The story behind one of the few British tech businesses to make it big. Ocado has made it to the FTSE 100, the index of Britain’s biggest companies, and expanded around the world. But along the way the online grocery company and its boss Tim Steiner have faced big challenges, big questions and big rivals.

How did Tim Steiner’s background in finance help? Has the grocery market changed slower than he expected? Why did Ocado and Waitrose split? What is the one bit of advice he would give his younger self? Find out all this and more as we speak to the co-founder and chief executive of Ocado…