The Ttish journal

Field notes from twenty years of the build

No thought-leadership fluff. Just the patterns, post-mortems, and hard-won judgment from engineers who ship enterprise software for a living — written so you can use it on Monday.

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01Featured · Engineering

Field notes from the build

Jul 2026 · 14 min read

The strangler pattern, in practice — with a rollback at every step

Big-bang rewrites fail quietly for months before they fail loudly. Here's the seam-by-seam sequence we use to retire a monolith without ever stopping the business.

DODana Okafor · Principal Engineer

AIJun 2026 · 11 minBuilding LLM agents that don't embarrass youA demo agent is easy. A production agent that holds up on a bad day is an engineering problem. Here's the evaluation and guardrail harness we wish we'd built on day one.

FinOpsJun 2026 · 7 minWhy your cloud bill keeps climbingThe leak is rarely the obvious instance. It's the five quiet things nobody owns. Here's how we find them in an afternoon — and make the fix stick with policy, not heroics.

SecurityMay 2026 · 9 minHIPAA by design, not by auditCompliance treated as a pre-launch phase produces a fire drill. Compliance treated as a property of the pipeline produces a quiet audit. Here's how to bake it in.

StrategyMay 2026 · 6 minThe real cost of tech debtTech debt doesn't announce itself. It hides in the feature that took three weeks instead of three days. Here's a number leadership will act on — and the one metric that proves the payback.