A deep dive into how SQL databases actually deliver ACID guarantees under the hood — covering WAL, MVCC, isolation levels, and when each matters for real production systems.

A hands-on walkthrough of implementing Token Bucket, Leaking Bucket, Fixed Window, Sliding Window Log, and Sliding Window Counter rate limiters in Python — with FastAPI, Redis, and a deep dive into why Lua scripts beat pure Python for atomic read-modify-write.

A walkthrough of the live execution layer for a stat-arb system — covering OLS hedge ratio sizing bugs, Alpaca enum gotchas, and Polygon rate limit workarounds.

Everything you need to design, configure, and operate Kafka reliably at scale — from producer idempotency and consumer group ownership rules to scaling strategies.

What RPC actually is, how gRPC hides network complexity behind generated stubs, and the proto-first workflow for serving multiple languages from one contract.

A full walkthrough of containerizing a Python API and shipping it to EKS via GitHub Actions, Helm, and ArgoCD — including the credential and ECR bootstrap issues I hit.

How I deployed this blog using S3, CloudFront, Route 53, and CDK — and what actually tripped me up along the way.