Scaling & Infra22 min read
Serverless on AWS in Production — What Nobody Tells You Until It Hurts
Not a "what is serverless" post. The stuff you learn after the demo, from someone who's run it at scale.
Writing
39 long-form articles on production engineering — how real systems fail, why, and what actually fixed them.
4 articles matching “Cost Optimization”
Scaling & Infra20 min read
AWS Lambda Under the Hood: Firecracker, Cold Starts, and the Concurrency Model Nobody Reads the Docs For
Not a "what is Lambda" post. A deep dive into how Lambda actually works: Firecracker microVMs and the Worker/placement fleet, how invocations get routed on the warm vs cold path, and what the INIT phase really does (and…
Query Optimization13 min read
Page 1 Loads in 8ms, Page 5,000 Takes 4 Seconds — The OFFSET Trap and How Cursors Fix It
Every list endpoint ends in LIMIT 20 OFFSET ?. It has an index, page one returns in 8ms, and it passes review — then one Tuesday page 4,000 takes four seconds and a nightly export job stops finishing.
Query Optimization18 min read
"Push It All on the Database" — The Lie That Works Until It Doesn't
Every team ships with the same lie: throw everything on the database and it'll handle correctness. Works at 50 writes/sec.