Writing
Notes from building useful software.
Thoughts on systems, engineering, and the choices behind the work.
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Semantic Caching: Caching for LLM Apps
Faster LLM responses
The Yen, Carry Trades, and the July 30 Nasdaq Selloff
ersonal observations on a sharp Nasdaq move, yen volatility, official intervention, and the yen carry trade.
Fundamentals of Building AI Agents: ReAct with LangChain
A practical note on what AI agents are, how the ReAct loop works, and how to build a small LangChain SQL agent with runtime context and checkpoints.
How to Create a Postgres Replica
How PostgreSQL streaming replication works and a small Docker demo for bringing up a read replica
Interview Preparation(Python) Part One
Notes about Python language best practice and easy-to-make mistakes
About Myself
Background, interests, and a quick walk through my education, experience, and core technical focus.
It is always us-east-1
A collective summary of the AWS outage in October 19, 2025.