Data Scientist

Company: Tussell Limited
Apply for the Data Scientist
Location: London
Job Description:

We’re looking for a graduate data scientist to help build and exploit a digital twin of every block of flats in the UK — a single, structured, continuously updated model of the buildings we insure and the ones we might. You’ll do two things. First, help build the data foundation: bringing together public and commercial datasets and resolving them to individual buildings. Second — and increasingly over time — use that data to understand the true risk of each building and turn it into pricing, risk selection and insight we give back to clients. Initially, this is a three month role with the potential to become full time. This is a rare chance to own foundational work from day one at an early-stage company, with real scope to shape both the data and the models built on it.

What you’ll do

  • Help build and maintain the digital twin — ingesting, cleaning, matching and enriching building-level data from multiple sources.
  • Work with UK datasets including Ordnance Survey (e.g. AddressBase, building footprints), Land Registry, EPC records, planning data, flood and other peril data, and commercial sources.
  • Solve entity resolution — reliably matching records across datasets to the right physical building and address.
  • Analyse and model risk at building level — identifying the features that actually drive claims and turning them into signals for pricing and underwriting.
  • Build, test and validate models, and clearly communicate what they do and don’t tell us.
  • Work with large databases and keep them accurate and performant as they grow.
  • Help define what “good” looks like — data quality, coverage, model performance — and build the checks to enforce it.

Why join

  • Real ownership — you’ll shape a core company asset and the models built on it, not maintain someone else’s legacy system.
  • Equity — share in what we’re building.
  • Direct impact — your work shapes how we price risk and what we tell clients.
  • Learn fast — work directly with the founder and a small, senior team.

Essential

  • A degree in a quantitative subject (e.g. data science, statistics, maths, physics, engineering, computer science, economics, geography/GIS) — or equivalent demonstrable skill.
  • Strong analytical and statistical reasoning, and sound judgement about data.
  • Programming ability, ideally Python; comfortable with SQL and large datasets.
  • Genuine interest in working with messy real-world data and making it reliable and useful.
  • Clear thinker who can break down ambiguous problems and take ownership.

Nice to have

  • Experience building statistical or machine-learning models on real data.
  • Hands‑on experience with Ordnance Survey data or other UK public datasets.
  • Geospatial / GIS experience (e.g. PostGIS, QGIS, working with coordinates and footprints).
  • Any exposure to property, insurance, actuarial work, or the built environment.

You don’t need to tick every box. If you’re a sharp graduate who loves data and wants to build something foundational, we want to hear from you.

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Posted: June 24th, 2026