Graduate Machine Learning Researcher

Longshot Systems Ltd · London, United Kingdom (Hybrid) · Full-time · Posted 2026-10-14

Workplace: hybrid

Description

At Longshot Systems we're building advanced platforms for sports betting analytics and trading.

We're hiring Graduate Machine Learning Researchers for our quantitative modelling team. The primary goal of this team is to improve the predictive power of our models based on historical event data. The quality of our models is incredibly important to us and improvements to our models directly impact company success.

You will design, test, and implement new machine learning models in Python, continually improving our existing state-of-the-art solutions. Longshot is a small, focused company and so the role suits someone who wants to be involved in all aspects of the R&D process, from high-level design through to production implementation and who has a keenness to learn from experienced industry experts.

The ideal candidate will be highly creative and enjoy generating new, innovative ways to tackle problems and suggesting improvements to existing methodologies; you'll have a high level of autonomy to research whichever methods you feel would be best suited to the problem at hand. A strong mathematical understanding of the fundamentals of Machine Learning and core statistics is very important for this role. Knowledge of sports betting isn't required.

We are a hybrid working company, working Thursdays in our London (Farringdon) office and remotely the rest of the week. Our typical working hours are 10 am to 6 pm UK time, Monday to Friday, but we support flexible working and trust our team to manage their own schedules to meet their goals.

Our interview process is as follows:

Intro call (30 mins) - your background + interests
Technical interview (60 mins) - modelling discussion + scenario questions
Full assessment day (10:00–17:00) - solving a real modelling problem using near-production-level data

Requirements

PhD or research Masters in a quantitative, technical subject (e.g. Maths, Physics, Machine Learning) from a top university
Experience modelling tabular data in Python

Benefits

Participation in the uncapped company bonus scheme, typically 10-20% of salary depending on experience
10% matched pension contributions
Private healthcare insurance
Long term illness insurance
Gym membership
Choose your own hardware & setup for your development environment

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Apply at Longshot Systems Ltd

About the company

Longshot Systems builds high-throughput, low-latency trading software for sports betting markets. Its core platform ingests thousands of trading signals per second, runs them through a fast decision engine, and can automatically place bets or hedge positions with minimal delay. Compared with competitors, it aims for the same speed and scale as high-frequency trading shops but tailored to sports betting, focusing on the market’s data feeds, latency, and execution path. The goal is to provide a reliable, scalable system that lets clients react to market data in real time to capture opportunities and manage risk.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

London, United Kingdom

Founded

2016

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Simplify's Take

What believers are saying

Longshot launched alpha prediction markets on Base in August 2026.
June 2026 funding lifted total capital to $20 million.
UK sports-betting demand stays durable, supporting recurring client spend and integrations.

What critics are saying

Brand confusion with Longshot Space, a defense startup, dilutes employer credibility.
Prediction-market launches on Base face regulatory scrutiny from U.S. and U.K. regulators.
Sports-betting analytics is crowded; Oddschecker, Sportradar, and Kambi compress pricing quickly.

What makes Longshot Systems unique

Longshot Systems sells sports analytics software for betting operators, not generic SaaS.
Its trading tools target high-throughput, low-latency workflows in fast-moving betting markets.
The company spans software and prediction-market formats, broadening product surface area.

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Benefits

Health Insurance
Gym Membership
Hybrid Work Options
Flexible Work Hours
Performance Bonus

Longshot Systems

Graduate Machine Learning Researcher

About the job