The mistake most teams make: treating FastAPI like a request handler. Treat it like an operating system with schedulers, middlewares, and syscalls, and it holds under any load.
07 — engineering philosophy
Writing about the systems I build.
Field notes from real production work — no hype, no thought-leadership. Just the shape of the systems.
Backend Architecture
2025 · 08
9 min
FastAPI at scale: shape your service like an OS.
AI · Evaluation
2025 · 07
12 min
LLM evaluation matrices that actually catch regressions.
Vibes-based eval kills production models. Here's the multi-axis matrix — reasoning, adversarial, hallucination, domain fit — that scaled a 30% quality improvement.
Data · Scraping
2025 · 06
7 min
Proxy rotation algorithms for hostile web scraping.
Sticky sessions, IP fingerprints, adaptive backoff. A field-tested rotation strategy that scrapes millions of pages without triggering hostile counter-measures.
Search Systems
2025 · 05
11 min
Serving 49M records at sub-100ms.
Query parsing, normalization pipelines, and rank shaping. The full anatomy of a large-scale search backend engineered from scratch.
AI · Prompts
2025 · 04
6 min
Prompt engineering isn't clever — it's contract design.
The best prompts read like function signatures. Types, constraints, error paths. Cleverness is fragility.
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