Freelancer profile translated to English.
Back to original languageAbout Jonathan
Backend developer with 15+ years of experience, I design AI systems in production — not POCs.
🔢 Measured results:
→ 5.8x productivity in 4 months thanks to AI-augmented development
→ 200+ PRs merged in 6 weeks (graphql-api, Eurosport)
→ 7.5 PRs/day in February 2026, vs 1.3 before AI
→ 89% of AI-generated PRs merged without modification
→ 99.9% availability on infrastructure serving millions of users (Olympics, sports events)
🛠️ What I do:
— High-performance GraphQL architecture (Apollo Server, Schema Stitching)
— AWS Infrastructure (ECS, DynamoDB, ElastiCache, Lambda, CloudFront)
— Generative AI integration in production (AWS Bedrock, Google GenAI, Claude Code)
— Autonomous AI Agents: error monitoring, fix PR creation, automatic review
— Automated CI/CD pipeline, proactive monitoring (NewRelic, Sentry, Apollo Studio)
🎯 My approach:
I don't replace developers with AI — I augment their delivery capacity. I build workflows where
AI knows your codebase, your conventions, and your stack to produce code that passes review.
👉 Available for missions: backend architecture, AI integration, setting up AI-augmented workflows,
training teams in AI-assisted development.
🚀 Founder of Tecodia — supporting dev teams towards AI-Augmented Development.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Paris (up to 15km)
Experience
- EurosportLead Backend AI-Augmented — Node.js / GraphQL / AWSSPORTSNovember 2019 - Today (6 years and 7 months)Paris, FranceLead backend on Eurosport's digital platforms (Warner Bros. Discovery), serving millions of users during the Olympics and major sporting events.Key results:→ 5.8x productivity increase thanks to AI-augmented development (1.3 → 7.5 PRs/day)→ 200+ PRs merged in 6 weeks on graphql-api→ 89% of AI-generated PRs merged without modification→ 99.9% availability, deployments in < 10 minWhat I built:● High-performance GraphQL architecture (Apollo Server, Schema Stitching) for Eurosport apps● AWS Infrastructure (ECS, ElastiCache, DynamoDB, WAF, CodeDeploy) managed in Terraform● Automated CI/CD pipeline (GitHub Actions) with proactive monitoring (NewRelic, Sentry, Apollo Studio)● AI agent system integrated into the workflow: error monitoring, automatic fix PRs, assisted review● Technical leadership for the backend team: code reviews, mentoring, architectureStack: Node.js · TypeScript · GraphQL · Apollo Server · AWS (ECS, DynamoDB, ElastiCache, CloudFront) · Terraform ·Redis · GitHub Actions · NewRelic · Claude Code · AI Agents
- MemorizerLead Backend Developer & DevOps at MemorizerSOCIAL NETWORKSNovember 2019 - Today (6 years and 7 months)Paris, FranceResponsible for backend architecture and generative AI integration at Memorizer, a spaced repetition learning application.What I built:● GraphQL API (Apollo Server) connecting all business services● AWS Bedrock and Google GenAI integration for educational content generation (summaries, quizzes, auto-generated flashcards)● Semantic search via OpenSearch to connect knowledge● Complete AWS infrastructure (ECS, DynamoDB, S3, RDS) with PostgreSQL and Redis● CI/CD pipeline with zero-downtime automated deploymentsGenerative AI is at the core of the product: not a POC, but AI running in front of real users.Stack: Node.js · TypeScript · GraphQL · Apollo Server · AWS (ECS, DynamoDB, S3) · PostgreSQL · Redis · OpenSearch ·AWS Bedrock · Google GenAI · GitHub Actions
- Edenred SALead Backend DeveloperENERGY AND UTILITIESOctober 2023 - April 2024 (6 months)Issy-les-Moulineaux, FranceDesign and implementation of the backend API architecture (GraphQL & REST) enabling communication between electric vehicle charging station services.● Development of a centralized API in Node.js / TypeScript, managing asynchronous flows and interoperability between services● Design of a modular data exchange system between the supervision software and the charging stations● Implementation of cloud infrastructure on Microsoft Azure (App Services, API Management, Azure DevOps, monitoring)● Continuous integration / automated deployment via Azure DevOps Pipelines● Contribution to defining microservice architecture standards in the IoT contextTechnical environment: Node.js, TypeScript, GraphQL, REST, Azure App Services, API Management, Azure DevOps, CI/CD, microservices.
Reviews
L
Laure
Pricing Pact
Reviewed on 1/6/2023
Jonathan is very professional and masters his subject. It is extremely valuable to work with such a competent and gifted person. We highly recommend him!
Mathieu
La Haute Société
Reviewed on 7/30/2021
An expert in his field, Jonathan was a real added value. He quickly grasped the need and was full of advice and suggestions. A pleasure to work with Jonathan.
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Education
- Engineer in Multimedia and Information TechnologyEpita2011
Certifications
- Google Cloud Certified - Associate Cloud EngineerGoogle Paris2019