Rohan Iyer
Principal Engineer / Engineering Lead
Principal engineer · full-stack architecture & teams at 1.2M-user scale
About
I lead engineering orgs and design systems that stay fast and cheap under real load. Twelve years across commerce, health and fintech — currently running a 16-engineer platform behind a storefront that peaks at 9,000 requests a second. I measure success in availability, conversion and the careers I help grow.
1.2M
Daily users on the platform
₹2.1Cr
Annual infra cost cut
16
Engineers led
Selected work
+14% conversion
Storefront Re-platform
Monolith → Next.js + GraphQL; +14% checkout.
Next.jsGraphQLKubernetes
99.95% uptime
SLO Program
99.5% → 99.95% availability via error budgets.
ReliabilityObservability
400k patients
Patient Portal
React/Node portal across 30+ hospitals.
ReactPostgreSQL
3D Portfolio
This WebGL site, built on Eliorexa.
three.jsReact
Skills & tools
Architecture
TypeScript
React
Next.js
Node.js
GraphQL
PostgreSQL
AWS
Kubernetes
Leadership
Let's build something
Rohan is open to the right opportunity. Reach out — or grab the résumé.