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Rohan Iyer

Principal Engineer / Engineering Lead

Hyderabad, India • +91 90000 58217 • rohan.iyer@proton.me • linkedin.com/in/rohan-iyer-eng • github.com/rohaniyer

Portfolio: www.eliorexa.com/portfolio/full-stack-developer-senior

Professional Summary

Engineering leader and full-stack architect with 12 years building web platforms at scale. Sets technical direction across React/Next.js front ends and Node.js/PostgreSQL services, leads teams of 10–18 engineers, and ties architecture decisions to business outcomes — uptime, cost and revenue. Hired and grew teams, drove platform consolidation saving crores annually, and mentors engineers into senior and staff roles.

Skills

Leadership: Tech strategy & roadmap, Team building (10–18), Hiring & mentoring, Stakeholder alignment, Architecture review

Architecture: Distributed systems, Event-driven (Kafka), Microservices, Multi-region, Domain-driven design

Stack: TypeScript, React, Next.js, Node.js, GraphQL, PostgreSQL, Redis, Go

Platform: AWS, Kubernetes, Terraform, CI/CD, Observability (Datadog, OpenTelemetry)

Core Competencies

engineering leadership · software architecture · TypeScript · React · Next.js · Node.js · GraphQL · PostgreSQL · AWS · Kubernetes · CI/CD · system design · scale

Work Experience

Principal Engineer & Platform Lead — Northwind Commerce

Apr 2019 – Present

Hyderabad

  • Lead a 16-engineer platform org powering a storefront serving 1.2M daily users and peaks of 9,000 requests/second during sale events.
  • Architected a Next.js + Node/GraphQL migration off a legacy monolith, lifting checkout conversion 14% and cutting p99 latency 46%.
  • Consolidated 3 overlapping services and re-platformed onto Kubernetes, reducing infrastructure cost ~₹2.1 crore/year.
  • Set the engineering roadmap with product and the CTO; defined the SLO program that took availability from 99.5% to 99.95%.
  • Hired 11 engineers and grew 4 into senior/staff roles; established the architecture-review and on-call practices used company-wide.

Engineering Manager / Tech Lead — Cumulus Health

Jun 2015 – Mar 2019

Bengaluru

  • Led a team of 8 building a patient portal (React/Node/PostgreSQL) adopted by 30+ hospitals; scaled it to 400k patients.
  • Introduced CI/CD, automated testing and feature flags, cutting release incidents 60% and enabling weekly releases.

Senior Software Engineer — Earlier roles — Infosys, Zeta

2013 – 2015

India

  • Built JavaScript/Node services and React UIs across banking and payments products; promoted twice for delivery and technical leadership.

Education

B.Tech Computer Science

2013

National Institute of Technology (NIT) Warangal, Warangal

Certifications

  • AWS Certified Solutions Architect – Professional — Amazon Web Services (2021)
  • Certified Kubernetes Administrator (CKA) — CNCF (2020)

Selected Achievements

  • Cut infrastructure cost ~₹2.1 crore/year via service consolidation and Kubernetes re-platforming.
  • Raised platform availability from 99.5% to 99.95% by introducing an SLO + error-budget program.
  • Speaker, Rootconf 2023 — "Surviving 9,000 RPS sale traffic on a budget."
  • Mentor at a women-in-tech engineering fellowship; advises 2 early-stage startups on architecture.