Notes

Writing by Rohan P. Suresh

Thoughts on software architecture, development practices, and lessons learned from building production applications.

Building a Portfolio as an Engineering Lab

Why I rebuilt my portfolio from scratch without a CMS, and how I turned it into a verifiable system to showcase architecture, design, and continuous integration.

June 12, 20263 min read

Shipping the Boring Half: AI Code Reviewer, Phase 1 Foundations

What 'production-grade scaffolding' actually looks like for an AI app in 2026 — monorepo, project references, env-gated observability, and a streaming endpoint with a placeholder agent — before any retrieval or tool use lands.

May 15, 202611 min read

Building an AI Code Reviewer That Actually Reads Your Code

How I'm building an AI agent that reviews GitHub pull requests with hybrid retrieval, tool use, and real evals — without LangChain or framework glue.

May 10, 202610 min read

Mobile

Building Cross-Platform Apps: React Native vs. Native Development in 2026

An honest comparison of React Native and native development based on shipping production apps with both approaches, covering performance, developer experience, and total cost.

February 18, 20268 min read

Architecture

From Monolith to Microservices: Lessons from a Healthcare Platform Migration

Practical lessons learned migrating a large healthcare monolith to microservices, including what we got wrong, what worked, and when you should avoid microservices entirely.

October 20, 20258 min read

Integrating AI Voice Agents with Twilio: A Technical Deep Dive

How I built an AI-powered voice agent using Twilio, OpenAI's Whisper for transcription, and GPT-4 for conversational responses, with sub-second latency.

September 12, 20258 min read

Architecture

The Architecture Behind a Multi-Tenant SaaS Platform

A walkthrough of the technical decisions behind building a multi-tenant SaaS platform, from database isolation strategies to tenant-aware middleware.

June 22, 20258 min read

Accessibility

Building Accessible Applications: Going Beyond WCAG Compliance

Why treating accessibility as a checkbox exercise fails your users, and practical strategies for building genuinely inclusive applications from the ground up.

February 10, 202510 min read