Data Scientist

Twenty First Group
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📍 London, England, United Kingdom

About this role

Data Scientist, Sports Betting

Role Overview

We're looking for a Data Scientist to join our Sports Betting vertical. You’ll develop predictive models, contributing to our growing portfolio of pre-match and in-play products and services for the sports betting industry.

What You’ll Do

  • Modelling & Analysis: Develop, train, and evaluate predictive models using machine learning and statistical techniques, with a focus on probabilistic and Bayesian approaches. Contribute to the modelling lifecycle from feature engineering and training through to validation and deployment.
  • Data Work: Query, clean, and explore datasets using Python and SQL to surface patterns and support model development.
  • AI-Assisted  Development: Leverage AI tools to accelerate and improve your day-to-day workflow.
  • Quality & Rigour: Apply good model development discipline through version control, testing and documentation.

What You’ll Bring

  • Passion for Sport: You follow sports and understand the context of the data and markets we build for. Comfortable with sport-driven modelling decisions.
  • Machine Learning & Statistics: Solid grounding in machine learning, supervised and unsupervised methods, and classical statistical techniques. Comfortable working with probabilistic models, uncertainty estimation and Bayesian inference.
  • Model Development: Understanding of the full model training pipeline, including data preparation, feature selection, model selection and model validation.
  • Experience: Hands-on experience building and evaluating models in a data science or quantitative context.
  • Python & SQL: Comfortable using python and SQL for data exploration, feature development and modelling workflows.
  • Communication: Able to present findings clearly to both technical and non-technical audiences.

Nice to Haves

  • Simulation: Experience with Monte Carlo methods or probabilistic simulation.
  • AI Integration: Comfortable using AI-assisted coding tools such as Claude Code or Cursor as part of your everyday workflow, and open to integrating them deeper into how you model and build.

What We Look For

  • Curiosity: You are naturally curious about the “Why”. You look at data and customer behaviour to inform your decisions. 
  • Collaborative & Open: You treat your work as a starting point for collaboration. You contribute to shared knowledge and code bases, and value engaging with your peers to build solutions.
  • Continuous Development: You are keen to develop knowledge and skills, keeping up to date with relevant developments and applying new learning where appropriate.

What We Offer

  • Hybrid working out of our London office (Farringdon) - most of our staff come into the office about twice a week
  • Salary based on our external benchmarking framework, plus eligibility for a bonus scheme
  • Private health insurance, occupational life cover, and income protection insurance
  • Personal days, including birthdays and health and wellness days
  • AI forward culture including Claude Code Premium subscription

Frequently Asked Questions

Is the salary disclosed for the Data Scientist position at Twenty First Group?
The salary for this Data Scientist role at Twenty First Group is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Data Scientist position at Twenty First Group located?
This Data Scientist role at Twenty First Group is based in London, England, United Kingdom. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
How do I apply for the Data Scientist position at Twenty First Group?
Click the "Apply Now" button on this page. You will be redirected to Twenty First Group's official application portal hosted on workable where you can submit your application directly.
When was the Data Scientist job at Twenty First Group posted?
This Data Scientist position at Twenty First Group was posted on Jul 21, 2026. Apply as soon as possible — early applications are often reviewed first.
Data Scientist
Twenty First Group
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