Freelancer profile translated to English.
Back to original languageAbout Antoine
Your team accelerated with AI… but the repo is becoming unstable, AI agents are crashing in production, and technical debt is mounting faster than deliveries.
I am an **AI & Web3 developer**. I transform AI code (vibecode) and agent prototypes into reliable, secure, production-ready systems.
What I concretely solve:
- Repo Rescue: Audit of a vibecoded codebase, fixing OWASP vulnerabilities, structuring, testing, documentation, skill transfer.
- AI Agents: Deployment of autonomous agents (WhatsApp, MCP, multi-LLM) in a secure Docker environment, with human-in-the-loop.
- Web3 / Traceability: Solidity smart contracts, mapping dashboards, Chainlink oracles — for EUDR, CSDDD, DSCSA/FMD compliance.
Recent Proofs:
- **ESA OCTAVE / Parametry UG**: 8 months of full-stack delivery (WhatsApp Baileys, Next.js/Leaflet, Solidity/Foundry smart contracts, VitePress) for organic cotton traceability.
- **Celestical Cloud**: 6 Docker stacks of AI agents (Nanobot, Hermes, MCP, multi-LLM), security hardening, WhatsApp integration.
- **Compositex**: Rescue of a vibecoded ERP — P0 security, SheetJS vendoring, 6 quality tickets, HTML onboarding, 46 mocha+supertest tests.
- **AI Novel Studio (ACADEE)**: beta-lead QA / E2E Playwright, Firestore, CSP, Stripe webhooks.
My competitive moat: 10+ years of experience in pharmacy + State Doctorate in Pharmacy. I don't just deliver code — I deliver code that holds up in regulated environments.
Daily Rate: €600–€700/day (anchor €650). Flat-rate offers for Rescue and AI agents. Full remote, US/EU time zone compatible.
Languages: French (native), English (C1 — daily work with the OCTAVE team), Spanish (bilingual — LATAM).
French
Native or bilingual
English
Fluent
Spanish
Native or bilingual
Remote only
Primarily works remotely
Experience
- CompositexCompositex ERP freelance - Code RescueRAW MATERIALS INDUSTRYJune 2026 - Today (2 months)Troyes, France• Repo rescue of a Node.js/Express vibecoded ERP: P0 security patch, SheetJS vendoring, 6 quality tickets QK-1..6, HTML onboarding.• Delivered release v1.5.0 with 46 mocha+supertest tests and architecture documentation (ARCHITECTURE_TECHNIQUE.md, CLAUDE.md).• Implementation of new features (personnel time tracking tools)
- ACADEE Group - IA & Web3AI Novel Studio QA / BetatestingCONSULTING AND AUDITSApril 2026 - May 2026 (1 month)Troyes, FranceRemote Full-stack QA & Beta-test Lead - "AI-NOVEL-STUDIO"(ainovelstudio.com)• Orchestrated comprehensive beta-testing program across 20 test cycles withsystematic regression testing using Playwright E2E suites• Led security hardening initiative: implemented Firestore security rules,Content-Security-Policy headers, webhook signature validation, and admin escalationprevention• Architected and executed global credit system refactoring: migrated from per-book topooled credit model, implemented admin-configurable dynamic pricing, and builtreal-time credit usage dashboard• Resolved critical production issues: auth race conditions in project creation, pricingcontext race conditions, and Stripe webhook integration for BOOST/EMPIRE credittop-ups• Optimized AI infrastructure: implemented multi-model Pro fallback cascade (Geminimodels), structured timeout budgets (120s), SSE keepalive for streaming, and anti-504retry mechanisms across 16 AI agent calls• Modernized backend infrastructure: migrated all Netlify Functions to v2 API,implemented hybrid SSE + keepalive strategy, and hardened Firebase configurationvalidation• Delivered comprehensive documentation: authored beta-test reports witharchitectural recommendations, Sprint A/B/C feature test reports, and adminreview/merge guides
- Celestical - The European Serverless CloudAI Agentic Dev & Lead Dev fullstack blockchainTECHFebruary 2026 - Today (6 months)Francfort-sur-le-Main, Germany• Designed and hardened 6+ production Docker stacks for AI agents (Nanobot, Hermes, OpenClaw) featuring multi-LLM, MCP, and WhatsApp integration.• Delivered the OCTAVE farmer onboarding agent (Nanobot + FastAPI + FSM + WhatsApp) in 3 languages for ESA/Parametry.• Led supply chain audits and security hardening (CONFIDENTIAL_PREFIX, prefix-only routes, isolated QR sidecar).• Stack: TypeScript, Node.js, Python/FastAPI, Docker, OpenRouter, Groq, Anthropic, MCP, Baileys.
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- State Doctorate in Pharmacy, PharmacyUniversité de Picardie Jules Verne (UPJV)2015Diplôme d'Etat de Docteur en Pharmacie, Pharmacie
- Learn to program with JavaScript, Programming / computer developer, generalOpenClassrooms2022Apprenez à programmer avec JavaScript, Programmation / développeur informatique, général
Certifications
- Leveraging Blockchain in Application DevelopmentAcadee I.A. & Web3 Academy2023
- Develop Full-Stack Applications in JavaScript with NextJS and ReactBelievemy2023