John Arundel

Hi, I’m John Arundel, programming mentor and author of various books on software engineering and tech careers. I’ve been writing software for about 40 years, and I think I’m starting to figure out how to do it.

I’ve trained developers and teams at Google, VMware, GitHub, HashiCorp, Pivotal, Gruntwork, Nginx, JPMorgan Chase, Facebook, Elastic, Grafana Labs, GoCardless, Cisco, Pythian, Intuit, and dozens of other successful companies (maybe yours, too).

Read on to find out more about my books, mentoring, and other offerings.

 
 

Books

For the Love of Go (Go 1.23 edition)
$44.95
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““The best technical book I have ever read.””
— Josiah Ilesanmi
The Complete Go Library (Go 1.23 edition)
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$179.95 $224.75
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““Inspiring and full of good ideas.””
— Ell McPhearson
The Secrets of Rust: Tools (early access edition)
$39.95
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““Gentle, funny, and full of clear explanations.””
— Flavio Balioni
 

Mentoring

Go mentoring
from $149.95
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““John is an amazing teacher.””
— Bukola Jimoh
Focus & growth mentoring
from $149.95
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““Incredibly supportive.””
— Nina Rives
Rust mentoring
from $149.95
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““Absolutely great to work with.””
— Leo Rubiano
 

Posts

Featured
How to know when it's time to go
How to know when it's time to go

Leaving a job is never easy, and it’s a consequential decision. But when it’s time, it’s time. Here’s how to escape the comfort trap, and take the next step in your career.

The magic function
The magic function

How do you design user-friendly APIs in Rust? The answer is easy: you use them! Let’s build a simple Rust CLI tool using what I call the “magic function” approach.

What are the best Go books in 2025?
What are the best Go books in 2025?

What are the best Go books this year? Read my (relatively) unbiased recommendations for the Go books you should absolutely buy and read right now, whether you’re a beginner or expert Gopher.