Hamza Kyamanywa

Technical Founder, CTO & Senior AI Product Engineer

Seoul, South Korea | untilhamza@gmail.com | (+82) 10-9899-9793 | linkedin.com/in/untilhamza | github.com/untilhamza

Professional Summary

Technical founder, CTO, and senior AI product engineer focused on HoverNotes and Quest, with 4+ years building AI-powered education, productivity, travel, and workflow systems. Founded HoverNotes, now over $10K/month revenue with around 20K Chrome/Edge installs, and co-founded Quest as CTO, leading a 3-person team building safari quotation software and PDF infrastructure. Also contracted with xAI Human Data on software-engineering model evaluation. Strong in TypeScript/React/Next.js, Python/FastAPI, browser extensions, LLM systems, payments, analytics, document generation, and production reliability. Fluent in Korean and English.

Technical Skills

AI/LLM: OpenAI API, Whisper, LangChain, LangGraph, RAG, vector search, prompt engineering, multimodal AI workflows

Frontend/Product: Next.js, React, TypeScript, React Native, Tailwind CSS, Lexical, Chrome/Edge extensions, Obsidian/local-first workflows

Backend/Data: Python, FastAPI, Node.js, Express, PostgreSQL, Supabase, Drizzle ORM, MongoDB, Redis

Infrastructure/Ops: AWS Lambda, S3, EventBridge, Docker, Vercel, Cloudflare R2, Hetzner, CI/CD, PostHog, Sentry

Business Systems: Stripe, Razorpay, webhooks, subscriptions, trials, pricing, credits, PDF/document generation

Languages: Korean (TOPIK 5), English, Luganda

Professional Experience

Technical Founder & CEO

HoverNotes | AI video note-taking SaaS | Remote / Seoul | Jul 2025 - Present

CTO & Co-founder

Quest | Safari quotation platform and PDF infrastructure | Remote | 2026 - Present

Software Engineering Specialist, Human Data / AI Tutor - Software Engineering (Expert)

xAI / Remote Technology Services | Contract | Remote | May 2026 - Present

Senior Full Stack Engineer / Freelance Technical Lead

GoGymi / TexTutor | AI EdTech SaaS | Remote, Switzerland | Jan 2025 - Sep 2025

AI Engineer & Team Lead

Bebridge Inc. / Slid | 50K+ MAU EdTech platform | Seoul, South Korea | Jan 2024 - Jun 2025

Senior Software Engineer / Full Stack Engineer

Bebridge Inc. / Slid | Seoul, South Korea | Jun 2022 - Dec 2023

Open Source & Community

Education

Korea University, Seoul: B.S. Electrical and Electronics Engineering, Mar 2019 - Feb 2023, GPA 4.02/4.5. Magna Cum Laude; Global Korea Scholarship and Ugandan Government Scholarship recipient.

Co-authored "Responsible Music Genre Classification using Interpretable Model-agnostic Visual Explainers," Springer Nature Computer Science.