Doogal Simpson - DEV Community

Doogal Simpson

Jul 20

How to Fix the Thundering Herd (Cache Stampede) Problem

#systemdesign #caching #softwareengineering #backend

3 min read

Doogal Simpson

Jul 19

Automate Video Editing with Whisper, LLMs, and FFmpeg

#automation #softwareengineering #ai #ffmpeg

3 min read

Doogal Simpson

Jul 19

How Quorum Prevents Split-Brain in Distributed Systems

#distributedsystems #systemdesign #database #softwareengineering

4 min read

Doogal Simpson

Jul 19

Why You Should Never Use a Database as an API

#architecture #systemdesign #api #microservices

4 min read

Doogal Simpson

Jul 19

Should You Use Custom ID Types or Plain Strings?

#softwareengineering #cleancode #typesafety #programming

4 min read

Doogal Simpson

Jul 19

When to Use an ORM vs SQL and Query Builders

#database #sql #webdev #softwareengineering

3 min read

Doogal Simpson

Jul 19

Solving the N+1 Query Problem in Databases and ORMs

#database #sql #softwareengineering #databaseperformance

4 min read

Doogal Simpson

Jul 19

How Collaborative Docs Work: An Introduction to CRDTs

#systemdesign #distributedsystems #softwareengineering #crdt

3 min read

Doogal Simpson

Jul 19

Boost LLM Accuracy with Self-Correcting Agent Loops

#llms #ai #softwareengineering #webdev

3 min read

Doogal Simpson

Jul 19

LLM vs. AI Agent: Understanding the Difference

#aiagents #llm #softwareengineering #ai

4 min read

Doogal Simpson

Jul 19

How TypeScript Makes Your JavaScript Run Faster

#typescript #javascript #webdev #performance

1

3 min read

Doogal Simpson

Jul 19

How the V8 Engine Optimizes JavaScript at Runtime

#javascript #v8engine #performance #softwareengineering

4 min read

Doogal Simpson

Jul 19

Conway's Law: How Team Structure Shapes Architecture

#architecture #systemdesign #softwareengineering #techleadership

4 min read

Doogal Simpson

Jul 19

How Conway's Law Shapes Your Software Architecture

#architecture #softwareengineering #conwayslaw #techleadership

4 min read

Doogal Simpson

Jul 18

Designing Idempotent APIs and Resilient Pipelines

#systemdesign #api #softwareengineering #backenddevelopment

4 min read

Doogal Simpson

Jul 18

Idempotency Explained: Handling Duplicate API Requests

#softwareengineering #apidesign #systemdesign #backenddevelopment

4 min read

Doogal Simpson

Jul 18

Why a Day Isn't 86,400 Seconds in Programming

#softwareengineering #programming #bestpractices #backend

4 min read

Doogal Simpson

Jul 18

A* Search Algorithm: Game Pathfinding Explained

#algorithms #gamedev #computerscience #softwareengineering

4 min read

Doogal Simpson

Jun 27

Handling ISO Currency Codes in Software

#softwareengineering #fintech #programming #webdev

4 min read

Doogal Simpson

Jun 27

How Git Uses Merkle Trees for Fast Verification

#git #softwareengineering #datastructures #versioncontrol

4 min read

Doogal Simpson

Jun 26

How Merkle Trees Verify Large Files

#cryptography #datastructures #computerscience #softwareengineering

1

4 min read

Doogal Simpson

Jun 26

Storing Exchange Rates for Multi-Currency Systems

#softwareengineering #architecture #databasedesign #ecommerce

1

3 min read

Doogal Simpson

Jun 23

Merkle Trees Explained: How We Verify Large Files

#softwareengineering #computerscience #datastructures #cryptography

5 min read

Doogal Simpson

Jun 23

Correct by Design vs Correct by Coincidence

#softwareengineering #cleancode #refactoring #architecture

3 min read

Doogal Simpson

Jun 23

How to Represent Money in Software

#softwareengineering #architecture #programmingtips #computerscience

2

3 min read

Doogal Simpson

Jun 21

How DRAM Works: The 64ms Memory Refresh Cycle

#computerscience #hardware #computerarchitecture #softwareengineering

4 min read

Doogal Simpson

Jun 21

Engineering Intuition: Knowing When to Refactor

#softwareengineering #refactoring #cleancode #codequality

4 min read

Doogal Simpson

Jun 20

Why Code Documentation Is a First-Class Citizen

#softwareengineering #documentation #cleancode #aiagents

4 min read

Doogal Simpson

Jun 19

Agile is a Mindset, Not Endless Sprint Meetings

#agile #softwareengineering #scrum #agilemethodology

4 min read

Doogal Simpson

Jun 19

Good Enough Software: Balancing Quality and Time to Market

#softwareengineering #bestpractices #startup #programming

3 min read

Doogal Simpson

Jun 19

The Physics of Phone Cameras: Photons to Pixels

#hardware #computervision #engineering #mobiledevelopment

4 min read

Doogal Simpson

Jun 18

Why OLED Screen Burn-In Looks Yellow

#hardware #oled #techexplained #engineering

4 min read

Doogal Simpson

Jun 18

djb2 Hash Function: String to Integer Algorithm Explained

#algorithms #hashfunctions #datastructures #computerscience

4 min read

Doogal Simpson

Jun 18

Microsoft Project Silica: Storing Data in Glass

#projectsilica #datastorage #hardware #machinelearning

4 min read

Doogal Simpson

Jun 14

Microsoft Project Silica: Glass Storage Explained

#projectsilica #datastorage #hardware #softwareengineering

1

4 min read

Doogal Simpson

Jun 14

Blue-Green Deployments: Instant Rollbacks & Zero Downtime

#devops #softwareengineering #systemdesign #cicd

4 min read

Doogal Simpson

Jun 14

Debugging Microservices with Distributed Tracing

#distributedtracing #microservices #softwareengineering #debugging

1

3 min read

Doogal Simpson

Jun 12

Database Internals: How Data is Stored in Pages

#database #backend #systemdesign #softwareengineering

4 min read

Doogal Simpson

Jun 12

Single Responsibility Principle for AI Sub-Agents

#aiagents #architecture #softwareengineering #ai

2

4 min read

Doogal Simpson

Jun 12

How Database Reads Work: Pages, Buffer Pools, and Disk

#database #softwareengineering #backend #sql

4 min read

Doogal Simpson

Jun 11

How Database Inserts Work: WAL and Buffer Pools

#database #backend #systemdesign #softwareengineering

4 min read

Doogal Simpson

Jun 11

Database Transaction Isolation Levels Explained

#database #postgres #backend #softwareengineering

4 min read

Doogal Simpson

Jun 11

Consistent Hashing Explained: How Netflix Scales

#systemdesign #distributedsystems #softwareengineering #backend

4 min read

Doogal Simpson

Jun 11

AI Code Refactoring: Why Testing Still Matters

#softwareengineering #refactoring #softwaretesting #generativeai

2

4 min read

Doogal Simpson

Jun 10

Count-Min Sketch Explained: Trillions of Counters

#datastructures #algorithms #systemdesign #softwareengineering

4 min read

Doogal Simpson

Jun 10

Apple Secure Enclave: Face ID Security Explained

#security #softwareengineering #systemarchitecture #iosdevelopment

3 min read

Doogal Simpson

Jun 10

How Face ID Adapts to Beards and Facial Changes

#faceid #biometrics #algorithms #softwareengineering

3 min read

Doogal Simpson

Jun 8

Optimize Your Codebase for AI Coding Agents

#softwareengineering #cleancode #promptengineering #generativeai

1

4 min read

Doogal Simpson

Jun 8

Prompting AI Coding Agents to Write Clean Code

#aicoding #promptengineering #cleancode #softwareengineering

1

4 min read

Doogal Simpson

Jun 8

Why COBOL Still Powers Modern Banking Systems

#cobol #legacycode #techdebt #softwareengineering

1

4 min read

Doogal Simpson

Jun 7

How OLED & LTPO Enable Always-On Displays

#hardware #smartphones #mobiledevelopment #techexplained

3 min read

Doogal Simpson

Jun 7

Why Mobile CPUs Have Performance & Efficiency Cores

#computerarchitecture #processors #mobiledevelopment #softwareengineering

4 min read

Doogal Simpson

Jun 7

Amdahl's Law: Why More CPU Cores Don't Make Code Faster

#computerscience #softwareengineering #parallelcomputing #performanceoptimization

3 min read

Doogal Simpson

Jun 6

Why Quantum Computers Won't Replace Classical Computing

#quantumcomputing #computerscience #cryptography #softwareengineering

3 min read

Doogal Simpson

Jun 6

Spotify's Approximate Nearest Neighbor Search

#systemdesign #algorithms #softwareengineering #machinelearning

4 min read

Doogal Simpson

May 11

How Face ID Works: Infrared Lasers & Neural Networks

#computervision #neuralnetworks #machinelearning #authentication

1

4 min read

Doogal Simpson

Mar 28

Networking Logic: How Your Data Navigates the Internet

#networking #internetinfrastructure #computerscience

3 min read

Doogal Simpson

Mar 28

What About Second HTTP? Solving the 100-File Connection Bottleneck

#webdev #http2 #networking

4 min read

Doogal Simpson

Mar 28

The 600ms Tax: Why Every TCP Connection Starts with a State Negotiation

#networking #tcp #webperf

1

4 min read

Doogal Simpson

Mar 28

TCP Exponential Backoff: Why Your Retries are Doubling

#networking #tcp #softwareengineering

1

4 min read

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