Blog Archives

Difficult bugs

I’ve been working on an interesting chapter of my upcoming book about programmer interviews. The chapter is titled “The usual suspects” and in it I’m writing about some of the difficult bugs programmers will all face, sooner or later. I’ve

Posted in Programming, Software Development

If I code faster it is by copying the code of giants

I’ve never been expert at DIY, but I’ve always been willing to give things a go. I once replaced the floorboards in an Edwardian terraced house. This was memorable because while cutting a board with a circular saw I managed

Posted in Programming, Software Development

Programming expertise, it’s all about the turtles

When I’m asked at an interview to talk about my weaknesses, I usually say that apart from being a perfectionist (said with irony) I can sometimes be too analytical. Being analytical as a programmer is a major advantage, but I’m told

Posted in Interviewing, Programming, Software Development

Writing unit tests for legacy code – an open letter to developers I work with

This is an email I sent today to developers who work with me, it is exactly as I wrote it except for project and developer names which I’ve redacted. Dear Developers, S asked me a difficult question today, and I

Posted in Programming, Software Development, Software Management

Ed Guiness

I am the author of Ace the Programming Interview, published 2013 by John Wiley and Sons. In 2012 I founded SocialCoder.org, a volunteering organisation for programmers. I have been a professional programmer for more than 20 years, and a hiring manager since 2004.

Ask me anything.