Data Scientist - Principal

Product Madness
London

Job Description

Are you ready to join a world-class team and make a significant impact on the gaming industry? At Aristocrat, we aim to bring happiness to life through the power of play. We seek a Principal Data Scientist to help us reach our ambitious goals. You will have a vital role in enhancing gameplay, boosting player engagement, and improving business outcomes with your advanced data expertise. This opportunity allows you to work on innovative projects, collaborate with diverse teams, and guide critical initiatives that will develop the future of our leading games.

\n

What You'll Do\n

\n
    \n
  • Lead high-impact data science initiatives end-to-end, including problem framing, methodology selection, experiment development, implementation partnership, and impact measurement.
  • \n
  • Build and deliver machine learning and reinforcement learning solutions to improve player engagement, retention, monetization, and operational outcomes.
  • \n
  • Lead the modeling framework for complex systems, guaranteeing comprehensive evaluation and monitoring of causal inference, uplift modeling, sequential decisioning, bandits/reinforcement learning, and forecasting.
  • \n
  • Partner with game teams to define success metrics, guardrails, and decision frameworks, translating analytical results into actionable product and operational actions.
  • \n
  • Define and uphold engineering standards and guidelines for model development, including validation, uncertainty, reproducibility, and bias/quality checks.
  • \n
  • Drive scalable experimentation with A/B and Multi-armed bandit testing frameworks, power analysis, variance reduction, and online-offline alignment.
  • \n
  • Work together with Data Engineering, MLOps, and Game Tech teams to guarantee dependable data foundations, feature accessibility, and model deployment pathways.
  • \n
  • Build internal data products to improve the speed and quality of decision-making, such as AB-test calculators, decision tools, and automated insights.
  • \n
  • Provide technical leadership through building and code reviews, mentoring, and coaching, improving the standard of data science craft across the organization.
  • \n
  • Serve as a reliable collaborator throughout the organization, promoting data-informed decision-making and enabling business units to embrace data products.
  • \n
  • Translate complex analytical insights into actionable recommendations, presenting them to senior leadership to inform critical business decisions and encourage collaborators.
  • \n
\n

What We Are Seeking\n

\n
    \n
  • Education: PhD or MSc in Data Science, Computer Science, Statistics, Physics, Mathematics, or a related quantitative field, or equivalent experience in practice.
  • \n
  • Experience: 5+ years of professional data science experience. You have delivered at least 3 data or ML products from problem definition to production deployment and monitoring.
  • \n
  • Demonstrated proficiency in clustering, predictive modeling, reinforcement learning, and Bayesian statistics.
  • \n
  • Hands-on experience in software engineering, MLOps, and deploying machine learning models at scale.
  • \n
  • Proficiency in SQL, Python, and familiarity with big data technologies (e.g., Kafka, Spark) and/or cloud platforms (e.g., GCP, AWS, or Azure).
  • \n
  • Industry knowledge: Experience in gaming or digital entertainment is a strong plus.
  • \n
\n

\n

Why Product Madness ?

\n

\n

As part of the Aristocrat family, we share their mission of bringing joy to life through the power of play, with a world-class team who creates top-grossing, leading titles in the social casino genre, including Heart of Vegas, Lightning Link, Cashman Casino. With 800 team members across the globe, Product Madness is headquartered in London, with offices in Barcelona, Gdańsk, Lviv, Montreal and a remote team spanning the USA, making us a truly global powerhouse.

\n

\n

We live by our People First principle. Regardless of where, when, or how they work, our team members have opportunities to elevate their careers, and grow alongside us. We take pride in fostering an inclusive culture, where our people are encouraged to be their very best, every day. But don’t just take our word for it. In 2024, we made the Global Inspiring Workplace Awards list, and won a bronze award at the Stevies for Great Employers in the ‘Employer of the Year - Media and Entertainment’ category.

\n

\n

So, what’s stopping you?

\n

\n

Travel Expectations

None\n

\n

Additional Information

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

\n

At this time, we are unable to sponsor work visas for this position. Candidates must be authorized to work in the job posting location for this position on a full-time basis without the need for current or future visa sponsorship.

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
Posted 2026-08-04

Recommended Jobs

Interim Financial Accountant

London

Interim Financial Accountant (6-Month Contract) Remote (with travel) | C£400 per day | 6-Month Contract Are you an experienced Financial Accountant looking for your next interim assignment? We're…

View Details
Posted 2026-07-21

Business Studies Teacher - Outstanding Mixed School -...

Marchant Recruitment
London

Business Studies Teacher - Outstanding Mixed School - Hackney (September Start) Are you a hard-working, motivated and driven teacher who wants good support and career progression? • Business Studi…

View Details
Posted 2026-04-18

Fixed Term Contract Part-time Nanny, Job ID J21044

Little Ones UK Ltd
Chelsea, Greater London

A lovely family based in Chelsea is looking for a part-time Nanny on a fixed term contract. The ideal candidate will be someone proactive, organised, energetic and engaging. They will be caring for a…

View Details
Posted 2026-06-03

Waiting Staff

KIBOU Restaurants
London

Part-time 10 hours per week KIBOU is an independent Japanese restaurant and bar with restaurants in Battersea, Cheltenham, Bristol, Solihull, Oxford and Cambridge. We offer an extensive menu sh…

View Details
Posted 2026-07-21

History ECT - Excellent Secondary School - Enfield

Marchant Recruitment
Enfield, Greater London

History ECT required January 2026 Good mixed school based in Enfield History ECT to join a well-supported and academically strong Humanities team Our Client is looking for a History ECT for a…

View Details
Posted 2025-11-15

Theatre Technician | Haringey (Independent Secondary)

Marchant Recruitment
London

We are working with a prestigious independent school in Haringey looking for a motivated Theatre Technician to join their ambitious performing arts faculty. This school views the arts as a cornerston…

View Details
Posted 2026-02-04

Engineering & Construction Underwriter (Hybrid Work, 80 - 100% working degree possible)

Swiss Re
London

Location: London, GB Interested in helping insure the UK's most complex construction and infrastructure projects? Join Swiss Re Corporate Solutions and play a key role in underwriting major UK con…

View Details
Posted 2026-07-27

Staff Product Engineer

fleek
London

Can you help us fix the world's most broken supply chain? The fashion industry produces over 100 billion garments a year. 60% end up in landfill, not because people don't want these clothes, but be…

View Details
Posted 2026-07-06

FAC Reinsurance Pricing Actuary

Gallagher Re
London

Job Description Introduction \n \n \n \n At Gallagher Re, we bring clarity to complexity by helping clients around the world make confident, data-driven decisions in a rapidly evolving risk la…

View Details
Posted 2026-08-03