Kah WeiLoo
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Kah Wei Loo

Kah WeiLoo

Software Engineer

Stay curious. The rest follows.

Kuala Lumpur, Malaysia
kahwei.loo.dev@gmail.com
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✈   travels
◉   with a camera

I build software — from backend systems to AI-powered products. I like learning how things work, and I believe good software is built with intention.

— KW

Outside of code, you'll probably find me hunting for good food or somewhere far from home with a camera.

— KW

Expertise

Skills & Technologies

Hover a key to explore

OpenAI / Anthropic API·LiteLLM·RAG Pipelines·pgvector / BM25 / RRF·Prompt Engineering·Function Calling·n8n·Hugging Face·React·Next.js·TypeScript·Tailwind CSS·jQuery·Three.js / GSAP·OpenAI / Anthropic API·LiteLLM·RAG Pipelines·pgvector / BM25 / RRF·Prompt Engineering·Function Calling·n8n·Hugging Face·React·Next.js·TypeScript·Tailwind CSS·jQuery·Three.js / GSAP·OpenAI / Anthropic API·LiteLLM·RAG Pipelines·pgvector / BM25 / RRF·Prompt Engineering·Function Calling·n8n·Hugging Face·React·Next.js·TypeScript·Tailwind CSS·jQuery·Three.js / GSAP·OpenAI / Anthropic API·LiteLLM·RAG Pipelines·pgvector / BM25 / RRF·Prompt Engineering·Function Calling·n8n·Hugging Face·React·Next.js·TypeScript·Tailwind CSS·jQuery·Three.js / GSAP·
Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·Python / FastAPI·PHP / Laravel·Node.js·PostgreSQL·MySQL·Docker·Git·Redis·Postman·
Portfolio

Featured
Projects

A selection of work I'm proud of — scroll to explore

01
AI-powered document intelligence

Doctify

A document intelligence SaaS platform with a 4-layer RAG pipeline, NL-to-SQL analytics, and a multi-provider AI gateway (OpenAI, Anthropic, Google) built on LiteLLM. Users can query documents in natural language, run analytics via plain-text SQL generation, and embed an AI chat widget on any site.

ReactFastAPILiteLLM
Code
02
Multi-agent entity research

DeepLens

A web-first entity research platform powered by LangGraph. An adaptive LLM supervisor routes between specialized agents for multi-angle web search, sentiment analysis, and structured report generation — producing comprehensive markdown reports with citations and charts.

LangGraphPythonOpenAI
Code
03
Interactive 3D keyboard configurator

Aurora Keyboard

An e-commerce site with an interactive 3D keyboard customizer. Users can preview keycap and switch colors in real-time, explore different keyboard layouts (60% ANSI, 87% TKL), and complete purchases via Stripe checkout.

Next.jsThree.jsReact Three Fiber
Code
04
Animated personal showcase

This Portfolio

The site you're looking at right now. Built with Next.js 16, featuring liquid text hover effects, a 3D keyboard visualization, GSAP-powered scroll animations, and Lenis smooth scrolling.

Next.jsThree.jsGSAP
Code
Journey

Experience &
Education

My journey through education and professional development

2025 - Present
Independent

Independent AI & Full-Stack Development

Self-Directed|Kuala Lumpur, Malaysia

After leaving Xeersoft, pursued an intensive period of self-directed learning and project development — completing a comprehensive AI engineering curriculum and building production-grade projects to transition into full-stack and AI development.

Completed AI engineering curriculum (L1-L4): Prompt Engineering, RAG, Agents, Fine-tuning
Built Doctify — a document intelligence platform with multi-provider AI gateway and RAG pipeline
Self-taught React, Next.js, Docker, and Three.js to expand into full-stack development
Mar 2023 - Mar 2025
Work Experience

Software Developer

Xeersoft Sdn Bhd|Kuala Lumpur, Malaysia

Developed and maintained backend features for SME accounting and inventory systems, supporting reporting, taxation, and daily operational workflows.

Developed LHDN e-Invoice API integration with tax validation and submission, serving 100+ SME clients
Built and maintained 15+ API endpoints bridging inventory and accounting systems with real-time data sync
Diagnosed and resolved critical production bugs in tax calculation logic and MySQL concurrency deadlocks
2019 - 2023
Education

Bachelor of Engineering in Software Engineering

Xiamen University Malaysia (XMUM)|Sepang, Malaysia

Graduated with a solid foundation in software engineering principles, algorithms, and modern development practices.

Studied software architecture, algorithms, and design patterns
Capstone: campus cafeteria pre-ordering and restaurant management system
Contact

Let's build
something great

Have a project in mind? I'm always excited to collaborate on interesting ideas and bring them to life.

Contact Information

kahwei.loo.dev@gmail.com
Download Resume

Connect With Me

Feel free to contact me