Imaging Platform:

  • Patient management
  • Appointment scheduling
  • Medical reporting
  • Billing workflows

Architecture:

  • CQRS
  • Onion architecture
  • Dockerized CI/CD

Simple IT — Education Platform

Development of Orageu-AUN, connecting African and international universities.

Key features:

  • Multi-tenant architecture
  • Academic program management
  • React portal for students

Ministry of Infrastructure — Benin

Development of construction project monitoring software.

Technologies:

  • .NET WinForms
  • SQL Server
  • UML modeling

📊 GitHub Stats

GitHub stats GitHub streak stats


🤝 Connect With Me

LinkedIn https://linkedin.com/in/stephane-g-adjakotan

GitHub https://github.com/Stephane-AmStrong

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