Lewis is a front-end developer with a specialisation in developing A/B tests. Having created hundreds of tests for our clients, ranging from small features to full page redesigns, he has plenty of experience in tackling the technical problems unique to A/B testing.

Each platform does things a little differently from a technical standpoint so good platform knowledge is essential to getting the most out of your experiments. In addition to knowing his way around a code editor, Lewis has gained development experience in nearly every major platform and is even a fully-certified Optimizely developer (one of just a few in the UK).