DEV Community

Doogal Simpson profile picture

Doogal Simpson

I'm a Senior Staff Engineer and former start-up founder. I'm trying to help developers bridge the gap from technical competence to professional engineering.

Joined Joined on  Personal website https://doogal.dev/page/links
Software Estimation: Why It Fails and How to Fix It
doogal profile

Software Estimation: Why It Fails and How to Fix It

#softwareengineering #agile #scrum #projectmanagement
Comments
4 min read

Want to connect with Doogal Simpson?

Create an account to connect with Doogal Simpson. You can also sign in below to proceed if you already have an account.

Create Account
Already have an account? Sign in
Graph Databases for Real-Time Fraud Detection
doogal profile

Graph Databases for Real-Time Fraud Detection

#graphdatabases #nosql #softwareengineering #database
Comments
4 min read
How Defensive UI Design Prevents Production Outages
doogal profile

How Defensive UI Design Prevents Production Outages

#softwareengineering #devops #uxdesign #systemdesign
Comments
4 min read
Why Exponential Math Breaks Software Scaling
doogal profile

Why Exponential Math Breaks Software Scaling

#softwareengineering #systemdesign #mathematics #computerscience
Comments
3 min read
AI Agent Architecture: Skills, Evals & Dark Factories
doogal profile

AI Agent Architecture: Skills, Evals & Dark Factories

#softwareengineering #aiagents #aiengineering #devops
Comments
4 min read
Premature Optimization: What Donald Knuth Actually Meant
doogal profile

Premature Optimization: What Donald Knuth Actually Meant

#softwareengineering #architecture #systemdesign #programming
Comments
4 min read
Why Software Engineers Prefer YYYY-MM-DD (ISO 8601)
doogal profile

Why Software Engineers Prefer YYYY-MM-DD (ISO 8601)

#softwareengineering #programming #webdev #database
Comments
4 min read
Is 100% Test Coverage Worth It? Realistic Testing Targets
doogal profile

Is 100% Test Coverage Worth It? Realistic Testing Targets

#softwaretesting #codecoverage #softwareengineering #webdev
Comments
3 min read
Why JavaScript Has Quirks (And Why TC39 Can't Fix Them)
doogal profile

Why JavaScript Has Quirks (And Why TC39 Can't Fix Them)

#javascript #webdev #softwareengineering #programming
1
Comments
4 min read
How to Prevent SQL Injection with Parameterized Queries
doogal profile

How to Prevent SQL Injection with Parameterized Queries

#websecurity #databasesecurity #softwareengineering #backend
Comments
4 min read
How to Prompt LLMs for Clean Code Using Trigger Words
doogal profile

How to Prompt LLMs for Clean Code Using Trigger Words

#promptengineering #softwareengineering #webdev #ai
Comments
3 min read
Why the Netflix Keeper Test Hurts Engineering Teams
doogal profile

Why the Netflix Keeper Test Hurts Engineering Teams

#softwareengineering #engineeringmanagement #developerculture #techleadership
Comments
4 min read
Why AI Agents Won't Replace Software Engineers
doogal profile

Why AI Agents Won't Replace Software Engineers

#softwareengineering #systemdesign #aiagents #webdev
Comments
4 min read
How the Luhn Algorithm Validates Credit Cards Instantly
doogal profile

How the Luhn Algorithm Validates Credit Cards Instantly

#softwareengineering #webdev #algorithms #computerscience
Comments
3 min read
How USB-C Power Negotiation Works: Inside the CC Pin
doogal profile

How USB-C Power Negotiation Works: Inside the CC Pin

#hardware #electronics #usbpowerdelivery #engineering
Comments
4 min read
The To-Do Method: Control AI Coding Agents in Your IDE
doogal profile

The To-Do Method: Control AI Coding Agents in Your IDE

#softwareengineering #aicoding #developertools #productivity
Comments
3 min read
Game Theory in Software Engineering: How Cooperation Wins
doogal profile

Game Theory in Software Engineering: How Cooperation Wins

#softwareengineering #gametheory #technicalleadership #careergrowth
Comments
4 min read
8 Levels of AI Autonomy in Software Engineering
doogal profile

8 Levels of AI Autonomy in Software Engineering

#softwareengineering #ai #automation #devops
Comments
4 min read
ETL vs ELT: Why Cheap Cloud Storage Changed Everything
doogal profile

ETL vs ELT: Why Cheap Cloud Storage Changed Everything

#dataengineering #systemdesign #cloudcomputing #softwareengineering
Comments
4 min read
How to Fix the Thundering Herd (Cache Stampede) Problem
doogal profile

How to Fix the Thundering Herd (Cache Stampede) Problem

#systemdesign #caching #softwareengineering #backend
Comments
3 min read
Automate Video Editing with Whisper, LLMs, and FFmpeg
doogal profile

Automate Video Editing with Whisper, LLMs, and FFmpeg

#automation #softwareengineering #ai #ffmpeg
Comments
3 min read
How Quorum Prevents Split-Brain in Distributed Systems
doogal profile

How Quorum Prevents Split-Brain in Distributed Systems

#distributedsystems #systemdesign #database #softwareengineering
Comments
4 min read
Why You Should Never Use a Database as an API
doogal profile

Why You Should Never Use a Database as an API

#architecture #systemdesign #api #microservices
Comments
4 min read
Should You Use Custom ID Types or Plain Strings?
doogal profile

Should You Use Custom ID Types or Plain Strings?

#softwareengineering #cleancode #typesafety #programming
Comments
4 min read
When to Use an ORM vs SQL and Query Builders
doogal profile

When to Use an ORM vs SQL and Query Builders

#database #sql #webdev #softwareengineering
Comments
3 min read
Solving the N+1 Query Problem in Databases and ORMs
doogal profile

Solving the N+1 Query Problem in Databases and ORMs

#database #sql #softwareengineering #databaseperformance
Comments
4 min read
How Collaborative Docs Work: An Introduction to CRDTs
doogal profile

How Collaborative Docs Work: An Introduction to CRDTs

#systemdesign #distributedsystems #softwareengineering #crdt
Comments
3 min read
Boost LLM Accuracy with Self-Correcting Agent Loops
doogal profile

Boost LLM Accuracy with Self-Correcting Agent Loops

#llms #ai #softwareengineering #webdev
Comments
3 min read
LLM vs. AI Agent: Understanding the Difference
doogal profile

LLM vs. AI Agent: Understanding the Difference

#aiagents #llm #softwareengineering #ai
Comments
4 min read
How TypeScript Makes Your JavaScript Run Faster
doogal profile

How TypeScript Makes Your JavaScript Run Faster

#typescript #javascript #webdev #performance
1
Comments
3 min read
How the V8 Engine Optimizes JavaScript at Runtime
doogal profile

How the V8 Engine Optimizes JavaScript at Runtime

#javascript #v8engine #performance #softwareengineering
Comments
4 min read
Conway's Law: How Team Structure Shapes Architecture
doogal profile

Conway's Law: How Team Structure Shapes Architecture

#architecture #systemdesign #softwareengineering #techleadership
Comments
4 min read
How Conway's Law Shapes Your Software Architecture
doogal profile

How Conway's Law Shapes Your Software Architecture

#architecture #softwareengineering #conwayslaw #techleadership
Comments
4 min read
Designing Idempotent APIs and Resilient Pipelines
doogal profile

Designing Idempotent APIs and Resilient Pipelines

#systemdesign #api #softwareengineering #backenddevelopment
Comments
4 min read
Idempotency Explained: Handling Duplicate API Requests
doogal profile

Idempotency Explained: Handling Duplicate API Requests

#softwareengineering #apidesign #systemdesign #backenddevelopment
Comments
4 min read
Why a Day Isn't 86,400 Seconds in Programming
doogal profile

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

#softwareengineering #programming #bestpractices #backend
Comments
4 min read
A* Search Algorithm: Game Pathfinding Explained
doogal profile

A* Search Algorithm: Game Pathfinding Explained

#algorithms #gamedev #computerscience #softwareengineering
Comments
4 min read
Handling ISO Currency Codes in Software
doogal profile

Handling ISO Currency Codes in Software

#softwareengineering #fintech #programming #webdev
Comments
4 min read
How Git Uses Merkle Trees for Fast Verification
doogal profile

How Git Uses Merkle Trees for Fast Verification

#git #softwareengineering #datastructures #versioncontrol
Comments
4 min read
How Merkle Trees Verify Large Files
doogal profile

How Merkle Trees Verify Large Files

#cryptography #datastructures #computerscience #softwareengineering
1
Comments
4 min read
Storing Exchange Rates for Multi-Currency Systems
doogal profile

Storing Exchange Rates for Multi-Currency Systems

#softwareengineering #architecture #databasedesign #ecommerce
1
Comments
3 min read
Merkle Trees Explained: How We Verify Large Files
doogal profile

Merkle Trees Explained: How We Verify Large Files

#softwareengineering #computerscience #datastructures #cryptography
Comments
5 min read
Correct by Design vs Correct by Coincidence
doogal profile

Correct by Design vs Correct by Coincidence

#softwareengineering #cleancode #refactoring #architecture
Comments
3 min read
How to Represent Money in Software
doogal profile

How to Represent Money in Software

#softwareengineering #architecture #programmingtips #computerscience
2
Comments
3 min read
How DRAM Works: The 64ms Memory Refresh Cycle
doogal profile

How DRAM Works: The 64ms Memory Refresh Cycle

#computerscience #hardware #computerarchitecture #softwareengineering
Comments
4 min read
Engineering Intuition: Knowing When to Refactor
doogal profile

Engineering Intuition: Knowing When to Refactor

#softwareengineering #refactoring #cleancode #codequality
Comments
4 min read
Why Code Documentation Is a First-Class Citizen
doogal profile

Why Code Documentation Is a First-Class Citizen

#softwareengineering #documentation #cleancode #aiagents
Comments
4 min read
Agile is a Mindset, Not Endless Sprint Meetings
doogal profile

Agile is a Mindset, Not Endless Sprint Meetings

#agile #softwareengineering #scrum #agilemethodology
Comments
4 min read
Good Enough Software: Balancing Quality and Time to Market
doogal profile

Good Enough Software: Balancing Quality and Time to Market

#softwareengineering #bestpractices #startup #programming
Comments
3 min read
The Physics of Phone Cameras: Photons to Pixels
doogal profile

The Physics of Phone Cameras: Photons to Pixels

#hardware #computervision #engineering #mobiledevelopment
Comments
4 min read
Why OLED Screen Burn-In Looks Yellow
doogal profile

Why OLED Screen Burn-In Looks Yellow

#hardware #oled #techexplained #engineering
Comments
4 min read
djb2 Hash Function: String to Integer Algorithm Explained
doogal profile

djb2 Hash Function: String to Integer Algorithm Explained

#algorithms #hashfunctions #datastructures #computerscience
Comments
4 min read
Microsoft Project Silica: Storing Data in Glass
doogal profile

Microsoft Project Silica: Storing Data in Glass

#projectsilica #datastorage #hardware #machinelearning
Comments
4 min read
Microsoft Project Silica: Glass Storage Explained
doogal profile

Microsoft Project Silica: Glass Storage Explained

#projectsilica #datastorage #hardware #softwareengineering
1
Comments
4 min read
Blue-Green Deployments: Instant Rollbacks & Zero Downtime
doogal profile

Blue-Green Deployments: Instant Rollbacks & Zero Downtime

#devops #softwareengineering #systemdesign #cicd
Comments
4 min read
Debugging Microservices with Distributed Tracing
doogal profile

Debugging Microservices with Distributed Tracing

#distributedtracing #microservices #softwareengineering #debugging
Comments 1
3 min read
Database Internals: How Data is Stored in Pages
doogal profile

Database Internals: How Data is Stored in Pages

#database #backend #systemdesign #softwareengineering
Comments
4 min read
Single Responsibility Principle for AI Sub-Agents
doogal profile

Single Responsibility Principle for AI Sub-Agents

#aiagents #architecture #softwareengineering #ai
Comments 2
4 min read
How Database Reads Work: Pages, Buffer Pools, and Disk
doogal profile

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

#database #softwareengineering #backend #sql
Comments
4 min read
How Database Inserts Work: WAL and Buffer Pools
doogal profile

How Database Inserts Work: WAL and Buffer Pools

#database #backend #systemdesign #softwareengineering
Comments
4 min read
loading...