Sébastien Ferrand

Azure solution architect · .NET / C# expert · Tech Lead

Sébastien Ferrand

I have been designing and evolving applications and platforms for more than twenty-five years. Today, I define the architecture of Azure systems and support development teams working in .NET and C#. I also created Allure+, a training app, and have been a triathlon coach since 2017.

See my projectsLinkedInGitHub

Career

Professional experience

I have been working in software since 2001.

  1. Since April 2026

    Architect

    Hardis Tech Services

    I respond to tenders and design cloud architectures on Azure, from defining the technical choices to their implementation.

    • Azure
    • Cloud architecture
    • Bid responses

  2. July 2025 – March 2026

    Technical expert · Betclic

    Via Exakis Nelite (Groupe Magellan Partners)

    I work in the Fraud team, in a mixed Azure and AWS environment, with .NET and TypeScript. I take part in developing and evolving the services that detect, verify and qualify fraudsters.

    • Azure
    • AWS
    • .NET
    • TypeScript

  3. December 2024 – June 2025

    Solution architect and technical expert · Somfy

    Via Exakis Nelite (Groupe Magellan Partners)

    I design and build a price management application (PTI / PCI). I designed the import of more than 100,000 CSV lines to initialise the data, then the simulation of price changes. I optimised the application so that it stays responsive on a database of more than one million records.

    • C#
    • .NET
    • Solution architecture
    • CSV import

  4. April 2024 – December 2024

    Technical expert and DevOps · Staübli

    Via Exakis Nelite (Groupe Magellan Partners)

    I act as the link between the development team and the client’s systems team. I maintain the project’s Azure infrastructure, apply security rules and carry out occasional development work.

    • Azure
    • DevOps
    • Security

  5. April 2022 – July 2024

    Tech Lead and solution architect · TotalEnergies (Total Digital Factory)

    Via Exakis Nelite (Groupe Magellan Partners)

    I am Tech Lead of the CI/CD team: eight developers and DevOps profiles, with a Product Owner and a Scrum Master. I write the technical designs, build the most complex parts, review pull requests and train the more junior profiles. I design APIs and Azure Functions that make it easier for development teams to integrate CI/CD tools, as well as reporting applications on how they are used for FinOps teams, and the securing of development environments.

    • Azure DevOps
    • Azure Functions
    • CI/CD
    • FinOps
    • Checkmarx
    • Team management

  6. March 2020 – March 2022

    Technical expert, solution architect and DevOps · Ontex

    Via Exakis Nelite (Groupe Magellan Partners)

    I designed the Azure architecture of an IoT project for care homes for elderly people, which improves continence monitoring through connected protective products. I developed the IoT data ingestion application in .NET 6 / C#, and a webhook that forwards LoRaWAN data from The Things Industries to Azure, as no connector was available. The project received the “Best Digital Innovation” award (Corporate IT Awards 2023).

    • Azure
    • .NET 6
    • C#
    • IoT
    • LoRaWAN
    • Cloud architecture

  7. February 2019 – March 2020

    Technical expert, pre-sales

    Exakis Nelite (Groupe Magellan Partners)

    Within the ESC entity, I help write responses to tenders and build proofs of concept (POC). I produce estimates and costings, and write client presentations.

    • Pre-sales
    • Bid responses
    • Proofs of concept (POC)
    • Estimating

  8. February – March 2019

    DevOps expert · Renault

    Via Exakis Nelite (Groupe Magellan Partners)

    I built a CI/CD pipeline that creates pre-configured disk images. Virtual machines use them to run autonomous vehicle driving simulations.

    • CI/CD
    • DevOps
    • Virtualisation

  9. September 2018 – February 2019

    Technical expert and DevOps · TotalEnergies

    Via Exakis Nelite (Groupe Magellan Partners)

    I followed the projects and provided technical supervision, and I validated the technical architecture documents (DAT). I carried out Azure architecture studies and set up the DevOps platform: a CI/CD chain, with code quality control through SonarQube.

    • Azure
    • CI/CD
    • SonarQube
    • DevOps

  10. September 2016 – September 2018

    Technical expert, DevOps and lead developer · Société Générale

    Via Novencia

    I developed applications on ASP.NET Web API 2 and Angular, with OAuth2, SQL Server and Entity Framework, applying dependency injection and unit tests. I helped write the group’s standards for REST APIs, and led a team of four developers, two of them offshore: task allocation, technical specifications, training and coordination.

    • ASP.NET Web API 2
    • Angular
    • OAuth2
    • SQL Server
    • Entity Framework
    • Unit tests

  11. May – September 2016

    DevOps expert · Rothschild

    Via Novencia

    I wrote the documentation for migrating GitHub or SVN projects to Azure DevOps, and set up the first CI/CD pipelines. I also wrote the “How to” guides that make it easier to create new projects, and installed an agent for on-premises deployments.

    • Azure DevOps
    • GitHub
    • SVN
    • CI/CD

  12. September 2014 – May 2016

    Lead developer · SFIL

    Via Novencia

    I followed the .NET projects and wrote the development recommendations and technical standards. I managed the TFS server and the deployments to UAT and production.

    • TFS
    • .NET
    • Development standards
    • UAT and production

  13. June 2013 – September 2014

    Technical expert, Scrum master and DevOps · UNCA - Union Nationale des CARPA

    Via Soat

    I designed an ASP.NET MVC 4 application on SQL Server 2012, with Entity Framework, AppFabric and Web API. I applied dependency injection, the Repository pattern and unit tests, and led a team of six developers.

    • ASP.NET MVC 4
    • SQL Server
    • Entity Framework
    • AppFabric
    • Web API
    • Scrum

  14. February – June 2013

    Developer · Eurosport

    Via Soat

    I developed the Windows Phone 8 application “Eurosport Player”, whose service layer is provided by Eurosport. I wrote the JSON services in C# that feed the application, and set up the custom lock screen and live tiles.

    • Windows Phone 8
    • C#
    • JSON
    • N-tier

  15. June 2012 – February 2013

    Developer · Criteo

    Via Soat

    I merged two web applications, one in ASP.NET WebForms and one in ASP.NET MVC 4, into a single site, and wrote the redirection rules between them. I set up a distributed cache, refactored the lower layers and provided technical support to the team.

    • ASP.NET WebForms
    • ASP.NET MVC 4
    • Autofac
    • Distributed cache

  16. January – May 2012

    Developer · Canal+

    Via Soat

    I developed a secure token-based authentication service for users of the web applications and of devices other than the Canal+ box (Freebox, Xbox…).

    • Authentication
    • Tokens
    • Security

  17. February – November 2011

    Technical expert · Société Générale

    Via Soat

    I provided technical support to a development team, designed an application layer for modular and generic batch jobs, and set up unit tests.

    • .NET
    • Batch jobs
    • Unit tests

  18. January 2010 – January 2011

    Lead developer

    Netquarks

    I led a team of six developers. I designed the evolutions of the SOA architecture, built a data access abstraction and optimisation layer, and implemented automated unit tests.

    • .NET
    • SOA
    • Unit tests
    • Team management

  19. June 2008 – January 2010

    Developer · AXA-IM

    Via Régie

    I migrated an ASP.NET WebForms 1.1 application to version 2.0, then designed and developed an application that shares fixed costs across client portfolios (Fee Sharing).

    • ASP.NET WebForms
    • ASP.NET 2.0
    • Migration

  20. June 2007 – June 2008

    Developer · BNP Paribas

    Via Régie

    I studied and migrated an ASP.NET WebForms 1.1 application to version 2.0, then updated an application from 2.0 to 3.5 that uses WCF. I also developed applications that use web data to detect insider trading.

    • ASP.NET WebForms
    • ASP.NET 3.5
    • WCF
    • Migration

  21. April 2006 – May 2007

    Developer · France Télévisions

    Via Régie

    I developed and maintained modules of the News/Forecasts document portal, intended for journalists. I also created a Windows service that automatically adds the MPEG files of a foreign news agency to the document database.

    • .NET
    • Windows service
    • Document portal

  22. June 2005 – March 2006

    Design engineer · IXIS Securities

    Via Régie

    I migrated the company website to ASP.NET WebForms 2.0, and rewrote a VB6 application in Windows Forms.

    • ASP.NET WebForms 2.0
    • VB6
    • Windows Forms

  23. May 2004 – July 2005

    Developer · NOVACY

    Via Régie

    I migrated an application from Sybase to Oracle, and designed and developed a CRM suited to the company’s needs, and an application for managing support requests. I also built an application for the buy-back of employees’ shares.

    • Sybase
    • Oracle
    • CRM

  24. June 2001 – May 2004

    Developer · Groupe Volkswagen France

    Via Régie

    I developed an intranet application giving the sales forces and marketing access to business intelligence data, handled the evolutionary maintenance of the Volkswagen product catalogue, and developed the back office of the showroom tools.

    • Intranet
    • Business intelligence

Skills

Technologies and expertise

The largest words are the ones I use most often.

  • Azure
  • .NET
  • C#
  • Cloud architecture
  • Software architecture
  • Tech Lead
  • DevOps
  • CI/CD
  • Azure Functions
  • ASP.NET
  • ASP.NET MVC
  • Web API
  • TypeScript
  • Swift
  • SwiftUI
  • Kotlin
  • Jetpack Compose
  • AWS
  • FinOps
  • IoT
  • Scrum
  • Team leadership
  • Xamarin
  • Windows Phone
  • Mobile
  • GitHub Copilot

Highlights

Education, awards and languages

Education

  • Claude Code (AI agents for development)AJC Formation · 2026
  • Maîtrise (four-year degree) in computer scienceUniversité de Picardie Jules Verne · 1998 – 1999

Awards

  • Microsoft MVP C# (2004 – 2009)
  • Microsoft MVP Windows Platform Development (2015)

Languages

  • FrenchNative or bilingual
  • EnglishB2 (CEFR), professional level

Certifications

  • GitHub Copilot (GH-300)2026
  • Microsoft Azure Fundamentals (AZ-900)2025
  • Microsoft Certified Solutions Associate: Web Applications2016
  • Microsoft Certified Solutions Developer: App Builder2016
  • Microsoft Certified Professional Developer: Windows Azure Developer2014

Outside of code

Passions

What I do outside of work, with the pages dedicated to each.

Triathlon

Swimming, cycling, running. I have practised the full discipline since 2015.

See the page

Running

Coached sessions, long runs and speed work.

See the page

Cycling

Road rides and coached training sessions.

See the page

Photography

I photograph light and atmosphere, by night as well as by day.

See the page

Music

Horn, bass, guitar. Orchestras, bands and arrangements of songs for children.

See the page