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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.

1395 essays
TECHNOLOGY Tenant Screening AI:Risk Models That Don'tViolate Fair Housing. Tenant screening AI sits at theintersection of risk modeling and fair… 01 Assess 02 Design 03 Ship 04 Operate
Insights · May 27, 2026

Tenant Screening AI: Risk Models That Don't Violate Fair Housing

Tenant screening AI sits at the intersection of risk modeling and fair housing law. The patterns that work in 2026 have specific properties. Here is the reference.

8 min read
TECHNOLOGY AI for MultifamilyOperations: Renewals,Rent-Setting, and TenantExperience. AI in multifamily operations has movedpast pilot projects into specific… 01 Discover 02 Prototype 03 Harden 04 Roll out
Insights · May 27, 2026

AI for Multifamily Operations: Renewals, Rent-Setting, and Tenant Experience

AI in multifamily operations has moved past pilot projects into specific operational use cases. Renewals, rent-setting, and tenant experience patterns have settled. Here is the 2026 reference.

8 min read
TECHNOLOGY AI Vendor Negotiation:Pricing, SLAs, and ExitClauses That Matter. Most AI vendor negotiations focus onprice and miss the levers that matter… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights · May 26, 2026

AI Vendor Negotiation: Pricing, SLAs, and Exit Clauses That Matter

Most AI vendor negotiations focus on price and miss the levers that matter more over a multi-year contract. Six negotiation areas distinguish contracts that hold up from contracts that quietly…

8 min read
TECHNOLOGY Customer 360Architecture: FromTheoretical toDeployed. Customer 360 projects often ship andthen erode. The architectures that… ASSESS ADOPT OPTIMIZE GOVERN
Insights · May 26, 2026

Customer 360 Architecture: From Theoretical to Deployed

Customer 360 projects often ship and then erode. The architectures that survive year two share recognizable patterns. Here is what production-grade Customer 360 actually looks like beyond the launch.

7 min read
TECHNOLOGY SLOs for Data Products:Operational Targets ThatSurvive Audits. Data SLOs that exist on paper getignored. Data SLOs that are operational… MODEL DEPLOY MONITOR ITERATE SLOS
Insights · May 26, 2026

SLOs for Data Products: Operational Targets That Survive Audits

Data SLOs that exist on paper get ignored. Data SLOs that are operational get respected and pass audit. Five SLO categories matter most, and three implementation patterns distinguish operational…

8 min read
TECHNOLOGY Streaming Joins atScale: Patterns forEvent Correlation. Streaming joins are where most streamprocessing architectures break. Three… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights · May 26, 2026

Streaming Joins at Scale: Patterns for Event Correlation

Streaming joins are where most stream processing architectures break. Three failure modes account for the majority of incidents and three patterns handle them at scale. Here is the practitioner…

7 min read
TECHNOLOGY Zero-ETL Architectures:Cross-ServiceIntegration WithoutPipelines. Cloud vendors have shipped enoughzero-ETL integrations that the… PLAN BUILD MEASURE IMPROVE ZERO
Insights · May 26, 2026

Zero-ETL Architectures: Cross-Service Integration Without Pipelines

Cloud vendors have shipped enough zero-ETL integrations that the architecture is now an option for many workloads. The savings are real and the tradeoffs are specific. Here is the practitioner…

8 min read
TECHNOLOGY Data ContractEnforcement: Patternsfor Producer-ConsumerReliability. Data contracts that exist on paper getviolated routinely. Data contracts that… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights · May 26, 2026

Data Contract Enforcement: Patterns for Producer-Consumer Reliability

Data contracts that exist on paper get violated routinely. Data contracts that are enforced by infrastructure rarely do. Three enforcement patterns separate the two outcomes.

8 min read
TECHNOLOGY Iceberg, Delta, Hudi: APractitioner Comparisonof Open Table Formats. The open table format war has largelysettled. Three formats remain in serious… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights · May 26, 2026

Iceberg, Delta, Hudi: A Practitioner Comparison of Open Table Formats

The open table format war has largely settled. Three formats remain in serious production use, each fitting different workload patterns. Here is the practitioner comparison without the vendor framing.

7 min read
TECHNOLOGY The Federated DataStack: When to Meshand When to Hub. Data mesh and data hub are presented ascompeting philosophies. They are… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights · May 26, 2026

The Federated Data Stack: When to Mesh and When to Hub

Data mesh and data hub are presented as competing philosophies. They are actually different answers to specific organizational questions. Here is the decision reference for which one your…

7 min read
TECHNOLOGY Data Sharding andPartitioning Strategiesfor Petabyte-ScalePlatforms. Most data platforms hit a wall somewherebetween hundreds of terabytes and a few… DATASHARDING DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights · May 26, 2026

Data Sharding and Partitioning Strategies for Petabyte-Scale Platforms

Most data platforms hit a wall somewhere between hundreds of terabytes and a few petabytes. The wall is usually a partitioning decision made earlier. Here are the strategies that survive past the…

7 min read
TECHNOLOGY Database PerformanceEngineering forCloud-NativeApplications. Most slow cloud-native applications havedatabase problems that look like… DATABASEPERFORMANCE DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights · May 26, 2026

Database Performance Engineering for Cloud-Native Applications

Most slow cloud-native applications have database problems that look like application problems. Three diagnostic categories cover most issues and three patterns address them. Here is the…

8 min read
TECHNOLOGY Chaos Engineering inPractice: Patterns forEnterprise Adoption. Chaos engineering programs that getannounced often do not survive. The… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights · May 26, 2026

Chaos Engineering in Practice: Patterns for Enterprise Adoption

Chaos engineering programs that get announced often do not survive. The programs that survive share recognizable patterns. Here is the practitioner reference for adoption that produces operational…

7 min read
TECHNOLOGY AWS Graviton Migration:Patterns, Pitfalls, andReal Savings. Graviton migration saves 20-40% oncompute when done well. Three workload… AWSGRAVITON DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights · May 26, 2026

AWS Graviton Migration: Patterns, Pitfalls, and Real Savings

Graviton migration saves 20-40% on compute when done well. Three workload categories migrate cleanly, three categories require care, and three patterns avoid the common pitfalls. Here is the…

8 min read
TECHNOLOGY AWS Lambda for AIInference: ArchitecturePatterns and Limits. Lambda fits some AI inference workloadswell and others poorly. The boundary is… 01 Pilot 02 Team 03 Org 04 Scale AWS LAMBDA
Insights · May 26, 2026

AWS Lambda for AI Inference: Architecture Patterns and Limits

Lambda fits some AI inference workloads well and others poorly. The boundary is not always obvious. Three workload patterns fit Lambda, three patterns do not. Here is the practitioner reference.

7 min read
TECHNOLOGY AWS Lake Formation:Governance Patterns atEnterprise Scale. Lake Formation has evolved into acredible governance layer for AWS data… FOUNDATIONS IMPLEMENTATION OPTIMIZATION IMPACT
Insights · May 26, 2026

AWS Lake Formation: Governance Patterns at Enterprise Scale

Lake Formation has evolved into a credible governance layer for AWS data lakes. Three governance capabilities matter most at enterprise scale and three deployment patterns produce reliable…

8 min read
TECHNOLOGY AWS App Runner vs Lambdavs Fargate: The ModernApp Decision Map. Modern app deployment on AWS has threemain options that fit different workload… ARCHITECTURE SECURITY RELIABILITY COST AWS APP
Insights · May 26, 2026

AWS App Runner vs Lambda vs Fargate: The Modern App Decision Map

Modern app deployment on AWS has three main options that fit different workload patterns. The decision is workload-driven rather than ideology-driven. Here is the decision map for picking right.

7 min read
TECHNOLOGY Generative AI for PriorAuthorization: Workflowand Compliance Patterns. Prior authorization is one ofhealthcare's most-painful administrative… MODEL DEPLOY MONITOR ITERATE GENERATIVE
Insights · May 26, 2026

Generative AI for Prior Authorization: Workflow and Compliance Patterns

Prior authorization is one of healthcare's most-painful administrative workflows. GenAI applications have shown specific patterns that produce results and others that produce regulatory exposure.…

7 min read
TECHNOLOGY Clinical Trial DataEngineering: Real-WorldEvidence at Scale. Real-world evidence has moved from aregulatory novelty to a primary mode of… CLINICALTRIAL DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights · May 26, 2026

Clinical Trial Data Engineering: Real-World Evidence at Scale

Real-world evidence has moved from a regulatory novelty to a primary mode of clinical evidence generation. The data engineering reality is harder than the regulatory framework. Here is the…

8 min read
TECHNOLOGY EU AI Act Compliance forHealthcare Software: APractitioner Guide. EU AI Act enforcement begins August 2026with specific obligations for healthcare… EU AI DO Define ownership earlyMeasure before scalingBuild for observability AVOID Unclear accountabilityPremature optimizationBlack-box systems
Insights · May 26, 2026

EU AI Act Compliance for Healthcare Software: A Practitioner Guide

EU AI Act enforcement begins August 2026 with specific obligations for healthcare AI systems. Five compliance areas matter most. Here is the practitioner guide for organizations that have not yet…

8 min read
TECHNOLOGY AI Scribes inProduction: OperationalRealities of AmbientDocumentation. AI scribes have moved from pilot toproduction at scale. The operational… PLAN BUILD MEASURE IMPROVE AI
Insights · May 26, 2026

AI Scribes in Production: Operational Realities of Ambient Documentation

AI scribes have moved from pilot to production at scale. The operational realities differ from the marketing in specific ways. Eighteen months of production experience reveals five patterns that…

8 min read
TECHNOLOGY Multi-Region HealthcareCloud: Data Residencyand Failover Patterns. Healthcare cloud architectures spanningregions face data residency, latency… ARCHITECTURE SECURITY RELIABILITY COST MULTIREGION
Insights · May 26, 2026

Multi-Region Healthcare Cloud: Data Residency and Failover Patterns

Healthcare cloud architectures spanning regions face data residency, latency, and failover questions that single-region architectures do not. Four patterns handle the realistic complexity. Here is…

7 min read
TECHNOLOGY AWS HealthLake inProduction: FHIRWorkloads at EnterpriseScale. AWS HealthLake handles FHIR workloads atenterprise scale with specific… AWSHEALTHLAKE DO Start from metricsShip incrementallyAutomate the guardrails AVOID Big-bang rolloutsSkipping discoveryManual, ad-hoc checks
Insights · May 26, 2026

AWS HealthLake in Production: FHIR Workloads at Enterprise Scale

AWS HealthLake handles FHIR workloads at enterprise scale with specific operational characteristics. Three workload patterns fit, three do not, and three production realities affect deployment…

7 min read
TECHNOLOGY Patient Safety SignalDetection: PipelinePatterns forPharmacovigilance. Pharmacovigilance signal detection hasmoved from periodic batch review to… DESIGN SHIP OBSERVE REFINE PATIENT
Insights · May 26, 2026

Patient Safety Signal Detection: Pipeline Patterns for Pharmacovigilance

Pharmacovigilance signal detection has moved from periodic batch review to continuous pipeline analysis. The pipeline patterns that produce reliable signals share recognizable structure. Here is…

8 min read
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