roohan.dev
VOL. MMXXVI · PHX · EST. 1996
Field Work No. 03 — The Portfolio 3 Cases
Selected Work

Three dispatches from the stack.

Case 01 · Personal · Go · AWS

I. This website, written in Go

A personal portfolio served via Go's html/template, a thin Go router, and just enough client-side JavaScript.

Go
Server-Side
CI/CD
Auto-Deploy
5
AWS Services
~$1/mo
Infra Cost

Thank you for visiting my little digital shack. I hope you'll find joy in the little things I've worked on around my website.

The backend is a Go server rendering html/templates at startup, sitting behind nginx with TLS via Let's Encrypt — Dockerized in a multi-stage Alpine build and deployed to AWS EC2. A full CI/CD pipeline powered by Release Please and GitHub Actions handles semver tagging, ECR image pushes, and zero-touch deploys.

Five AWS services (Route 53, EC2, ECR, S3, CloudFront) run the show under least-privilege IAM — all for roughly a dollar a month. If you'd like to reach me, feel free to email info@roohan.dev. I hope you have a wonderful day.

Visit Repo →
"A little digital shack, built and maintained the slow way."
Case 02 · Backend · Enterprise · 2024–2025

II. Refactoring a business-critical API integration

A comprehensive refactor of customer-facing API integrations at American Express, eliminating N+1 query patterns and redundant encrypt-decrypt calls through request batching.

80%
Latency Reduction
85%
FaaS Volume Cut
5 wk
Multi-PI Delivery
0
Defects at Release

Led a comprehensive refactor of business-critical, customer-facing API integrations. Architected a highly performant solution that implemented request batching and eliminated N+1 query patterns across primary product suites.

Strategically reduced redundant encrypt-decrypt API consumption, resulting in an 80% reduction in outbound API call latency and an 85% decrease in encryption-based Function-as-a-Service call volume.

Partnered with System of Record and client platform teams to pool fragmented upstream requests into optimized calls — and during a critical Q3 2025 release, managed the crisis tradeoff between deployment urgency and zero-defect execution.

"80% latency reduction and 85% FaaS volume cut, without sacrificing architectural integrity."
Case 03 · Platform · CI/CD · 2022–2023

III. The platform's first automated performance suite

An enterprise-first performance testing framework integrated into GitHub Actions, covering the top 20 critical queries with built-in alerting — presented at an internal developer conference.

20
Critical Queries
7
REST → GraphQL
11%
Packet Size Cut
GHA
Native Integration

Spearheaded the integration of enterprise performance tools with GitHub Actions. Initiated and built the platform's first fully automated performance testing suite with built-in alerting, covering the top 20 critical queries and addressing long-standing gaps in scalable metrics.

Developed a modular regression testing suite from scratch for reusability across multiple teams. Migrated all production-level queries into the new suite with a custom workflow for seamless cross-team communication.

Selected to present at an internal enterprise developer conference on 'Automating Performance Testing with GHA' — championing enterprise-first solutions and driving platform-wide adoption of these QA frameworks.

"Built the platform's first automated perf suite — then championed it enterprise-wide."