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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.

1867 essays
TECHNOLOGY Cost Allocation Tags:The Boring Practice ThatSaves Millions. Why cost allocation tagging is theunglamorous practice that unlocks cloud… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights · Jun 5, 2026

Cost Allocation Tags: The Boring Practice That Saves Millions

Why cost allocation tagging is the unglamorous practice that unlocks cloud cost control: a tagging strategy, enforcement, and the accountability it makes possible.

12 min read↗
TECHNOLOGY The SLO Handbook:Setting Targets YourTeam Can Actually Hit. A practical handbook for setting servicelevel objectives your team can actually… 01 Ad hoc 02 Managed 03 Defined 04 Optimized SLO HANDBOOK
Insights · Jun 5, 2026

The SLO Handbook: Setting Targets Your Team Can Actually Hit

A practical handbook for setting service level objectives your team can actually hit: choosing SLIs, realistic targets, error budgets, and the operating model behind them.

13 min read↗
TECHNOLOGY Observability-DrivenDevelopment: InstrumentBefore You Ship. Why observability belongs indevelopment, not after an incident… 01 Discover 02 Prototype 03 Harden 04 Roll out
Insights · Jun 5, 2026

Observability-Driven Development: Instrument Before You Ship

Why observability belongs in development, not after an incident: instrumenting before you ship, the three pillars, and the practice that makes systems debuggable in production.

12 min read↗
TECHNOLOGY Secrets Management atScale: BeyondEnvironment Variables. Why environment variables fail assecrets management at scale, and how to… STRATEGY DELIVERY GOVERNANCE SCALE SECRETSMANAGEMENT
Insights · Jun 5, 2026

Secrets Management at Scale: Beyond Environment Variables

Why environment variables fail as secrets management at scale, and how to do it right: centralized storage, dynamic secrets, rotation, and the controls a production system needs.

13 min read↗
TECHNOLOGY The True Cost ofMulti-Region: Beyondthe AWS Bill. The real cost of going multi-region ismore than duplicated infrastructure… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights · Jun 5, 2026

The True Cost of Multi-Region: Beyond the AWS Bill

The real cost of going multi-region is more than duplicated infrastructure: data replication, consistency, operational complexity, and the controls a multi-region system needs.

12 min read↗
TECHNOLOGY Progressive Delivery:Canaries, Blue-Green,and Feature Flags. A practical guide to progressivedelivery: canary releases, blue-green… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights · Jun 5, 2026

Progressive Delivery: Canaries, Blue-Green, and Feature Flags

A practical guide to progressive delivery: canary releases, blue-green deployments, and feature flags, plus the metrics and automation that make rollouts safe.

12 min read↗
TECHNOLOGY Golden Paths: Pavingthe Road forDeveloperProductivity. What golden paths are and how they boostdeveloper productivity: paved defaults… GOLDENPATHS DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights · Jun 5, 2026

Golden Paths: Paving the Road for Developer Productivity

What golden paths are and how they boost developer productivity: paved defaults, escape hatches, and the platform discipline that makes the right way the easy way.

12 min read↗
TECHNOLOGY The Platform Team'sFirst 90 Days: Whatto Build First. What a new platform engineering teamshould build in its first 90 days… PLATFORMTEAM DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights · Jun 4, 2026

The Platform Team's First 90 Days: What to Build First

What a new platform engineering team should build in its first 90 days: sequencing, golden paths, and the foundations that earn adoption instead of resentment.

13 min read↗
TECHNOLOGY Landing Zones: GettingYour Cloud FoundationRight the First Time. What a cloud landing zone is and how toget the foundation right the first time… PLAN BUILD MEASURE IMPROVE LANDING
Insights · Jun 4, 2026

Landing Zones: Getting Your Cloud Foundation Right the First Time

What a cloud landing zone is and how to get the foundation right the first time: account structure, identity, networking, guardrails, and the controls a production landing zone needs.

12 min read↗
TECHNOLOGY Building a FeatureStore: Do YouActually Need One?. A practical look at feature stores: whatproblems they solve, when you actually… ARCHITECTURE SECURITY RELIABILITY COST BUILDINGFEATURE
Insights · Jun 4, 2026

Building a Feature Store: Do You Actually Need One?

A practical look at feature stores: what problems they solve, when you actually need one, the cost of building too early, and how to decide for your ML program.

13 min read↗
TECHNOLOGY CardinalityExplosions and OtherSilent PipelineKillers. The silent failure modes that quietlykill data pipelines, cardinality… MODEL DEPLOY MONITOR ITERATE CARDINALI…
Insights · Jun 4, 2026

Cardinality Explosions and Other Silent Pipeline Killers

The silent failure modes that quietly kill data pipelines, cardinality explosions, skew, fan-out joins, and how to detect and prevent them before they blow up cost and latency.

13 min read↗
TECHNOLOGY The On-Call DataEngineer: Runbooks for 3AM Pipeline Failures. How to build an on-call practice fordata engineering: runbooks, alerting… PLAN BUILD MEASURE IMPROVE CALL
Insights · Jun 4, 2026

The On-Call Data Engineer: Runbooks for 3 AM Pipeline Failures

How to build an on-call practice for data engineering: runbooks, alerting, escalation, and the operating model that turns 3 AM pipeline failures into routine recoveries.

13 min read↗
TECHNOLOGY Data Pipeline Testing:Unit, Integration, andContract Tests. How to test data pipelines properly withunit, integration, and contract tests… DESIGN SHIP OBSERVE REFINE DATA
Insights · Jun 4, 2026

Data Pipeline Testing: Unit, Integration, and Contract Tests

How to test data pipelines properly with unit, integration, and contract tests, plus data quality checks, so bad data is caught before it reaches dashboards and models.

13 min read↗
TECHNOLOGY Streaming vs.Micro-Batch:Choosing YourLatency Tier. A framework for choosing betweenstreaming and micro-batch data… STREAMING/MICRO-BATCH… Streaming Best fit for your caseSimpler to operateLower switching cost Micro-Batch: Choosing Added complexityHeavier toolingSteeper learning curve
Insights · Jun 4, 2026

Streaming vs. Micro-Batch: Choosing Your Latency Tier

A framework for choosing between streaming and micro-batch data processing: latency tiers, cost, complexity, and the controls each production pipeline needs.

13 min read↗
TECHNOLOGY Partition Pruningand the Art of theFast Query. How partition pruning, clustering, andfile layout turn slow, expensive… PARTITIONPRUNING DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights · Jun 4, 2026

Partition Pruning and the Art of the Fast Query

How partition pruning, clustering, and file layout turn slow, expensive warehouse queries into fast ones, with the design patterns and controls a production data platform needs.

13 min read↗
TECHNOLOGY Building a DataCatalog PeopleActually Use. Why most data catalogs go unused and howto build one people actually rely on… ASSESS ADOPT OPTIMIZE GOVERN
Insights · Jun 4, 2026

Building a Data Catalog People Actually Use

Why most data catalogs go unused and how to build one people actually rely on: adoption-first design, ownership, lineage, and the workflows that keep it current.

13 min read↗
TECHNOLOGY The Semantic Layer:One Definition ofRevenue, Finally. Learn how a semantic layer gives anenterprise one governed definition of… DESIGN SHIP OBSERVE REFINE SEMANTIC
Insights · Jun 4, 2026

The Semantic Layer: One Definition of Revenue, Finally

Learn how a semantic layer gives an enterprise one governed definition of revenue and every other metric: architecture, governance, and the controls a production deployment needs.

13 min read↗
TECHNOLOGY Cloud-NativeRefactoring: WhenLift-and-Shift StopsWorking. Lift-and-shift cloud migrations save theinitial migration cost and accumulate… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights · May 28, 2026

Cloud-Native Refactoring: When Lift-and-Shift Stops Working

Lift-and-shift cloud migrations save the initial migration cost and accumulate technical debt that becomes refactoring cost later. The trigger to refactor is recognizable. Here is the practitioner…

8 min read↗
TECHNOLOGY Internal DeveloperPlatforms: Build-OutPatterns for EngineeringOrgs. Internal Developer Platforms pay off atspecific organizational sizes and fail… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights · May 28, 2026

Internal Developer Platforms: Build-Out Patterns for Engineering Orgs

Internal Developer Platforms pay off at specific organizational sizes and fail at others. The buildout that works has identifiable phases. Here is the practitioner reference for when to start and…

8 min read↗
TECHNOLOGY Real Estate UnderwritingAI: Models forCommercial InvestmentDecisions. Real estate underwriting AI has maturedfor commercial investment decisions. The… PLAN BUILD MEASURE IMPROVE REAL
Insights · May 27, 2026

Real Estate Underwriting AI: Models for Commercial Investment Decisions

Real estate underwriting AI has matured for commercial investment decisions. The patterns reflect the data and the analytical workflows. Here is the 2026 reference.

8 min read↗
TECHNOLOGY Smart Building DataArchitecture: FromSensors to OperationalInsight. Smart building data architectures havespecific properties that distinguish… 01 Pilot 02 Team 03 Org 04 Scale SMART BUILDING
Insights · May 27, 2026

Smart Building Data Architecture: From Sensors to Operational Insight

Smart building data architectures have specific properties that distinguish them from generic IoT platforms. The patterns reflect building operational reality. Here is the 2026 reference.

8 min read↗
TECHNOLOGY AI in PropertyManagement: MaintenanceTriage and VendorCoordination. AI in property management has shippedmost successfully in maintenance triage… PEOPLE PROCESS PLATFORM PRACTICE AI PROPERTY
Insights · May 27, 2026

AI in Property Management: Maintenance Triage and Vendor Coordination

AI in property management has shipped most successfully in maintenance triage and vendor coordination. The patterns reduce operational cost and improve resident experience. Here is the 2026 reference.

7 min read↗
TECHNOLOGY Real Estate LeadScoring: Models ThatBeat Round-Robin WithoutBias. Real estate lead scoring AI has tooutperform round-robin assignment… REALESTATE DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights · May 27, 2026

Real Estate Lead Scoring: Models That Beat Round-Robin Without Bias

Real estate lead scoring AI has to outperform round-robin assignment without creating fair housing problems. The patterns that work in 2026 have specific properties. Here is the reference.

8 min read↗
TECHNOLOGY Demand Response AI: FromDay-Ahead Forecasts toReal-Time Curtailment. Demand response AI has moved beyondsimple peak forecasting. The patterns… STRATEGY DELIVERY GOVERNANCE SCALE DEMANDRESPONSE
Insights · May 27, 2026

Demand Response AI: From Day-Ahead Forecasts to Real-Time Curtailment

Demand response AI has moved beyond simple peak forecasting. The patterns span day-ahead planning through real-time dispatch. Here is the 2026 reference for what works.

8 min read↗
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