À propos de Fabien
13+ years of experience building scalable systems including 6 years at Microsoft.
I help companies bridge the gap between complex product requirements and high-performance execution. Whether you need a full-stack overhaul or a specialist to lead a critical migration, I deliver production-ready code that scales to millions of users.
Core Expertise
- End-to-End Frontend Leadership: Building robust applications from initial concept to final product using React and TypeScript.
- Robust Backends: Expert in Node.js, and Java, with a focus on high availability and high-throughput systems.
- Cloud & DevOps: Deep experience in Azure and AWS, containerization (Docker/K8s), and CI/CD pipelines
Anglais
Bilingue ou natif
Français
Bilingue ou natif
Accepte de travailler sur site
Pau (jusqu’à 50 km)
Expériences
- CALTOPOSenior Software Engineer / Frontend Leadjanvier 2021 - février 2024 (3 ans et 1 mois)United States• ● Led a full migration of the legacy mapping application to a modern React/TypeScript architecture, reducing production bugs by 35% and significantly improving maintainability and user experience.• ● Delivered major cross-platform features on web (TS/React), iOS (Swift), and Android (Java), ensuring a consistent interface for 500,000+ monthly active users.• ● Architected and implemented a full-stack overhaul of the billing and subscription system (React/TS + Java/Spring/Hibernate + Stripe), contributing to a 15% increase in ARPU.• ● Improved build and deployment pipelines (GitHub CI, esbuild, Gradle), reducing deployment times from 3 minutes to 20 seconds (-89%) and boosting developer productivity across a 10+ engineer team.• ● Mentored junior developers on backend and mobile development best practices, conducting code reviews and pair programming sessions to raise engineering quality.• ● Improved onboarding processes by documenting internal APIs, SDK behaviors, and dev workflows, reducing new engineer ramp-up time.
- MICROSOFT - AppCenterSenior Software Engineerseptembre 2017 - septembre 2020 (3 ans)Seattle, WA, USA• ● Built core areas of the AppCenter web frontend (Analytics, Settings, Push) using TypeScript, React, MobX, and Webpack for a platform serving 1M+ developers.• ● Contributed to a highly scalable push delivery system within Azure Notification Hub (C#, Kubernetes, Docker), supporting billions of push notifications monthly.• ● Improved and maintained critical Node.js REST APIs, achieving 99.99% uptime through enhanced reliability and performance tuning.
- MICROSOFT - Azure Mobile EngagementSenior Software Engineerseptembre 2014 - août 2017 (2 ans et 11 mois)Seattle, WA, USA• ● Led the migration of the Capptain platform to Microsoft Azure standards, completing the porting of 3 core services in under 9 months.• ● Migrated the internal message broker from RabbitMQ to Azure EventHub (Java), reaching throughput of 50,000 events/sec with improved reliability.• ● Executed a complex MySQL → Azure SQL database migration with zero customer downtime, ensuring data integrity at scale.
Recommandations
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Formations
- Engineering Degree (MSc)INSA2008Engineering Degree (MSc)
- Degree in Technology (BSc)IUT2005Degree in Technology (BSc)