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Field notes from production AI.

Long-form essays from the engineers shipping AI inside payers, hospitals, energy operators and proptech platforms. Written for technology leaders who care more about what runs in production than what trended last week.

All essays

Field notes, sorted by recency.

15 essays
PRODUCT ENGINEERING A Buyer's Guide toMonolith to modulararchitecture. A Buyer's Guide to Monolith to modulararchitecture helps CTO / Head of AI… PEOPLE PROCESS PLATFORM PRACTICE BUYERMONOLITH
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A Buyer's Guide to Monolith to modular architecture

A Buyer's Guide to Monolith to modular architecture helps CTO / Head of AI leaders connect domain boundaries, dependency direction, module interfaces, data ownership, and extraction criteria to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guideto AI featurescoping. A Buyer's Guide to AI feature scopinghelps CTO / Head of AI leaders connect… 01 Scope 02 Build 03 Launch 04 Iterate
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A Buyer's Guide to AI feature scoping

A Buyer's Guide to AI feature scoping helps CTO / Head of AI leaders connect user decision, input boundary, model responsibility, human control, and evaluation criteria to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toRoadmap sequencingfor AI. A Buyer's Guide to Roadmap sequencingfor AI helps CTO / Head of AI leaders… BUYERROADMAP DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
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A Buyer's Guide to Roadmap sequencing for AI

A Buyer's Guide to Roadmap sequencing for AI helps CTO / Head of AI leaders connect risk inventory, evaluation baseline, data readiness, control maturity, and expansion gates to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toStrangler-figmigration. A Buyer's Guide to Strangler-figmigration helps CTO / Head of AI leaders… 01 Pilot 02 Team 03 Org 04 Scale BUYER STRANGLER
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A Buyer's Guide to Strangler-fig migration

A Buyer's Guide to Strangler-fig migration helps CTO / Head of AI leaders connect capability boundary, traffic interception, data authority, dual-run validation, and decommission criteria to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toLegacy systemintegration. A Buyer's Guide to Legacy systemintegration helps CTO / Head of AI… BUYERLEGACY DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
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A Buyer's Guide to Legacy system integration

A Buyer's Guide to Legacy system integration helps CTO / Head of AI leaders connect system boundaries, business rules, interface strategy, data reconciliation, and cutover and fallback to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guideto Discoverysprints. A Buyer's Guide to Discovery sprintshelps CTO / Head of AI leaders connect… ARCHITECTURE SECURITY RELIABILITY COST BUYERDISCOVERY
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A Buyer's Guide to Discovery sprints

A Buyer's Guide to Discovery sprints helps CTO / Head of AI leaders connect decision question, technical spike, user evidence, architecture constraints, and go/no-go output to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guideto Feature flagstrategy. A Buyer's Guide to Feature flag strategyhelps VP Engineering / Head of… 01 Discover 02 Prototype 03 Harden 04 Roll out
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A Buyer's Guide to Feature flag strategy

A Buyer's Guide to Feature flag strategy helps VP Engineering / Head of Infrastructure leaders connect flag taxonomy, targeting, ownership, lifecycle, and failure behaviour to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guideto API-firstdesign. A Buyer's Guide to API-first designhelps VP Engineering / Head of… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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A Buyer's Guide to API-first design

A Buyer's Guide to API-first design helps VP Engineering / Head of Infrastructure leaders connect consumer use cases, contract design, versioning, error semantics, and governance and testing to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toTechnical debtportfolios. A Buyer's Guide to Technical debtportfolios helps CTO / Head of AI… 01 Pilot 02 Team 03 Org 04 Scale BUYER TECHNICAL
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A Buyer's Guide to Technical debt portfolios

A Buyer's Guide to Technical debt portfolios helps CTO / Head of AI leaders connect debt inventory, business impact, risk scoring, remediation options, and portfolio governance to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toIdempotency andretries. A Buyer's Guide to Idempotency andretries helps VP Engineering / Head of… PEOPLE PROCESS PLATFORM PRACTICE BUYERIDEMPOTENCY
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A Buyer's Guide to Idempotency and retries

A Buyer's Guide to Idempotency and retries helps VP Engineering / Head of Infrastructure leaders connect operation identity, idempotency key, retry policy, side-effect boundary, and deduplication evidence to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toTechnical duediligence. A Buyer's Guide to Technical duediligence helps CTO / Head of AI leaders… DESIGN SHIP OBSERVE REFINE BUYER
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A Buyer's Guide to Technical due diligence

A Buyer's Guide to Technical due diligence helps CTO / Head of AI leaders connect decision questions, architecture risk, delivery evidence, security and operations, and remediation economics to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toBuild versus buydecisions. A Buyer's Guide to Build versus buydecisions helps CTO / Head of AI leaders… A BUYER'S/ BUYDECISIONS A Buyer's Best fit for your caseSimpler to operateLower switching cost buy decisions Added complexityHeavier toolingSteeper learning curve
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A Buyer's Guide to Build versus buy decisions

A Buyer's Guide to Build versus buy decisions helps CTO / Head of AI leaders connect strategic control, integration depth, operating burden, switching cost, and time-to-value to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toEngineering teamtopologies. A Buyer's Guide to Engineering teamtopologies helps VP Engineering / Head… 01 Ad hoc 02 Managed 03 Defined 04 Optimized BUYER ENGINEERING
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A Buyer's Guide to Engineering team topologies

A Buyer's Guide to Engineering team topologies helps VP Engineering / Head of Infrastructure leaders connect value streams, cognitive load, platform boundaries, interaction modes, and ownership evolution to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toOnboarding engineersonto AI systems. A Buyer's Guide to Onboarding engineersonto AI systems helps CTO / Head of AI… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
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A Buyer's Guide to Onboarding engineers onto AI systems

A Buyer's Guide to Onboarding engineers onto AI systems helps CTO / Head of AI leaders connect system map, decision trace, local environment, evaluation workflow, and operational history to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING A Buyer's Guide toEvent-drivenarchitecture. A Buyer's Guide to Event-drivenarchitecture helps VP Engineering / Head… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
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A Buyer's Guide to Event-driven architecture

A Buyer's Guide to Event-driven architecture helps VP Engineering / Head of Infrastructure leaders connect event contracts, delivery semantics, ordering, state and replay, and ownership and observability to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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