Johnny Dexter Morrison-Howe

BSc (Hons) Computer Science University of Portsmouth

Java Developer Ultumus

Hello, World!

I'm a London-based Software Engineer currently working as a Developer for Ultumus, the leading provider of ETF and index data. I primarily work with Java in a serverless AWS environment.

Prior to Ultumus and moving to London, I worked for Novatech, a Portsmouth-based company specialising in custom hardware and managed IT services. There I used a Swing/Wildfly/MSSQL stack as well as some web work with HTML and PHP.

Portsmouth was also the university where I studied Computer Science. I wrote a Kotlin-based Android application for podcast scrobbling, completed a 14-month industrial placement with IBM, and landed a 2:1.

I've always been a keen mountain biker, and while living in Portsmouth I spent many Sundays volunteering with the QECP Trail Collective, helping to maintain and improve the trails in the area. Moving to London has made mountain biking significantly less convenient, but has allowed more time for the amateur DJ in me to flourish... I suppose I'm into both forests and jungle :)

Things I've made, where I've been

Ultumus

APR 2025 -

Ongoing maintenance, Index and ETF builds, and new features. Java and AWS, using mostly Lambdas and DynamoDB. Data normalisation at an enormous scale, with tens of thousands of funds and indices passing through 24/7. All different kinds of data formats in, uniform JSON out.

Novatech

FEB 2023 - MAR 2025

Most projects were maintenance and additions to Unity, our CRM-turned-everything-app on a Swing/Wildfly/MSSQL stack. At this point it almost handles every business function (and it will not stop growing until it does). I also worked on two sister stacks, one with a HTML/PHP frontend for client-facing websites, and one exposing an API for client applications. Below are a few highlights:

IBM UK Labs

JUL 2021 - AUG 2022

Final Year Project - Podcast Scrobbler

Personal Projects

Very early projects to kickstart my coding experience during and in the summer of my first year at University