Portfolio — 2026 Open to internships
Year 1 Computer Science at Western University. I build full-stack systems that meet real money, real servers and real people — from ABA payment rails to a local Khmer dubbing studio.
Five builds that shipped, broke, got fixed and stayed up. Live links where they exist — everything else is labelled honestly.
Fintech — Payments
A real-money ABA PayWay checkout: KHQR generation, HMAC-signed sessions, subscription billing and webhook delivery on Cloudflare Workers + D1. Built to fail closed — server-confirmed payments only.
View live / aba.ahnajak.cyouPlatform — Game hosting
A game-hosting storefront and Pterodactyl panel: KHQR product checkout, automatic stock across SG nodes, an AI support agent that answers tickets, and Telegram billing. Real servers, real invoices.
View live / kesorcloud.camAI Systems — Autonomous Infrastructure
An autonomous AI Minecraft game server operator & telemetry engine. Monitors real-time CPU/RAM metrics, executes Pterodactyl daemon diagnostics, auto-restarts unresponsive nodes, and serves natural language command execution via Cloudflare Workers + D1 + OmniRoute AI. Self-healing server ops.
View live / axc.ahnajak.techAI — Media tooling
A local Khmer dubbing studio. Splits dialogue from music, transcribes with faster-whisper, diarises speakers, translates, re-voices each character and fits every line back into its original timing slot.
Local tool / no public buildCommerce — Game top-up
A game top-up storefront for Cambodia: catalogue, cart and KHQR checkout, with orders fulfilled automatically through G2Bulk. React front end, Express API, MySQL. Built end to end — jennstore.cyou goes live once the domain is pointed.
Pre-launch / jennstore.cyouOpen source — Public repos
The public workbench: experiments, small tools and whatever I'm learning in public. Pulled live from the GitHub API when this page loads — no screenshot, no invented contribution graph.
Open profile / @lengsonmeng-blazerYear 1 at Western University, Main Campus. Foundations first: programming, data structures, algorithms, calculus and discrete math.
Rebuild the primitive instead of importing it — memory, growth and wraparound.
Measure, don't guess. Time five sorts against real input sizes and plot the curve.
Normalise to 3NF, then write the exact queries the UI needs. No ORM escape hatch.
BFS and DFS on a canvas grid with step controls, so the frontier is visible.
Repository data is pulled live from the GitHub API when the page loads. If the API is rate-limited, the last known public list stays visible.
Source — api.github.com / 30 min cache
The short version: I learn by shipping, then reading the docs I should have read first.
I'd rather ship something small that works than describe something large that doesn't.
I'm Leng Son Meng, a first-year Computer Science student at Western University in Phnom Penh. Most of what I know came from building things that had to survive contact with real users: a payment platform that settles real ABA transactions, a game-hosting business with real servers, and a local dubbing pipeline that turns any video into Khmer speech.
I care about the unglamorous parts — signature checks, idempotent activation, honest error states, and the difference between “it renders” and “it works”. Right now I'm looking for an internship where I can learn from people who have shipped more than I have.
A config isn't done until the program that reads it has run.
Read the logs, find the call site, then change one thing.
Server-side confirmation. Never trust a client-supplied amount.
If it isn't documented, it didn't happen — future me agrees.