Richard Dalton

I build things and write about programming.

Freelance developer and trainer with a passion for programming, language design, and software craftsmanship. Founder of devjoy. Because if you're not enjoying software development, you're not doing it right.

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Richard Dalton

Projects

PathWrite

A headless, framework-agnostic path engine for multi-step flows. Define your steps, guards, and validation as pure TypeScript. Render them in React, Vue, Angular, Svelte, SolidJS, or React Native.

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AuthWrite

A zero-dependency TypeScript authorization library. Define policies as plain TypeScript objects and evaluate them anywhere. Runs in Node, edge, or browser.

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RuleWrite

A composable business rules library for TypeScript, inspired by the Specification Pattern. Define rules once, combine them freely, and evaluate and explain their outcomes anywhere in your application.

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More Projects

Recent Posts

April 10, 2026

Testing Async Code in C#: What's Changed

February 6, 2017

Reading F#

August 7, 2015

Unit Testing Events And Callbacks In C#

January 24, 2015

Avoid Branches In Your Code

January 7, 2015

Mastermind: The Code Breaking Game

October 23, 2014

The Best Job I've Ever Had

All Posts

Series

F# Active Patterns

Active Patterns are one of the killer features of F#. They can be a little confusing at first. This series of posts will help you to master them.

Thinking Functionally

I wrote these posts while first learning about functional programming. The posts are simple to follow because I didn't know enough to make them complicated.

Meet The Team

Richard Dalton

Richard Dalton

Experienced Software Developer, Trainer and Mentor including three years as a bootcamp instructor. Responsible for content creation, delivering online and in-person training, bespoke software development and consulting.

Sandra O'Callaghan

Sandra O'Callaghan

A software development background that led naturally into bookkeeping and finance. Manages all of Devjoy’s finances and operations, and specialises in identifying and automating manual processes in finance. She brings a developer’s eye to a domain that still runs on too many spreadsheets.

Testimonials

  • So Richard Dalton’s talk was stand out, absolutely hit the nail on the head.Covered points i’d not even considered.Well done.

    Kirsty Busfield
    Kirsty Busfield

    Attendee, DDD North

  • I’ll never look at code in quite the same way again

    Amy
    Amy

    Attendee, DDD South West

  • Best talk I went to lately. Very poignant, great storytelling skills!

    John McIntyre
    John McIntyre

    Attendee, DDD North

  • SUPERB talk on Burnout by Richard Dalton – someone should get a video made for HR departments to see.

    Joel Hammond-Turner
    Joel Hammond-Turner

    Software Architect