Available · Q3 2026

Crafting
intelligent
systems.

I am Sandun Gunathilaka, a Full Stack Software Engineer and Undergraduate Student with a passion for building high-performance, agentic-first applications. My work sits at the intersection of robust backend architecture and precision UI/UX design. I specialize in Python, Next.js, FastAPI, and PostgreSQL, focusing on creating scalable systems that solve complex problems with clean, efficient code.

engineer.ts
const engineer = {
  name:  "Sandun",
  role:  "Full-Stack",
  stack: ["Next.js", "FastAPI"],
  focus: "Scale + UX",
}

async ship() {
  return deploy(engineer)
}
AI/ML
Postgres
TypeScript
Claude API
01 — About

Engineer.
Builder.
Strategist.

I'm a full-stack software engineer and Computer Science student at Cardiff Metropolitan University, based in Colombo, Sri Lanka. I build complete digital products end-to-end — from architecture through production deployment — with obsessive attention to craft.

From AI-powered platforms to e-commerce engines, I operate across the full stack: designing systems, shipping features, and always thinking in products. My focus lies at the intersection of robust backend logic and highly aesthetic frontends.

Cardiff Metropolitan Univ.Colombo, Sri LankaOpen to RemoteProduct Thinker
2
Production Deployments
10+
Technologies Mastered
1yr
Year of Experience
Ideas in the Pipeline
02 — Selected Work

Things I've
Built.

03 — Expertise

The Stack.

// Frontend Architecture
TypeScriptExpert
React & Next.jsExpert
Tailwind CSSAdvanced
Motion / GSAPProficient
Three.js / WebGLLearning
// Backend & Systems
Node.jsExpert
PythonAdvanced
FastAPIAdvanced
NestJSProficient
RESTful APIsExpert
// Data & Infrastructure
PostgreSQLAdvanced
MongoDBProficient
DockerProficient
Vercel / RailwayAdvanced
Claude APIExpert
// Practice & Craft
System DesignAdvanced
QA EngineeringAdvanced
Brand & ProductProficient
Solo DeploymentExpert
AI IntegrationExpert
04 — Contact

Let's build
something remarkable.

Open to staff-eng collaborations, full-stack contracts, and ambitious product builds. If you're shipping something that demands craft, I'd love to hear about it.

© 2026 Sandun Gunathilaka — Engineered solo.All systems online · Colombo, LK