I am a results-driven Senior Full-Stack Engineer with over 6 years of experience building scalable web applications and independent SaaS ventures. My current focus is at the intersection of AI implementation and high-performance web architecture.
| Category | Technologies |
|---|---|
| AI & Systems | LangChain, RAG, Vector DBs (PGVector), LLM Integration, Prompt Engineering |
| Frontend | Next.js (App Router), TypeScript, React, GSAP, Framer Motion, Tailwind CSS |
| Backend | NestJS, Node.js, Polar, Auth.js, REST/GraphQL, PostgreSQL (Drizzle/Prisma), Redis |
| DevOps | AWS, DigitalOcean, Docker, CI/CD, Vercel, Firebase |
I specialize in creating digital products that don't just work, but excel. My recent projects focus on:
- Speed: 99% Lighthouse performance scores through optimized rendering.
- Global Scale: Architecting systems for international B2B/B2C markets (Germany/EU).
- Architecture: Migrating legacy infrastructures to modern, type-safe Next.js/TypeScript stacks.
- Website: sithumimarsha.com
- LinkedIn: linkedin.com/in/sithumdev
- Email: sithum.imarshadev@gmail.com
"Building the future of SaaS, one commit at a time."