My name is Wayne. I’m a software engineer working at Over in London. I build and scale distributed systems and the teams that work on them. I specialise in Go, Kubernetes, Redis, MySQL & Google Cloud.

Latest Posts

Building Instagram Filters With Go

I gave a talk at the London Gophers meetup about building image filters like those found in Instagram. This talk covers what I learnt while building a reference implementation of a simple rendering engine using pure Go, with no dependencies. I cover various kinds of lookup tables, storage formats and although useful… why it’s probably a bad idea doing this in Go.

Continue reading

How to Introduce Go Into Your Organisation

I gave a talk at the London Gophers meetup about introducing Go into an organisation that has existing systems written in different languages. This comes from years of experience working with teams that were comfortable with other languages like PHP, Ruby and Java.

Continue reading

Zero downtime deployments with Go and Kubernetes

If you’re writing Go then you’re probably aware that graceful shutdown was added to the http package in 1.8. The HTTP server also adds support for graceful shutdown, allowing servers to minimize downtime by shutting down only after serving all requests that are in flight. — Go 1.8 is released Similarly, If you’re using Kubernetes then I’m sure you’re aware of, and hopefully using rolling updates for your deployments.

Continue reading

Beware Firebase Project Limits

Firebase is an incredible platform, some of their recent additions like Cloud Functions for static hosting are pretty amazing. However, I’d like to share a serious blindspot that I came across while preparing for a product launch. The intent of this post is in no way to discourage anyone from using Firebase. I love Firebase and I recommend you give it a go! This is just an important learning that I wanted to share — hopefully it can prevent you from getting stuck in the same position as me.

Continue reading

The Most Exciting Feature of Go 1.8

You might think that the built-in support for gracefully shutting down http servers is reason enough to be excited for the upcoming Go 1.8. It could also be the proposed sub-millisecond GC pauses. Heck, if you’re having refactoring issues on a Google scale then it could be the controversial addition of alias declarations. Based on my experience, working with small teams and people new to Go, Go 1.8 shipping with a default GOPATH is going to be the most groundbreaking of all new features.

Continue reading