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Fernando Azevedo

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CloudFront dual-stack VPC origins: IPv6 to private origins, with caveats

CloudFront dual-stack VPC origins: IPv6 to private origins, with caveats

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8 min read
Well-Architected Agent: architecture review becomes a weekly process

Well-Architected Agent: architecture review becomes a weekly process

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8 min read
Sharing a GPU cluster on HyperPod: three designs and when each one pays off

Sharing a GPU cluster on HyperPod: three designs and when each one pays off

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8 min read
Critical or non-critical: the failure contract of ECS daemons

Critical or non-critical: the failure contract of ECS daemons

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9 min read
AMIs with a contract: anatomy of EC2's new instance-type block

AMIs with a contract: anatomy of EC2's new instance-type block

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10 min read
3LO in Bedrock Managed KB: 5-minute setup, 1 irreversible decision

3LO in Bedrock Managed KB: 5-minute setup, 1 irreversible decision

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11 min read
RAG on ServiceNow: the connector that erases user criteria

RAG on ServiceNow: the connector that erases user criteria

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11 min read
ECS Early Success Criteria: where your deployment rollback ends

ECS Early Success Criteria: where your deployment rollback ends

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10 min read
Fable 5.1 on Bedrock: data retention is now an architecture decision

Fable 5.1 on Bedrock: data retention is now an architecture decision

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11 min read
GPT-6 Astra on Bedrock: the endpoint decides what you audit

GPT-6 Astra on Bedrock: the endpoint decides what you audit

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10 min read
Workload-type capacity in Amazon Connect: what actually changes

Workload-type capacity in Amazon Connect: what actually changes

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10 min read
Lambda recursive loops: four guardrails compared in the Sovereign Cloud

Lambda recursive loops: four guardrails compared in the Sovereign Cloud

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10 min read
MediaLive without timecode: what Video Aligned Locking changes in redundancy

MediaLive without timecode: what Video Aligned Locking changes in redundancy

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9 min read
LLM cold starts on HyperPod: from 27 minutes to seconds with model caching

LLM cold starts on HyperPod: from 27 minutes to seconds with model caching

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9 min read
Training and inference on one GPU fleet: four ways to share 10,000 accelerators

Training and inference on one GPU fleet: four ways to share 10,000 accelerators

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10 min read
Beanstalk Cluster Mode: the postmortem I wrote before the incident

Beanstalk Cluster Mode: the postmortem I wrote before the incident

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9 min read
Four engineering patterns that separate multi-agent from prompt chains

Four engineering patterns that separate multi-agent from prompt chains

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11 min read
Notebook off the cluster: migrating to Spark Connect on EMR on EKS

Notebook off the cluster: migrating to Spark Connect on EMR on EKS

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10 min read
Multi-Region training on HyperPod: how Qumulo's cache hides 60 ms

Multi-Region training on HyperPod: how Qumulo's cache hides 60 ms

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8 min read
Security Hub remediation plans: root-cause remediation, dissected

Security Hub remediation plans: root-cause remediation, dissected

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8 min read
AI Builder in Practice: What It Is, What Changes, and How I Apply It

AI Builder in Practice: What It Is, What Changes, and How I Apply It

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13 min read
Private CA logs every issuance: a field guide to IssueCertificateDetails

Private CA logs every issuance: a field guide to IssueCertificateDetails

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10 min read
SnapStart on containers: the bake-off against provisioned concurrency

SnapStart on containers: the bake-off against provisioned concurrency

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10 min read
Apps in Amazon Quick vs. App Studio vs. a custom build

Apps in Amazon Quick vs. App Studio vs. a custom build

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11 min read
Amazon Connect compact mode: operational density with caution

Amazon Connect compact mode: operational density with caution

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8 min read
MWAA with Airflow 3.3.1: state, language, and operational discipline

MWAA with Airflow 3.3.1: state, language, and operational discipline

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11 min read
DocumentDB 8.0: direct MVU reduces risk, not migration work

DocumentDB 8.0: direct MVU reduces risk, not migration work

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10 min read
PRM by User Agent: better attribution, governance still required

PRM by User Agent: better attribution, governance still required

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9 min read
MediaTailor Analytics: console, BI, or lakehouse?

MediaTailor Analytics: console, BI, or lakehouse?

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10 min read
ADR: bringing governed agents into Amazon Quick

ADR: bringing governed agents into Amazon Quick

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8 min read
Private Redshift SSO with EVR: a pattern teardown

Private Redshift SSO with EVR: a pattern teardown

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8 min read
Migrating Time Series to Timestream for InfluxDB

Migrating Time Series to Timestream for InfluxDB

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10 min read
Active-active Amazon Connect: the resilience lesson

Active-active Amazon Connect: the resilience lesson

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8 min read
Redshift and Iceberg v3: field notes for mutable lakes

Redshift and Iceberg v3: field notes for mutable lakes

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9 min read
Claude Fable 5.1 on AWS: the model that demands an immutable history

Claude Fable 5.1 on AWS: the model that demands an immutable history

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13 min read
InvokeGuardrailChecks vs Classic Guardrails: Which to Use in AI Agents?

InvokeGuardrailChecks vs Classic Guardrails: Which to Use in AI Agents?

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10 min read
Amazon Bedrock AgentCore: Continuous Agent Optimization in Production

Amazon Bedrock AgentCore: Continuous Agent Optimization in Production

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11 min read
Secure Multi-Tenant RAG: ADR for Two-Layer Authorization

Secure Multi-Tenant RAG: ADR for Two-Layer Authorization

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11 min read
Managed Syslog Ingestion in CloudWatch: Anatomy of a Pattern

Managed Syslog Ingestion in CloudWatch: Anatomy of a Pattern

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11 min read
Amazon Bedrock AgentCore Harness: From Idea to Production-Grade Agent

Amazon Bedrock AgentCore Harness: From Idea to Production-Grade Agent

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10 min read
AMI Watermarks: Image Governance at Financial-Grade Scale

AMI Watermarks: Image Governance at Financial-Grade Scale

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10 min read
C7a in Singapore: A Migration Incident Retro for Financial-Grade Systems

C7a in Singapore: A Migration Incident Retro for Financial-Grade Systems

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12 min read
Graviton4 R8g: Global Expansion and What Changes for Memory-Intensive Architectures

Graviton4 R8g: Global Expansion and What Changes for Memory-Intensive Architectures

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10 min read
EC2 R8g in New Regions: Migration Field Guide for Financial Workloads

EC2 R8g in New Regions: Migration Field Guide for Financial Workloads

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12 min read
EC2 R8g and Graviton4: A Technical Deep Dive for Memory-Intensive Workloads

EC2 R8g and Graviton4: A Technical Deep Dive for Memory-Intensive Workloads

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10 min read
The IDE Became the Exception: How I Shifted to Building Loops Instead of Code

The IDE Became the Exception: How I Shifted to Building Loops Instead of Code

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7 min read
AWS WAF on AgentCore Gateway: Production Security for Agentic AI

AWS WAF on AgentCore Gateway: Production Security for Agentic AI

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12 min read
CloudWatch Logs Tag Enrichment vs. Alternative Approaches

CloudWatch Logs Tag Enrichment vs. Alternative Approaches

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11 min read
ADR: Scaling Agents to Production with AgentCore Runtime Quotas

ADR: Scaling Agents to Production with AgentCore Runtime Quotas

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11 min read
IaC for AI Platforms: Terraform and SageMaker Unified Studio

IaC for AI Platforms: Terraform and SageMaker Unified Studio

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9 min read
SageMaker Unified Studio via Terraform: Migrating to IaC in Financial-Grade Environments

SageMaker Unified Studio via Terraform: Migrating to IaC in Financial-Grade Environments

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13 min read
SageMaker Unified Studio + Terraform: IaC for AI Platforms Incident Retro

SageMaker Unified Studio + Terraform: IaC for AI Platforms Incident Retro

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11 min read
SageMaker Unified Studio + Terraform: IaC for Financial-Grade AI Platforms

SageMaker Unified Studio + Terraform: IaC for Financial-Grade AI Platforms

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11 min read
DPD on HyperPod: Disaggregated Prefill and Decode in Production

DPD on HyperPod: Disaggregated Prefill and Decode in Production

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13 min read
GameLift Streams Admin Shell: Secure Live-Session Access Without SSH

GameLift Streams Admin Shell: Secure Live-Session Access Without SSH

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10 min read
AWS Builder Center Sandboxes: Technical Review and Architecture Analysis

AWS Builder Center Sandboxes: Technical Review and Architecture Analysis

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12 min read
OAuth on AWS MCP Server: Auth Strategy Bake-Off for AI Agents

OAuth on AWS MCP Server: Auth Strategy Bake-Off for AI Agents

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12 min read
ADR: Migrating Financial Workloads to EC2 R8i in Tokyo and Frankfurt

ADR: Migrating Financial Workloads to EC2 R8i in Tokyo and Frankfurt

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11 min read
R8i: Anatomy of an Instance Family for I/O-Intensive Workloads

R8i: Anatomy of an Instance Family for I/O-Intensive Workloads

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11 min read
Migrating Financial Workloads to EC2 R8i: Decisions and Trade-offs

Migrating Financial Workloads to EC2 R8i: Decisions and Trade-offs

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12 min read
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