David User

I've built RAVEN at Lemon.io, a real-time AI coaching platform that processes live call audio and delivers context-aware coaching during conversations. I designed its low-latency, event-driven architecture using gRPC, WebSockets, streaming transcription, tone analysis, RAG, and LLM decisioning.

I'm independently building Zealix, an AI-powered career automation platform for resume generation, job matching, application automation, professional branding, and interview preparation. I take it from product idea through development, testing, iteration, and public launch.

At Turing Inc., I build blockchain products for security, identity, insurance, and digital asset inheritance while integrating LLM capabilities for language and automation tasks. My work spans scalable backends and user-facing applications across AI and blockchain systems.

Across 12+ years of software development, I've delivered web, mobile, blockchain, and distributed systems for clients including NIMASA, MTN Nigeria, Awoof Energy, and First Bank of Nigeria. I work across architecture, implementation, cloud deployment, optimisation, and real-time systems.