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, training, and other offerings.

Books

The Deeper Love of Go (Go 1.24 early access edition)

$24.95

““The best technical book I have ever read.””

— Josiah Ilesanmi

The Complete Go Library (Go 1.24 edition)

Sale

$179.95 $224.75

““Inspiring and full of good ideas.””

— Ell McPhearson

$44.95

““Gentle, funny, and full of clear explanations.””

— Flavio Balioni

More books

Mentoring

from $149.95

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““John is an amazing teacher.””

— Bukola Jimoh

from $149.95

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““Incredibly supportive.””

— Nina Rives

from $149.95

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““Absolutely great to work with.””

— Leo Rubiano

More mentoring

Training

from $995.00

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Go Live Training for Teams: Introduction to Go

from $995.00

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Posts

Featured

Slow, flaky, and failing

Thou shalt not suffer a flaky test to live, because it’s annoying, counterproductive, and dangerous: one day it might fail for real, and you won’t notice. Here’s what to do.

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

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.