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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.

1939 essays
DATA ENGINEERING What FeatureStores ActuallyCosts. Costs for feature stores extend beyondtools into engineering, controls… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights ·

What Feature Stores Actually Costs

Costs for feature stores extend beyond tools into engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
DATA ENGINEERING PipelineObservabilityUnder Audit. Pipeline observability Under Audit helpsCDO / VP Data leaders test controls… DESIGN SHIP OBSERVE REFINE PIPELINE
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Pipeline Observability Under Audit

Pipeline observability Under Audit helps CDO / VP Data leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
TECHNOLOGY AI-Assisted SREfor Energy. AI-Assisted SRE helps energy engineeringteams connect diagnostic context… AIASSISTED DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights ·

AI-Assisted SRE for Energy

AI-Assisted SRE helps energy engineering teams connect diagnostic context assembly, historical retrieval, the OT boundary, judgement limits, and thin on-call cover to reliability work that cannot be staffed by headcount. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

13 min read↗
APPLIED AI What AI AgentOrchestrationActually Costs. What AI agent orchestration ActuallyCosts shows the engineering, control… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights ·

What AI Agent Orchestration Actually Costs

What AI agent orchestration Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price over the operating life. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
DATA ENGINEERING A Buyer'S Guide toMaster DataManagement. A Buyer's Guide to Master datamanagement helps CDO / VP Data leaders… 01 Scope 02 Build 03 Launch 04 Iterate
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A Buyer'S Guide to Master Data Management

A Buyer's Guide to Master data management helps CDO / VP Data leaders connect master entities, source authority, survivorship rules, stewardship workflow, and distribution and change history to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
PRODUCT ENGINEERING What OnboardingEngineers Onto AISystems ActuallyCosts. The cost of ai-system engineeronboarding includes engineering… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

What Onboarding Engineers Onto AI Systems Actually Costs

The cost of ai-system engineer onboarding includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Dbt at Scalefor FinTech. In fintech, analytics code ischange-controlled code. Tests must… ASSESS ADOPT OPTIMIZE GOVERN
Insights ·

Dbt at Scale for FinTech

In fintech, analytics code is change-controlled code. Tests must assert reconciliation, CI must produce evidence, and every model needs an owner who can be named to an auditor.

14 min read↗
TECHNOLOGY Apache Icebergfor FinTech. Iceberg gives financial data estatesas-of reproducibility and… PLAN BUILD MEASURE IMPROVE APACHE
Insights ·

Apache Iceberg for FinTech

Iceberg gives financial data estates as-of reproducibility and non-destructive corrections. Set snapshot retention from your evidential requirements, not from a default.

14 min read↗
APPLIED AI What Fine-TuningVersus PromptingActually Costs. What Fine-tuning versus promptingActually Costs shows the engineering… WHATFINE-TUNING/… What Fine-Tuning Best fit for your caseSimpler to operateLower switching cost Prompting Actually Added complexityHeavier toolingSteeper learning curve
Insights ·

What Fine-Tuning Versus Prompting Actually Costs

What Fine-tuning versus prompting Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price at enterprise scale. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Dbt at Scale forTechnology & SaaS. Model sprawl is a symptom of missingownership, not missing standards. Fix it… 01 Scope 02 Build 03 Launch 04 Iterate
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Dbt at Scale for Technology & SaaS

Model sprawl is a symptom of missing ownership, not missing standards. Fix it with owned layers, tests that assert business rules, and CI that runs only what changed.

13 min read↗
APPLIED AI What SpeechInterfaces inProduction ActuallyCosts. What Speech interfaces in productionActually Costs shows the engineering… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights ·

What Speech Interfaces in Production Actually Costs

What Speech interfaces in production Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price in production. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
AI GOVERNANCE A Buyer'S Guide toData ExfiltrationThrough Agents. A Buyer's Guide to Data exfiltrationthrough agents helps enterprise leaders… ARCHITECTURE SECURITY RELIABILITY COST BUYER DATA
Insights ·

A Buyer'S Guide to Data Exfiltration Through Agents

A Buyer's Guide to Data exfiltration through agents helps enterprise leaders connect legitimate tool misuse, egress visibility, agent-initiated traffic classification, output channels, and volume controls to detecting exfiltration that uses approved paths. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
PRODUCT ENGINEERING What Legacy SystemIntegration ActuallyCosts. The cost of legacy system integrationincludes engineering, controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

What Legacy System Integration Actually Costs

The cost of legacy system integration includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
QUALITY ENGINEERING A Buyer'S Guide toRegression Testingfor Prompts. A Buyer's Guide to Regression testingfor prompts helps CTO / Head of AI… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

A Buyer'S Guide to Regression Testing for Prompts

A Buyer's Guide to Regression testing for prompts helps CTO / Head of AI leaders connect test cases, behavioural rubric, model matrix, change attribution, and release gating to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
AI GOVERNANCE What AI IncidentResponse ActuallyCosts. What AI incident response Actually Costshelps security leaders connect controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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What AI Incident Response Actually Costs

What AI incident response Actually Costs helps security leaders connect controls, evidence, ownership, failure handling, and production decisions to risk. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
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
Insights ·

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.

17 min read↗
CLOUD & DEVOPS What Inference CostAttribution ActuallyCosts. What Inference cost attribution ActuallyCosts shows the engineering, control… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights ·

What Inference Cost Attribution Actually Costs

What Inference cost attribution Actually Costs shows the engineering, control, change, and risk costs hidden beyond the headline price at enterprise scale. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Real-Time CustomerData for Technology& SaaS. Real-Time Customer Data helps SaaS teamsconnect product event streams, in-app… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights ·

Real-Time Customer Data for Technology & SaaS

Real-Time Customer Data helps SaaS teams connect product event streams, in-app profile updates, decision latency, consent, and fallback behaviour to the moments a user is still in the session. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

13 min read↗
AI GOVERNANCE AI IncidentResponse UnderAudit. AI incident response Under Audit helpsenterprise leaders connect incident… AIINCIDENT DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights ·

AI Incident Response Under Audit

AI incident response Under Audit helps enterprise leaders connect incident records, detection evidence, near-miss capture, timeline reconstruction, and remediation proof to a response function that can show it detects things. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

11 min read↗
TECHNOLOGY API Gateway Strategy inthe Agent Era forTechnology & SaaS. Agent traffic breaks the assumptionsyour gateway was built on. Separate… DESIGN SHIP OBSERVE REFINE API
Insights ·

API Gateway Strategy in the Agent Era for Technology & SaaS

Agent traffic breaks the assumptions your gateway was built on. Separate north-south, east-west, and AI traffic deliberately, because they need different limits and different failure behavior.

15 min read↗
QUALITY ENGINEERING A Buyer'S Guide toContract Testing forModel APIs. A Buyer's Guide to Contract testing formodel APIs helps VP Engineering / Head… 01 Pilot 02 Team 03 Org 04 Scale BUYER CONTRACT
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A Buyer'S Guide to Contract Testing for Model APIs

A Buyer's Guide to Contract testing for model APIs helps VP Engineering / Head of Infrastructure leaders connect request schema, response envelope, version metadata, error semantics, and behavioural compatibility to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
AI GOVERNANCE Data ExfiltrationThrough Agents UnderAudit. Data exfiltration through agents UnderAudit helps enterprise leaders connect… DESIGN SHIP OBSERVE REFINE DATA
Insights ·

Data Exfiltration Through Agents Under Audit

Data exfiltration through agents Under Audit helps enterprise leaders connect egress records, sequence reconstruction, volume evidence, agent attribution, and retention to answering what left rather than what was permitted. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

11 min read↗
PLATFORM ENGINEERING A Buyer'S Guideto GPU CapacityPlanning. A Buyer's Guide to GPU capacity planninghelps VP Engineering / Head of… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

A Buyer'S Guide to GPU Capacity Planning

A Buyer's Guide to GPU capacity planning helps VP Engineering / Head of Infrastructure leaders connect demand model, model footprint, concurrency profile, headroom policy, and procurement and fallback to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
TECHNOLOGY KubernetesMulti-Tenancy forTechnology & SaaS. Namespaces, vclusters, or separateclusters is a blast-radius decision, not… KUBERNETESMULTI DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights ·

Kubernetes Multi-Tenancy for Technology & SaaS

Namespaces, vclusters, or separate clusters is a blast-radius decision, not a cost decision. Pick the isolation your worst tenant justifies, and price the operational overhead honestly.

15 min read↗
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