Josh Sephton


Pritchatts Consulting


August 2018 — Present

Using all of the skills learnt over my career, I started consulting with clients on technology projects. I specialise in solving tough problems, primarily with early stage startups or failing projects.

  • Vet-AI

    This early stage startup had the vision to use groundbreaking technologies to reshape the animal health industries. I was brought in to take the idea to market and to raise a Series A round. Working closely with the board, I was responsible for: hiring an engineering team; setting a technical strategy; implementing a process to help the business achieve their goals.

    As a result, the team went from idea to revenue generating within 9 months and had raised £2.3M within 12 months.

  • Hilton

    The marketing team had a number of high-traffic websites which they wanted to consolidate to a single development partner. They didn't have anyone technical on the team so they asked me to review and audit the state of their technology. After I helped them understand the lay of the land, I continued to help them move their platforms to the new provider.

    The team were able to understand how their technology had been built and were able to identify a new partner.

  • McCann

    The team at this digital agency had built an app to provide real-time information about public transport. However, the app was calling a third-party API which charged for each request. The operating costs spiralled to more than £50,000 per month. I spent 1 week researching techniques for caching real-time data.

    The team were able to reduce the number of calls to the API (and hence operating costs) by 95%.

Push Doctor

Head of AI

April 2017 — August 2018

As Head of AI, I was responsible for setting the Artificial Intelligence strategy at Push Doctor. I worked with the C-Suite to develop a roadmap of products to provide a stategic advantage.

  • Customer Service Chatbot

    I created a bespoke chatbot (using Go and Python) to handle simple customer service queries. It was built rapidly to demonstrate the value of a Machine Learning system which would get more accurate over time.

    The project reduced the load on the Customer Service team by 20%.

  • Automatic Consultation Transcription

    To create a data lake to power further work (such as automatic condition diagnosis), I built a pipeline to transcribe all patient consultations in realtime. It was built as a microservice to allow for infinite scalability.

    The project reached a throughput of 5TB of video data per month.


Senior Developer

August 2016 — April 2017

As Senior Developer, I was responsible for planning and implementing projects to support price comparison websites powered by microservices, written in Go and Java, running on Kubernetes using Docker.

  • Automated PPC Campaigns

    I architected a large, distributed system to manage hundreds of millions of adverts in AdWords and Bing. It was built around a PubSub queue and a NoSQL database. The processing pipeline ran at 1000 ops/sec.

    The project saved Redbrain £0.5M in expenditure per year.


Principal Engineer

August 2015 — August 2016


March 2014 — August 2015

As Principal Engineer, I was reponsible for designing systems to a brief from a client. I led a team of Engineers to build websites and apps in PHP (using WordPress and Laravel), JavaScript (using Angular and React).

We specialised in product development, working from idea to minimum viable product to launch, using the build-measure-learn iterative cycle. I successfully led projects to bring products to market for clients like InMotion at Jaguar Land Rover, Hilton, and Cornerstone.

Exploding Phone

iOS Developer

February 2012 — March 2014

As iOS Developer, I was responsible for building native apps for clients. As there was often no design, I had to carefully consider UX and design as I built the apps. I analysed business requirements and developed specifications defining and scoping project requirements. I worked to timelines to successfully manage project delivery within agreed-upon time frame and budget.



March 2019

Birmingham AI Meetup

November 2017


July 2016
Chatbots: A Revolution 60 Years in the Making

Voxxed Days, Zurich

March 2016
React - A trip to Russia isn't all it seeems


January 2015
Prototyping and Iterating an API


Uni. of Birmingham

2009 — 2012
Theoretical Physics & Applied Maths

St Edwards School

2004 — 2008
A Level

Mathematics — A; Further Mathematics — A;
Physics — A; Chemistry — B.