About

Me

I’m a technology executive focussed on retail and the customer with a background in data science, analytics, and engineering. Currently, as CTO at Jollyes, I oversee the tech infrastructure for 100+ stores, from payment systems to data insights for the board and PE investors. Previously, I led marketing data science at Sainsbury’s, personalising offers 1-2-1 to the customer to drive millions in marketing value and optimizing digital ad spend.

I hold a PhD in Biology from the John Innes Centre, where I worked on big data analysis and statistical modeling (open access papers here). I’ve recently finished volunteering at United Kingdom Biology Competitions after 10 years (5 of which as Chair). We provided biology exams for 70,000+ students and 1,000+ schols annually. I’m actively seeking new volunteering opportunities for the public benefit, so if you need education, technology, retail, biology, or data experience please reach out.

Here’s a copy of my one-page CV.

Site

Here, is an archive of my scientific publications with free-to-access PDFs of all the works I am assoicated with. As well as a collection of posts about hobbies, from statistical riddles to homebrew.

Contact me

hello@matthew-johnston.com

Correct as of 01/03/2025