Hi, I'm Shan

I design software systems and write about how they actually get built.

Lead Consultant @ Thoughtworks | Architect, GenAI & Distributed Systems

About me Read the blog

What I Do

I'm an architect with 19+ years of experience building cloud platforms and distributed systems on AWS, and helping teams modernize the ones that have grown hard to change. These days I focus on solving real business problems with enterprise GenAI and agentic AI, using AI for software delivery (AIFSD) and spec-driven development to ship faster without getting sloppy.

My Approach

I keep things simple: understand the problem first, then choose the design. I stay curious by trying new tools, contributing to open source and writing up what I learn on this blog. And I work best with teams where people share what they know and help each other grow.

Latest Blogs

All blogs
  1. 19 min read

    Loop Engineering Is Not the Agent Loop: Data From Two Runs

    Loop engineering now means the system above your agents, not the tool loop inside one. Cost and failure dat...

  2. 7 min read

    The Patch Velocity Gap: AI Finds Bugs Faster Than You Can Patch Them

    Anthropic's deputy CISO warns AI is accelerating vulnerability discovery faster than enterprise patch cycle...

  3. 11 min read

    Stop Using a Language Model for Everything. Here's What I Use Instead.

    Most enterprise agent pipelines route every AI call through an LLM. After profiling a production pipeline, ...

  4. 20 min read

    Harness Engineering and Loop Engineering: The Layer Between an LLM and Real Work

    Prompt engineering gets a language model to say the right thing once. Harness engineering and loop engineer...

Featured Projects

All projects
  1. Open Source

    SDLC Factory: Autonomous Software Delivery with AI Agents

    An autonomous multi-agent pipeline that transforms plain-English product ideas into production-ready softwa...

    View on GitHub Blog Post

  2. Portfolio Website

    Modern, responsive personal portfolio website built with Jekyll and hosted on GitHub Pages. Features custom...

    View on GitHub

  3. Personal Finance Tracker

    Production-ready full-stack finance app built entirely via Claude Code CLI using a 7-agent spec-driven pipe...

    View on GitHub Blog Post

  4. AutoClassifier: AI-Powered Car Identification

    Deep learning-based car identification model using computer vision for automotive surveillance. Processes 1...