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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.

30 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 Feature flagstrategy UnderAudit. Feature flag strategy Under Audit helpsVP Engineering / Head of Infrastructure… PEOPLE PROCESS PLATFORM PRACTICE FEATUREFLAG
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Feature flag strategy Under Audit

Feature flag strategy Under Audit helps VP Engineering / Head of Infrastructure leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Technical duediligence UnderAudit. Technical due diligence Under Audithelps CTO / VP Engineering leaders test… 01 Ad hoc 02 Managed 03 Defined 04 Optimized TECHNICAL DUE
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Technical due diligence Under Audit

Technical due diligence Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Monolith to modulararchitecture UnderAudit. Monolith to modular architecture UnderAudit helps CTO / VP Engineering leaders… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
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Monolith to modular architecture Under Audit

Monolith to modular architecture Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. 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 Build versus buydecisions UnderAudit. Build versus buy decisions Under Audithelps CTO / VP Engineering leaders test… BUILD /BUYDECISIONS Build Best fit for your caseSimpler to operateLower switching cost buy decisions Added complexityHeavier toolingSteeper learning curve
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Build versus buy decisions Under Audit

Build versus buy decisions Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Roadmapsequencing for AIUnder Audit. Roadmap sequencing for AI Under Audithelps CTO / VP Product leaders test… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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Roadmap sequencing for AI Under Audit

Roadmap sequencing for AI Under Audit helps CTO / VP Product leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Technical debtportfolios UnderAudit. Technical debt portfolios Under Audithelps CTO / VP Engineering leaders test… 01 Discover 02 Prototype 03 Harden 04 Roll out
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Technical debt portfolios Under Audit

Technical debt portfolios Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. 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 Legacy systemintegration UnderAudit. Legacy system integration Under Audithelps CTO / VP Engineering leaders test… PLAN BUILD MEASURE IMPROVE LEGACY
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Legacy system integration Under Audit

Legacy system integration Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. 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 Onboarding engineersonto AI systemsUnder Audit. Onboarding engineers onto AI systemsUnder Audit helps CTO / VP Engineering… MODEL DEPLOY MONITOR ITERATE ONBOARDING
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Onboarding engineers onto AI systems Under Audit

Onboarding engineers onto AI systems Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Discovery sprintsUnder Audit. Discovery sprints Under Audit helps CTO/ VP Product leaders test controls… 01 Discover 02 Prototype 03 Harden 04 Roll out
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Discovery sprints Under Audit

Discovery sprints Under Audit helps CTO / VP Product leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING Idempotency andretries UnderAudit. Idempotency and retries Under Audithelps VP Engineering / Head of… ARCHITECTURE SECURITY RELIABILITY COST IDEMPOTENCYRETRIES
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Idempotency and retries Under Audit

Idempotency and retries Under Audit helps VP Engineering / Head of Infrastructure leaders test controls, evidence, ownership, failure handling, and recovery. 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 Event-drivenarchitectureUnder Audit. Event-driven architecture Under Audithelps VP Engineering / Head of… EVENTDRIVEN DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
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Event-driven architecture Under Audit

Event-driven architecture Under Audit helps VP Engineering / Head of Infrastructure leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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PRODUCT ENGINEERING AI featurescoping UnderAudit. AI feature scoping Under Audit helps CTO/ VP Product leaders test controls… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
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AI feature scoping Under Audit

AI feature scoping Under Audit helps CTO / VP Product leaders test controls, evidence, ownership, failure handling, and recovery. 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 Engineering teamtopologies UnderAudit. Engineering team topologies Under Audithelps CTO / VP Engineering leaders test… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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Engineering team topologies Under Audit

Engineering team topologies Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

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