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Pierre BelinPB

Pierre Belin

Microsoft MVP .NET - Software Engineer C#

€550/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Pierre

I assist my clients in building robust and scalable software in C# / .NET:

👉 Software Design
👉 Full software development
👉 CI/CD pipeline implementation
👉 Documentation writing and knowledge transfer
👉 Deployment on containerized environments: Docker, Kubernetes
👉 Creation of predictive AI models to anticipate behaviors (purchases, failures, sales assistance, finance)

My recent clients: Symbotic (US), KickMaker (FR), Opal (FR), ASALOG (FR)...

Technologies:
👉 .NET, C#, ASP.NET
👉 RabbitMq, MassTransit
👉 Redis
👉 Akka.NET
👉 xUnit, unit tests, integration tests, TDD
👉 GitHub, GitLab, Azure DevOps, CI/CD
👉 Docker, Docker compose, Kubernetes

Some examples of needs resolved for my clients:
👉 Real-time piloting of a fleet of 8000 robots with massive message exchange (under 50ms)
👉 Monitoring application for gas distribution stations for vehicles with consumption management, alarms, notifications + creation of real-time dashboards
👉 Design and implementation of a scalable microservices infrastructure with Kubernetes on Azure for application scaling


⚠️ If your project is significant and you don't want to waste time building a team, I already work regularly with another developer with whom we are used to collaborating ⚠️
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lyon (up to 30km)

Experience

  • Anonyme
    .NET Developer
    TECH
    June 2023 - Today (3 years and 2 months)
    Refactoring and adding features to an existing application of 10 years to scale it (from X to X requests per minute) and improving testability to make the application robust with clean architecture using DDD and CQS.

    Mission Objectives:
    👉 Replicate all existing routes identically (for compatibility) + produce a new improved version of these routes
    👉 Improve authentication with Keycloak and Vault
    👉 Enhance database security with RLS + AlwaysEncrypted
    👉 Application testability (unit tests, integration tests, contract tests, E2E tests, performance tests)
    C# ASP.NET ASP.NET Core Vault SQL Server Docker Functional Specifications Security Keycloak User Testing
  • DigitalKin
    Python AI Developer
    TECH
    December 2023 - December 2023 (1 month)
    Consolidation of an existing LangChain application that generates a research tax credit (CIR) document from a subject, reducing its execution time from 2 hours to 20 minutes + implementation of third-party tests.

    Mission Objectives:
    👉 Build a Docker environment to start the existing solution
    👉 Identify performance bottlenecks
    👉 Parallelize ChatGPT calls to reduce execution time
    👉 Add new features to improve document rendering
    ChatGPT Python Docker Langchain User Testing Functional Specifications
  • Kickmaker
    Architecture / .NET / Akka Developer
    TECH
    June 2022 - November 2023 (1 year and 5 months)
    Boston, United States
    Scaling an application for fleet management (from 400 to 8000 bots with response time under 50ms) and simplifying/improving performance on existing code to adopt the Akka paradigm.

    Mission Objectives:
    -> Re-architect the existing application under Akka with local integration via Docker Compose
    -> Implement unit and integration tests to achieve over 80% code coverage
    -> Modify Helm deployment scripts to migrate to Kubernetes
    -> Meetings and presentations entirely in English for a team in Boston

    I first worked on the bot management part, then did the same work on the bot task distribution part.
    Akka .NET C# RabbitMQ Redis Docker Kubernetes

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Education

  • Engineering Degree in Studies and Development
    Ecole des Mines d'Alès
    2018
    Ecole d'ingénieur en alternance sur 3 ans en informatique, option études et développements (INFRES) Compétences développées : - Base en réseau et systèmes - Utilisation des systèmes d'information - Réalisation de gestion de projets - Développements Android, web et client

Skill set

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