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John Vester

Information Technology professional with 25+ years expertise in enterprise architecture/application design, application development, project management, system administration and team supervision.

Work

Sr Staff Software Engineer @ Marqeta

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4 Week Writing Streak
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What Is Agentic Test Creation and How Is It Different from AI Test Generation?

What Is Agentic Test Creation and How Is It Different from AI Test Generation?

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7 min read
The Future of Agentic AI

The Future of Agentic AI

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8 min read
Effectively Managing AI Agents for Testing

Effectively Managing AI Agents for Testing

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7 min read
Demystifying Agentic Test Automation for QA Teams

Demystifying Agentic Test Automation for QA Teams

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5 min read
Why the MITRE ATT&CK Framework Actually Works

Why the MITRE ATT&CK Framework Actually Works

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6 min read
Why Enterprise AI Needs Agentic Messaging Platforms

Why Enterprise AI Needs Agentic Messaging Platforms

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10 min read
Beyond Code: How to Use AI to Modernize Software Architecture

Beyond Code: How to Use AI to Modernize Software Architecture

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8 min read
Bring Your Own Feed (BYOF): An Engineer's Guide to Effective Threat Intelligence

Bring Your Own Feed (BYOF): An Engineer's Guide to Effective Threat Intelligence

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7 min read
One Checkbox to Cloud: Migrating from Tosca DEX Agents to E2G

One Checkbox to Cloud: Migrating from Tosca DEX Agents to E2G

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5 min read
How to Banish Anxiety, Lower MTTR, and Stay on Budget During Incident Response

How to Banish Anxiety, Lower MTTR, and Stay on Budget During Incident Response

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6 min read
Exploring Cloud-Based Testing with the Elastic Execution Grid

Exploring Cloud-Based Testing with the Elastic Execution Grid

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6 min read
The Missing Infrastructure Layer: Why AI's Next Evolution Requires Distributed Systems Thinking

The Missing Infrastructure Layer: Why AI's Next Evolution Requires Distributed Systems Thinking

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5 min read
How To Introduce a New API Quickly Using Micronaut

How To Introduce a New API Quickly Using Micronaut

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10 min read
How To Introduce a New API Quickly Using Quarkus and ChatGPT

How To Introduce a New API Quickly Using Quarkus and ChatGPT

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11 min read
Solid Testing Strategies for Salesforce Releases

Solid Testing Strategies for Salesforce Releases

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8 min read
How To Introduce a New API Quickly Using Spring Boot and Maven

How To Introduce a New API Quickly Using Spring Boot and Maven

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8 min read
How To Introduce a New API Quickly Using Spring Boot and Gradle

How To Introduce a New API Quickly Using Spring Boot and Gradle

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10 min read
Simplifying Multi-LLM Integration with KubeMQ: The Path to Scalable AI Solutions

Simplifying Multi-LLM Integration with KubeMQ: The Path to Scalable AI Solutions

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6 min read
Working with Vision AI to Test Cloud Applications

Working with Vision AI to Test Cloud Applications

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5 min read
How to Test QR Codes in Your Applications

How to Test QR Codes in Your Applications

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5 min read
When (Tech Service) Relationships Don’t Work Out

When (Tech Service) Relationships Don’t Work Out

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5 min read
5 Signs You’ve Built a Secretly Bad Architecture (And How to Fix It)

5 Signs You’ve Built a Secretly Bad Architecture (And How to Fix It)

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9 min read
The Power of Market Disruption: How to Detect Fraud With Graph Data

The Power of Market Disruption: How to Detect Fraud With Graph Data

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8 min read
Why Haven’t You Upgraded to HTTP/2?

Why Haven’t You Upgraded to HTTP/2?

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5 min read
Leveling Up My GraphQL Skills: Real Time Subscriptions

Leveling Up My GraphQL Skills: Real Time Subscriptions

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8 min read
Mastering Multi-Cloud and Edge Data Synchronization: A Retail Use Case with KubeMQ’s Java SDK

Mastering Multi-Cloud and Edge Data Synchronization: A Retail Use Case with KubeMQ’s Java SDK

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5 min read
Buh-Bye Webpack and Node.js, Hello Rails and Import Maps

Buh-Bye Webpack and Node.js, Hello Rails and Import Maps

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6 min read
From Observability to Architectural Observability—Shifting Left for Resiliency

From Observability to Architectural Observability—Shifting Left for Resiliency

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6 min read
Why You Need to Shift-left with Mobile Testing

Why You Need to Shift-left with Mobile Testing

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6 min read
When You Need More Power Than a Lambda Provides

When You Need More Power Than a Lambda Provides

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5 min read
Managing Architectural Tech Debt

Managing Architectural Tech Debt

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6 min read
Less Time Learning, More Time Building

Less Time Learning, More Time Building

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5 min read
When It’s Time to Give REST a Rest

When It’s Time to Give REST a Rest

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8 min read
FastAPI Got Me an OpenAPI Spec Really... Fast

FastAPI Got Me an OpenAPI Spec Really... Fast

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8 min read
DevSecOps: It’s Time To Pay For Your Demand – Not Ingestion

DevSecOps: It’s Time To Pay For Your Demand – Not Ingestion

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5 min read
Using pgvector To Locate Similarities In Enterprise Data

Using pgvector To Locate Similarities In Enterprise Data

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11 min read
Build a Flow Collectibles Portal Using Cadence (Part 2)

Build a Flow Collectibles Portal Using Cadence (Part 2)

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9 min read
Build a Digital Collectibles Portal Using Flow and Cadence (Part 1)

Build a Digital Collectibles Portal Using Flow and Cadence (Part 1)

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14 min read
Exploring the Horizon of Microservices with KubeMQ's New Control Center

Exploring the Horizon of Microservices with KubeMQ's New Control Center

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4 min read
Using Unblocked to Fix a Service That Nobody Owns

Using Unblocked to Fix a Service That Nobody Owns

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5 min read
How to Crush API Dev Work when You're 100% Remote with Postman

How to Crush API Dev Work when You're 100% Remote with Postman

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7 min read
Optimize Your Web3 DevOps with User Feedback Forms

Optimize Your Web3 DevOps with User Feedback Forms

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6 min read
Bridging the Gap: Better Token Standards for Cross-chain Assets

Bridging the Gap: Better Token Standards for Cross-chain Assets

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11 min read
Simplifying Blockchain Development by using Abstraction

Simplifying Blockchain Development by using Abstraction

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6 min read
Build a Flow Collectibles Portal Using Cadence (Part 2)

Build a Flow Collectibles Portal Using Cadence (Part 2)

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10 min read
Build a Serverless App Fast with Zipper: Write TypeScript, Offload Everything Else

Build a Serverless App Fast with Zipper: Write TypeScript, Offload Everything Else

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9 min read
Build a Digital Collectibles Portal Using Flow and Cadence (Part 1)

Build a Digital Collectibles Portal Using Flow and Cadence (Part 1)

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13 min read
5 Web3 Trends We Saw in 2023

5 Web3 Trends We Saw in 2023

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6 min read
Improving Customer-Facing App Quality Using Tricentis Testim

Improving Customer-Facing App Quality Using Tricentis Testim

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7 min read
Building Better dapps with Infura’s Polygon WebSocket

Building Better dapps with Infura’s Polygon WebSocket

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6 min read
(Spring) Booting Java to Accept Digital Payments with USDC

(Spring) Booting Java to Accept Digital Payments with USDC

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8 min read
An Overview of Kubernetes Security Projects at KubeCon Europe 2023

An Overview of Kubernetes Security Projects at KubeCon Europe 2023

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7 min read
Write a Smart Contract with ChatGPT MetaMask Infura, and Truffle

Write a Smart Contract with ChatGPT MetaMask Infura, and Truffle

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11 min read
Smart Contract Audits with ConsenSys Diligence Fuzzing - Fuzzing as a Service

Smart Contract Audits with ConsenSys Diligence Fuzzing - Fuzzing as a Service

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7 min read
The power of zero-knowledge proofs - exploring the new ConsenSys zkEVM

The power of zero-knowledge proofs - exploring the new ConsenSys zkEVM

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5 min read
Top 10 Resources for Learning Solidity

Top 10 Resources for Learning Solidity

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6 min read
Time For Me To Fly… To Render

Time For Me To Fly… To Render

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8 min read
Better Performance and Security by Monitoring Logs, Metrics, and More

Better Performance and Security by Monitoring Logs, Metrics, and More

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10 min read
The Journey to Becoming a Rockstar Salesforce Developer

The Journey to Becoming a Rockstar Salesforce Developer

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8 min read
The Everything Guide to Data Collection in DevSecOps

The Everything Guide to Data Collection in DevSecOps

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8 min read
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