Hello, I'm 👋
Sithum Imarsha
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FULL-STACKENGINEERING,OBSESSOVERCODEANDAI,
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Full Stack Engineering
End-to-end from database schema to animated UI. Every layer — API, auth, state, motion — built with intent.
AI & LangChain
RAG pipelines, vector search, and LLM integration shipped into production-grade SaaS.
Performance
Sub-100ms interactions and 60fps motion — engineered, not accidental.
SaaS Products
Launched two independent SaaS ventures from idea to paying customers — product, engineering, and growth.
- Subscription billing
- AI assistant (RAG)
- Multi-tenant auth
Cloud & DevOps
Dockerised workloads, CI/CD pipelines, and serverless functions deployed across AWS and Vercel.
Finance
Flow
Automated finance platform for freelancers, agencies, and SMBs. Features Fia — an AI assistant powered by RAG and LangChain that scans expenses and delivers real-time financial insights through a natural language interface.
Code
Class
1:1 online education platform connecting New Zealand learners with expert instructors. Engineered for performance and discoverability — achieving 100% SEO and 99% Lighthouse Performance in production.
Terry Whyte Facility Management
Dust Off Cleaning
Gaishu G
Metaversus Landing Page
Enigma Automotive
Tech Bheri
Oracle Finance
Platypus Eye Media
Frontend
Interfaces engineered to perform
Next.js
React
TypeScript
GSAP
Tailwind
Framer
Shadcn UI
Redux
TanStackBackend & Data
Scalable systems from schema to API
NestJS
Node.js
PostgreSQL
Prisma
Redis
Drizzle
GraphQL
Auth.js
Stripe
Supabase
Neon
ResendAI & Systems
Intelligence built into production
LangChainCloud & DevOps
Deployed and shipped globally
AWS
Cloudflare
Docker
DigitalOcean
Firebase
Kubernetes
GitHub Actions
Terraform
CoolifyOPEN TO