Fabian Bindley

Fabian Bindley

Hi, I'm Fabian - a Software Engineer at Chase UK and a 2025 MEng Computer Science graduate from University College London (UCL) 🏛️.

Skills

Java, SpringBoot, Python, ReactJS, ReactNative, C, with hands-on experience in backend engineering, testing, observability and CI/CD.

Projects

TrainTrack Live - Real-Time UK Train Information Platform

TrainTrack Live is a production-grade mobile app and web platform for tracking live UK rail services. Powered by official National Rail data, it delivers real-time departures, arrivals, delay updates, and service progress with a fast, minimal interface.

I architected and built the full stack system end-to-end: a React Native mobile app, an Express.js backend, a Kafka-consumer service composition pipeline, a OpenStreetMap + PostGIS-powered route visualisation engine for real-time train positioning, and more!

Features include:

  • Real-time departures & arrivals for every UK station.
  • Stop-by-stop service tracking with live delay updates.
  • Push Notification-based journey alerts and saved frequent routes.
  • Track a service banner and iOS Live Activities integration.
  • Dynamic route visualisation with estimated live train position.
  • Up to date station facilities and accessibility information, and first/last services.
  • Ad-free, privacy first, performance focused design.

Visit traintrack.live for more information and to download on the App and Play Stores.

Search for journeysView service progressTrack individual servicesSchedule Journey Alerts

Research

During my time at university amongst other things, I studied large-scale digital platforms, network dynamics, and emergent behaviour in socio-technical systems. My work combines computational modelling, spatial analysis, and AI experimentation.

Crisis Mapping on OpenStreetMap (MEng Dissertation)

Investigating Crowd-Worker Mapping Behaviour on OpenStreetMap During Times of Crisis
Fabian Bindley — UCL MEng Dissertation, 2025

I conducted a large-scale quantitative analysis of 51M+ OpenStreetMap edits across 16 disasters to study how volunteer mapping behaviour evolves throughout crisis lifecycles. My results showed a sharp surge in post-disaster activity, primarily the creation of new elements, followed by longer-term enrichment and maintenance, with mapping intensity shaped by pre-disaster completeness and disaster type.

Explore the findings through my interactive visualisation platform.

Post-disaster temporal surge in OSM edits

Percentage differences in mapping change counts from pre to post-disaster. Red indicates increase; green indicates decrease.

Changes in types of OSM elements mapped pre vs post-disaster

Variation of OSM element types created and edited across disaster phases. Some element types like hospitals show clear surges in the immediate and post-disaster periods.

Political Bias in LLMs

Revealing Political Bias in LLMs through Structured Multi-Agent Debate
Aishwarya Bandaru, Fabian Bindley, Trevor Bluth, Nandini Chavda, Baixu Chen, Ethan Law — arXiv:2506.11825, April 2025

We developed a structured multi-agent debate framework to examine political bias and interaction dynamics across a variety of LLMs by employing agents with personas and LLM-as-a-Judge. Contrary to prior work, we show that LLM agents can form echo chambers — reinforcing and intensifying shared beliefs over time — particularly when demographic cues such as gender are introduced.

OpenStreetMap post-disaster activity surge

Two Female Democrat and one Female Neutral agent debating illegal immigration: all agents informed of each other's gender. We observed the strongest echo chamber in this configuration; all agents intensified away from neutrality.

Airbnb & Platform Dynamics

Examining the Landscape of the Sharing Economy through Airbnb
Fabian Bindley - UCL, January 2024
Modelling and Analysing the Impact of COVID-19 on Airbnb
Hardik Agrawal, Fabian Bindley, Baixu Chen, Stone Chen, Zhuofei Wu - UCL, March 2024

We analysed large-scale Airbnb data and applied Prophet forecasting, preferential attachment modelling, Gini-based inequality metrics, and sentiment analysis to quantify how the platform adjusted during and post COVID-19. Our results showed a structural move toward private accommodation and measurable changes in spatial concentration and guest behaviour.

OpenStreetMap post-disaster activity surge

Graphs of the number of monthly reviews (solid lines) in 6 example cities for entire rental and shared-use properties, including prophet modelling (dashed lines). A clear preference towards private accomodation is evident.