01
Singapore
May 2026 – Present
Software Engineer Intern
Building agent infra, search, and knowledge systems for Sai, Simular's computer‑use agent.
PythonTypeScriptFastAPIGCPAI Agents
Hello world, my name is
NathanKeith Poernama
I'm a final-year Computer Science student at SUTD in Singapore, graduating May 2027. I've spent three internships building full-stack products at a computer-use AI startup and two major consulting firms.
I've been doing competitive programming in C++ since high school, and my focus is low-level work: anything involving optimization and algorithms!
Where I've shipped.
02
UC Davis, California
Jan 2026 – Mar 2026
Software Engineer
Joined the 8-person team behind RoomU, a roommate-finding app for 40,000+ UC Davis students, and merged my first PR in week one.
React NativeTypeScriptHonoDrizzle
03
Singapore
Sep 2025 – Dec 2025
AI Research & Innovation Intern
Tackled 4 projects across robotics, full-stack, and applied AI: a Misty II robot, a booking system, an AI video avatar, and a RAG chatbot.
PyTorchLangChainReactNode.jsPostgreSQL
04
Jakarta, Indonesia
Jun 2024 – Aug 2024
Frontend Engineer Intern
Learned React from scratch, then fixed shared UI in REGLA IFRS 9, NTT's compliance platform for banks.
ReactNext.jsTypeScriptTailwind CSS
05
Jakarta, Indonesia
Jun 2023 – Feb 2025
Competitive Programming Coach (C++ & Python)
Spent 300+ hours at Kokocoder coaching high-schoolers for Indonesia's National Olympiad in Informatics.
C++PythonData Structures & Algorithms
Where I've placed.
Competitive Programming Competitions
ICPC Asia Regional
Dec 2025 · Manila
ICPC Regionals
First to Solve Award
Got the first balloon before anyone else did, but the folding problem keeps me up at night sometimes.
NOI/OSN Informatics
Oct 2022 · Indonesia
OSN / NOI
Gold Medalist (4th/20,877)
The 2am Codeforces era ended here, yet it turned out to be good for more than medals.
Meta Hacker Cup
2023, 2024, 2025
Meta Hacker Cup
Round 2 ×3 · best 1,087th
Stayed up until 5 AM for 3 consecutive years just to get a T‑shirt. Worth it.
IOI Selection
June 2023 · Indonesia
IOI Selection
Final 14
Top 4 go on to be the national IOI team for Indonesia that year.
TCS CodeVita
2025 · Global
TCS CodeVita
Ranked 201/537,000+
Officially recognized by Guinness World Records as the largest online programming competition.
click a polaroid to flip it
What I've dropped.
SMRT Digital Twin
A live 3D train that points at the part that needs fixing, and explains why
PythonTypeScriptReactThree.jsFastAPIDockerGCP
Tappin' Queen
A memory game built from raw logic gates, with no processor on the board
FPGALucid HDLDigital LogicComputer Architecture
Cut the Crap
A browser extension that rewrites the corporate bloat on any page, or piles more on 💩
JavaScriptChrome ExtensionManifest V3LLM APIs
RoomU
Roommate-finding app for 40,000+ UC Davis students
TypeScriptReact NativeiOSPostgreSQLDockerHono
Ascenda Hotel Booking
Hotel search, map, and Stripe checkout for a travel loyalty platform, using Ascenda's API
TypeScriptReactNode.jsExpressMySQLVitestAWS
TROC #33
Problems, tests, and editorials for an open programming contest with 320 entrants
C++TCFrameData Structures & AlgorithmsCompetitive Programming
What I build with.
AI / ML
PyTorch
LangChain
Vertex AI ADK
RAG
RAG
EMB
Embeddings
OpenCV
Languages
C / C++
Python
TS / JS
Java
SQL
HDL
Verilog / Lucid
ASM
Assembly
Web & Databases
React
Next.js
Three.js
FastAPI
Node / Express
PostgreSQL
MySQL
Firestore
Meilisearch
Practices & Tools
Git / GitHub
GitHub Actions
Docker
GCP
AWS
Linux
Vitest
Claude Code
Cursor
What's next.
kith /kɪθ/
kith: a nickname, from the middle name Keith. Nathan Keith Poernama.© Nathan Keith Poernama
Designed and built with Next.js and TypeScript, with Claude Code and Cursor as pair programmers.