Elango Ponnusamy
Full Stack Engineer & Software Architect based in Tamil Nadu, India
Over the past five years I have designed, built, and shipped production web applications for startups and established teams — from customer-facing React interfaces to Node.js APIs, Supabase-backed data layers, and cloud deployments on AWS and Vercel.
What I build
My work centers on three principles: write code that is easy to maintain, ship features that perform under real traffic, and design interfaces that feel fast and intentional. I specialize in the React and Next.js ecosystem, TypeScript, REST and GraphQL APIs, PostgreSQL, and modern CSS.
Whether the task is a greenfield SaaS product, a legacy migration, or a performance audit, I focus on measurable outcomes — shorter load times, cleaner architecture, and fewer production incidents.
This site
On elangodev.com you will find my professional portfolio with work history and education, a technical blog covering React patterns, Next.js deployment, database design, and web performance, an engineering handbook with structured explanations of modern web concepts, and pages describing my consulting and development services. I also publish open-source packages on NPM and maintain transparent editorial standards for all published content.
Engineering principles
1. Maintainable architecture
I favor clear module boundaries, typed contracts, and patterns teams can extend without tribal knowledge. Simpler systems stay reliable as requirements change.
2. Measured performance
Core Web Vitals, server timing, and real user signals guide optimization — not guesswork. Improvements target LCP, INP, and TTFB with before/after evidence.
3. Accessible by default
Semantic HTML, keyboard paths, and contrast are part of the build checklist. Accessibility is a requirement for shipping, not a later polish pass.
Professional focus
Full-stack product engineering with React/Next.js frontends, Node.js APIs, PostgreSQL, Supabase, and AWS/Vercel deployments. Available for full-time roles, contract work, and technical consulting.
Education & growth
Continuous learning through production projects and published guides. I document what actually worked — stack trade-offs, performance fixes, and architectural decisions — so other engineers can reuse the lessons.
Technical expertise
Open education and open source
Beyond client work, I publish long-form engineering guides and maintain small NPM packages that solve real problems I hit in production. The goal is practical material other developers can use immediately — not marketing copy.
Editorial standards
Every article and handbook entry is written from hands-on project experience. Ads, when shown, are clearly separated from editorial content and never interrupt reading flow. User privacy and page performance come first. See the editorial policy and privacy policy.
Free learning resources
The Technical Handbook, blog, and testing guides are free resources for anyone learning web performance, API design, and full-stack patterns. For project inquiries, use the contact page.