Freelancer profile translated to English.
Back to original languageAbout Northon
Full-stack developer specializing in Next.js, Node.js, and React Native, I design web and mobile applications end-to-end — from backend architecture to deployment.
My scope: REST APIs, databases (PostgreSQL, Redis), real-time (WebSocket, MQTT), payment integrations (Stripe, Mobile Money), cross-platform mobile applications. I adapt to projects from scratch as well as existing codebases.
In parallel, I practice offensive cybersecurity through bug bounty (HackerOne, Bugcrowd), which brings me security rigor applied to each project.
Have a web, mobile, or API project to build? Let's talk.
French
Native or bilingual
English
Fluent
Can work on-site
Mulhouse (up to 50km)
Experience
- Moayet KOFFIDevTRANSPORTATIONJanuary 2026 - Today (7 months)Abidjan, Côte d’IvoireGPS Tracker Application — Sub-Saharan Africa – PresentOngoing personal project• Full-stack design of a geolocation mobile app (React Native + Node.js/Fastify)• Hybrid proprietary BLE + GSM/LTE hardware with MQTT broker and PostgreSQL/PostGIS• Mobile Money payment integration via CinetPay (Orange, MTN, Wave)• Offline-first architecture adapted to African network constraints (2G/3G)Ticketing Platform — Ivory CoastPersonal project• Complete NestJS / Next.js / PostgreSQL / Docker platform with Mobile Money integrations• QR code ticketing, agent management, anti-fraud system• React Native mobile application with CinetPay payment (Orange Money, MTN, Wave)AnodosFlow — Marketing automationPersonal project• SaaS platform Next.js / Node.js / Prisma / PostgreSQL• Drag-and-drop workflow builder with WorkflowExecutorService
- BUG BOUNTYSecurity ResearcherINTERNET OF THINGS (IOT)January 2026 - Today (7 months)Mulhouse, FranceHackerOne (lenrt) & Bugcrowd• • Critical P1 discovery: unauthenticated AWS STS credentials exposure on Moovit (Bugcrowd)• • iOS static analysis (Mint Mobile): hardcoded API keys Braze, Branch, Amplitude, Sentry• • Active programs: Banco Plata (DOM XSS, OTP endpoint analysis), X/Twitter, Shopify• • Environment: Burp Suite, ffuf, sqlmap, jwt_tool, PortSwigger Web Academy
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Education
- Bachelor Computer ScienceBordeaux Ynov-Campus2025Computer science
- Engineering DegreeENSISA — École Nationale Supérieure d'Ingénieurs Sud AlsaceDiplôme d'ingénieur