# Fabien Meurillon (@fabien.meurillon.org)

Profile: https://sifa.id/p/fabien.meurillon.org
Headline: Senior Engineering Leader

## About

Software architect, product engineering team architect, distributed systems enthusiast, clean code lover, very average table tennis player. I can act as Engineering Manager, Staff Engineer or Senior Software Engineer.I am currently most interested in digital products software delivery. I thrive in Product-oriented organizations and I love to build teams with strong customer empathy. I'm currently interested in explorating outcome-oriented engineering.I usually work (but not only) with Golang, Kotlin, Java, TypeScript, or PHP. I'd also love to work more with Rust.Authors References:- Charity Majors and her blog- Team Topologies by Matthew Skelton- The Manager's Path by Camille Fournier- Staff Engineer by Will Larson- An Elegant Puzzle by Will Larson- The Pragmatic Engineer from Gergely Orosz

## Experience

- **Kiabi - Senior Software Engineer at Sopra Steria** (2011 – 2013)
  Worked on the migration of the previous EAI system to a SOA+ESB-oriented platform.
- **Head of Sport Experiences engineering at Decathlon Digital** (2024 – present)
  Orchestrated the engineering strategy and execution for Decathlon's "Sports Experience" digital domain, a portfolio that proudly delivers Decathlon Coach, Decathlon Outdoor, and Kiprun Pacer. With direct leadership over more than 40 engineers, I was responsible for defining and evolving the domain's architecture and technical roadmap, ensuring these products consistently provide outstanding user experiences and meet Decathlon's global ambitions.
- **Technical Expert / Software Architect at Smile** (2015 – 2017)
  Missions:
  \*    symfony3, java, php, mysql and wso2 trainer
  \*    technical capitalization and knowledge sharing
  \*    continuous integration and continuous deployment evangelist
  \*    projects technical coaching, code reviews and audits  Consulting
  \*    WSO2 ESB / Api Manager architect Ex: Crédit Agricole Payment & Services, Happychic  Solution Technical Leader
  \*    Symfony
  \*    WSO2 ESB, API Manager, Identity Server and Data Analytics Server
  \*    Akeneo PIM
- **Auchan Retail France - Software Architect at Smile Open Source Solutions** (2014 – 2015)
  migration of back-office and middle office information system from 10-15 years PHP legacy monoliths member of the "Architecture" team (3 people) in a 40+ engineering team co-designer of the new microservices architecture which had to be message-oriented, api-centric, scalable and resilient
- **Supermarchés Match - Software Engineer at Sopra Steria** (2007 – 2011)
  Enterprise Application Interchanges Technical Lead
  \*    lead developer for new EAI projects
  \*    design of application data interchange
  \*    design of coding rules, quality metrics and quality process
  \*    operator for non-production environments
  \*    training and coaching of EAI developers
  \*    build of reporting and alerting tools  PHP Technical Lead
  \*    lead developer and technical manager for small-sized php specific applications  Java EE Developer
  \*    developer for some specific Java applications relying on Spring / Hibernate
- **Software Architect - Observability team at OVHcloud** (2018 – 2019)
  Initialize a new observability policy of OVHcloud information system, covering orchestration of:
  \*    distributed tracing
  \*    monitoring / alerting
  \*    incident and escalation management
  \*    metrics and logs
- **Senior Software Engineer - Payment Team at OVHcloud** (2017 – 2017)
  Integration of the Vantiv Payment Service Provider to the OVHcloud billing&payment system, required to deploy the company in USA.
- **Technical Leader at Decathlon Technology** (2019 – 2022)
  Recruited and managed a 10+ engineering team to create Decathlon Activités, a global Sport Service Marketplace.
  \* Hands-on product architecture and operations
  \* Make-or-buy strategist for product operations (PIM, Middle-office, Payment…)
  \* The product is now deployed in 15 countries reaching millions of turnover
- **Software Architect - Urban Planning team at OVHcloud** (2017 – 2018)
  Design and implementation of a governance backend to track and map applications and data interchanges. Goals were to pursue the organic growth of the microservice information system, while keeping the business processes safe and under control.
  
  Created related developer tooling to allow lifecycle management of applications inside the microservices ecosystem.
- **JavaEE Teacher at Université Catholique de Lille** (2015 – 2016)
- **Technical Expert at Smile Open Source Solutions** (2013 – 2014)
- **Senior Engineering Manager at Decathlon Digital** (2023 – present)
  Orchestrated the successful overhaul of the Decathlon Outdoor application, rectifying deep-seated technical and organizational challenges. This involved accelerating iOS development to catch up from a 6-month deficit, optimizing team structures for improved collaboration, and establishing clear, efficient delivery processes. I also architected the technical strategy for the product's international growth, focusing on scalable solutions for catalog management and human resources.
- **Parenting at Home** (2009 – present)
  0 to 3 scale up. Assets Retention: 100%. Subjects are still alive and accounted for, infant to teenager. Nutritional Compliance: 80%, despite structural raising consumption of pastas. Risk mitigation: < 10 emergency room visits Logistics Efficiency: 95% On-Time
  \- Achieved a 16-year record of "mostly on time" for table tennis/ballet.
- **Staff Software Engineer at Decathlon Digital** (2022 – 2023)
  Bootstrapped "0 to 1" then "1 to n" Kiprun Pacer engineering team and product architecture (Flutter, TypeScript, CMS, Rule Engine...). Now has 1M downloads, 300k active users, 4.6 app store rating and a Net Promoter Score over 50.
- **Supermarchés Match - Technical Project Manager at Sopra Group** (2011 – 2011)
  Built a solution to calculate more than 30 profit indicators at the transaction level (4 millions of transactions per day, 250 stores).

## Education

- **Université des Sciences et Technologies de Lille (Lille I)** — MIAGE (2003 – 2007)

## Skills

- DevOps
- Management
- Nursing
- Kubernetes
- Spring Boot
- Spring Batch
- Team Leadership
- Symfony Framework
- Service-Oriented Architecture (SOA)
- SOAP
- BPM
- Terraform
- Opsgenie
- Cross-functional Team Leadership
- Architecture
- PostgreSQL
- Squash
- Badminton
- Table Tennis
- TypeScript
- Continuous Integration
- SOA
- Scrum
- PHP
- Java
- Java Enterprise Edition
- Spring
- SQL
- JavaScript
- MySQL
- Linux
- Spring Framework
- UML
- Tomcat
- XML
- Microservices
- Go
- Symfony
- Software Solution Architecture
- Belgian Beers
- Flutter
- Child Development
- Supply Chain Management
- Team Building
- Accelerate
- Table Tennis Coaching
- Conflict Management
- Janitorial Services
- Parenting
- Continuous Integration and Continuous Delivery (CI/CD)
- Team Topologies
- Board Games

## Projects

- **Auchan.fr - Back offices**
  SOA Architect Refonte des applications métiers Auchan.fr (Symfony2, Talend ESB)
- **Auchan.fr - Site traiteur** — http://traiteur.auchan.fr
  Refonte en Magento EE du site Auchan Traiteur
- **Auchan.fr - Retrait 1H** — http://www.auchan.fr
  Réalisation en Symfony2 des écrans de "Retrait 1H" sur le front-office Auchan.fr. Application de publication d'offres marchandes intégrée au SI Auchan.fr par brokers ActiveMQ et Web Services SOAP
- **Moteur d’agrégation de réseaux sociaux d'entreprises**
  Pour une grande entreprise du secteur énergétique, refonte du batch de collecte Java/Spring. Base orientée graphe Sesame & Front-office Symfony2 (moteur de recherche/gestion de fiches profils).
- **Paris CityVision** — http://www.pariscityvision.com/fr/
  Responsable de la maintenance du site, stabilisation de la plateforme e-commerce Magento
- **Ville de Lille** — http://www.lille.fr
  Reprise locale de la maintenance du projet Jahia 6.1
- **Kiabi & IDGroup - Centre de services**
  Référent technique Java EE & PHP Architecture orientée services (Open ESB) Développements C# (.Net Framework & Compact Framework 3.5) Développements Flex
- **R&D - Prototypage Magento**
  - Coaching technique des développements autour de Magento
- Rédaction du volet technique des cahiers des charges, conduite des ateliers techniques du recueil des besoins.
- Intégration des solutions aux S.I. existants
- **Supermarchés Match - Moteur de calcul de données financières**
  Pilotage d'un chantier au coeur d'un projet stratégique de calcul de données financières.
- Assistance réalisation du cahier des charges
- Conception de l'architecture applicative
- Pilotage de de l'équipe projet (4 personnes)
- Technologies Spring Batch, Spring MVC, JavaEE, Hibernate, PostgreSQL, ODI
- Volumétrie en 100+ millions d'enregistrements générés par jour.
- **Supermarchés Match - Responsable technique des flux**
  Référent technique de l'EAI :
- Conception, architecture et développement de l'intégration des applications dans le S.I
- Définition des normes de développement et des procédures qualité
- Administration des environnements de développement et de recette
- Coaching technique, intégration et formation des nouveaux développeurs
- Maintenance et mise à niveau des flux existants
- Mise à niveau et standardisation de l'infrastructure technique, conception et réalisation des outils d'administration et de supervision Environnement Technique : Oracle Data Integrator, Oracle 10g, PostgreSQL, DB2/400, OpenLDAP, Java, Python, Eclipse Birt  Référent technique PHP :
- Maintenance des applications PHP existantes
- Préconisations techniques et réalisations des nouvelles applications PHP Environnement Technique : PHP5, Symfony 1.4, MySQL  Développement JavaEE :
- Maintenance des applications Java EE (médias web et Pocket PC)
- Optimisations des performances des applications
- Réalisation des correctifs et évolutifs Environnement Technique : JavaEE, Hibernate, Spring (MVC, WebFlow, LDAP...), Struts
- **Lhasa - Micro Service urban planning at scale** — https://github.com/ovh/lhasa
  List and map micro-services-based information system and observe how they interact. Track their activities, then gamify their continuous improvement.
- **Decathlon Activities** — https://activites.decathlon.fr
  API centric marketplace platform to connect sport users along sport practice and activities.
- **Kiprun Pacer** — https://pacer.kiprun.com/
  A new, smart, approach of road running training to avoid injuries and durably stay a performer.
- **Decathlon Outdoor**
- **Decathlon Coach**

## Publications

- Symfony Live - Feedback about microservices and reactive architecture (https://www.youtube.com/watch?v=wKa7Ee6Nsms)

## Languages

- French (native)
- English (professional_working)