Portrait of Sithu Nyein, web and AI developer in Yangon, MyanmarBuilding AI apps in Yangon

Sithu Nyein

Web & AI DeveloperYangon, Myanmar

I build production TypeScript and Next.js apps with LLM APIs, AI agents, and workflow automation. Recent public work includes Arb Guardian, PixelBrief, and Casper AI Portfolio Agent. I also ship on Superteam, DoraHacks, and HackQuest. Open to full-time roles in Yangon and remote engineering work.

Recent public proof · AI agents · TypeScript / Next.js · Zerion honorable mention

Selected Work

03 case studies

Public case studies with live demos and repositories focused on AI apps, agents, and TypeScript product shipping.

01

Arb Guardian

Officer AI that reviews spends, blocks scams, and freezes guild banks.

Officer AI · TypeScript

Arb Guardian protects gaming team treasuries. I built the Officer AI review flow plus spend controls so teams can catch scam payouts and freeze funds before damage spreads. Live on Arbitrum and Robinhood Chain.

  • Live at arb-guardian.vercel.app
  • Officer AI reviews spends and flags scam risk
  • Freeze controls for guild bank protection
TypeScriptAI AgentsNext.jsArbitrumAPIs
02

PixelBrief

AI agent that turns one prompt into a full brand kit.

HackQuest · OKX.AI

PixelBrief is a production AI agent product. One prompt returns logo SVG, palette, type, and social assets. I built the agent workflow, structured outputs, and web product so creative jobs run end to end.

  • Built for HackQuest OKX.AI Genesis Hackathon
  • Live at pixelbrief.tech
  • One prompt → logo, palette, type, social pack
TypeScriptAI AgentsPromptingNext.jsAPIs
03

Casper AI Portfolio Agent

Autonomous AI agent that analyzes holdings and acts with proofs.

AI Agent

An autonomous portfolio agent that reads holdings, runs LLM analysis with live RWA context, and records action proofs. I built the TypeScript agent loop, tool calls, and explorer-backed settlement path.

  • Live at casper-ai-portfolio-agent.vercel.app
  • LLM analysis with tool calls and live context
  • Explorer-backed action proofs
TypeScriptLLMAI AgentsAPIsNext.js

Research Notes

All writing

Early research direction: agent systems that can spend on-chain without leaking strategy, plus tooling that makes Solana failures diagnosable. These notes are public drafts, not peer-reviewed papers.

Open Source

All repositories

Currently

  • BSCS at University of the People
  • Zerion honorable mention for Consensus
  • Shipping on Superteam, DoraHacks & HackQuest
  • Open to remote / full-time engineering roles
  • Aiming for a fully funded MSCS / PhD

Education

  • B.S. Computer ScienceUniversity of the People · 2026-2028 · ongoing
  • B.A. EnglishPathein University · 2020-2026Took a 2-year gap due to the COVID pandemic and military coup.
  • Next target: funded MSCS or PhD in blockchain systems, agent infrastructure, and security.

Stack

TypeScriptJavaScriptNext.jsReactNode.jsAI AgentsPrompt EngineeringREST APIsPythonGitPostgreSQL

About me

I am Sithu Nyein, a web and AI developer based in Yangon, Myanmar. I started with an English degree at Pathein University, then taught myself to ship software. I am now studying Computer Science at the University of the People while I keep building in public on GitHub.

Most of my recent work lives in public repos. I ship AI products and bounty builds for Superteam, DoraHacks, and HackQuest. Flagship case studies: Arb Guardian (Officer AI for guild bank protection), PixelBrief (HackQuest AI brand-kit agent), and Casper AI Portfolio Agent. Supporting work includes ShiftLedger, CROO Contractor, Cipher Sign, and Consensus (Zerion honorable mention).

My day-to-day stack is TypeScript, JavaScript, Next.js, Node.js, and Python. I care about AI agents, prompt workflows, clean APIs, and products that hold up outside the demo.

I am open to full-time roles in Yangon and remote engineering work. Longer term I want a funded MSCS or PhD focused on agent systems and secure software. Until then I keep shipping and putting the work where people can review it.

Outside of code I walk a lot, listen to music, read, and keep a quiet routine that lets me focus.

Let's build something.

Open to full-time Yangon roles and remote AI / web engineering work. Email or LinkedIn is the fastest way to reach me.