Hi, I'm Jean-Vincent 👋

Accomplished Senior Software Engineer with 10 years of experience in full-stack development. Proficient in JavaScript, ReactJS, NodeJS, TypeScript, C#/.NET, PHP/Laravel, Flutter, DevOps, and Cloud Platforms. Strong leadership in cross-functional teams, Passionate about clean architecture, developer experience, and delivering high-quality code.

• 🚀 Specialized in building component libraries, micro-frontends, and developer tooling that ship fast and scale well.
  
• 💡 Proven track record: 30-45% performance gains, 99.9% uptime in payment systems, and mentoring 5+ developers.

🎯 What I Do Best

Frontend Architecture

• Built shared component libraries with Storybook that power multiple production apps.
• Reduced page load times by 30% through performance optimization (OpenTelemetry + Datadog monitoring).
• Migrated 15,000+ LOC legacy codebases to TypeScript, cutting runtime bugs by 40%.
• Architected micro-frontends with clean architecture principles, improving code maintainability by 35%.

Backend & Infrastructure

• Optimized .NET APIs with async programming and DI, slashing response times by 40%.
• Integrated Kafka event pipelines, reducing API latency by 45% and handling 3× traffic spikes.
• Built Node.js/PostgreSQL backends processing thousands of daily transactions with 99.9% success rates.
• Designed vertical slice architecture and modular monoliths, accelerating feature delivery by 30%

DevOps & Quality

• Set up CI/CD pipelines with visual regression tests, cutting post-release hotfixes by 70%.
• Authored reusable testing foundations (Jest, Cypress) that boosted team productivity by 30%.
• Implemented security hardening (CSP, input sanitization), reducing vulnerabilities by 80%.

💻 Tech Stack

Frontend

Backend & APIs

Databases

DevOps & Cloud

Testing & Quality

Mobile

💡 How I Build

• Philosophy: "Ship code that's readable, maintainable, and measurably fast."
• Strengths:
  • Clean Architecture & Domain-Driven Design
  • Data-driven optimization (OpenTelemetry, Datadog, NewRelic)
  • Test-first development with 100% coverage on critical paths
  • Cross-functional leadership and mentoring

🌐 Let's Connect