Marvellous Ujebor, a frontend engineer shipping AI-integrated products end-to-end. RAG pipelines, voice agents, multi-tenant platforms, and the interfaces that make them feel inevitable.
Marvellous Ujebor / Frontend Engineer · AI & Full-Stack
Self-taught frontend developer moved into production — now shipping software end-to-end across four countries. Core expertise in production frontends integrated with AI backends: RAG, LLM tool-use, voice agents and multi-tenant platforms.
I work with the modern stack — React, Next.js, TypeScript, Three.js, Framer Motion — and the AI stack — Anthropic, OpenAI, Gemini Live, VAPI, Google ADK, LangChain, Vector DBs. From design to DevOps to Linux admin.
A live AI job-research agent. Users paste a job URL; the agent extracts role requirements, compensation, growth potential and company culture via Claude + Llama 3.3 on Cloudflare Workers AI. Serverless backend on Durable Objects for stateful chat — no cold starts, sub-second responses over WebSocket.
Solo-architected production e-commerce — 20+ SKUs, multi-currency (AUD/USD/GBP/EUR/NGN) live FX, hybrid cart, Cloudinary AVIF/WebP CDN, admin panel. Embedded 'Amanda' AI shopping assistant via Claude tool-use.
Frontend UI/UX architecture for a multi-tenant AI chatbot platform. Embeddable widget system with real-time multi-channel inbox — email, SMS, social — for B2B and B2C active users.
Took a Webflow stub to a hardcoded corporate site with Three.js interactions — solo design, dev and DevOps. Shifted customer perception into a trustworthy enterprise; drove measurable revenue.
Frontend architecture for a multi-tenant AI chatbot — B2B & B2C — with an embeddable widget and real-time multi-channel inbox (email, SMS, social). Rebuilt the corporate site from a Webflow stub into a hardcoded Three.js experience, solo. Optimized RAG response 3s → 0.5s (83%) via vector-DB tuning. Built an HTML email generator that saved 4+ hours daily.
RAG pipelines, LLM tool-use, voice agents, multi-tenant AI systems. Anthropic, OpenAI, Gemini Live, VAPI, Google ADK, LangChain, Vector DBs and N8N.
My AI twin has read my CV, every project doc, my rates and my availability. Ask it about timelines, stack choices, or whether I'm a fit for the thing you're trying to ship.