arwa

I like building things. I’m still figuring out the rest.

This is where I write about work, learning, and whether what we build is helping people.

Writing

How cool is that?

During an air-quality module in my MSc, I started using R and open-source libraries. I still remember how cool it was to build the graphics from scratch. That work became my MSc thesis, and later a paper I coauthored with my supervisors.

An NOx wind plot over a map of Headingley, Leeds. Colours show concentration, compass directions show wind direction, and concentric rings show wind speed. The original legend and Google map credits are visible.

A660 Headingley, Leeds. Colour shows NOx concentration, angle shows wind direction, and radius shows wind speed. The map and plot use different scales.

Sayegh, Tate & Ropkins · EPUK presentation, 2014. Plotted with openair (Carslaw & Ropkins, 2012).

Things I want to write about next

  1. What does building independently actually cost?

  2. Where do you start when you want to build something?

  3. To sell or not to sell?

About

how it went for me
mathstransporttelecommediamathstransporttelecommedia

Maths was much harder than I expected.

I chose it because I thought I was good at it. It was mentally tough, but I liked the logical thinking. Transport planning came next, by chance, followed by an MSc and a PhD.

At Virgin Media, I helped build the data platform behind a real-time location product in O2 Motion. One use was estimating crowd sizes during the 2022 Jubilee from anonymised, aggregated mobile-network data.

Before that, I had no idea how real-time insights were delivered. Working with data engineers and colleagues in sales and product, I learned how to design a platform that could grow with demand, and how critical the data could be during live events.

I like changing topics and working with different people. I’ve been fortunate to have room to experiment and take risks. That shaped how things went for me.