HAPPENING
AI

Senior Machine Learning Engineer Applied ML Research

HAPPENING · London, ENG, GB

Actively hiring Posted about 1 month ago

Role overview

As a Senior Machine Learning Engineer in our Applied ML & Research team, you'll drive the development of cutting-edge machine learning solutions that power critical features across our online gaming platforms. Your work will directly impact platform security, user experience, and large-scale data-driven decision-making for hundreds of thousands of users daily.

You'll lead by example, contribute high-quality code, and help shape the ML roadmap in the organization through cross-functional collaboration.

What you'll work on

  • Partner with product and engineering to identify and execute machine learning use cases that deliver measurable impact
  • Design, build, and iterate on machine learning solutions (e.g., classifiers, regressors, ranking/retrieval, and rule-based components)
  • Contribute across the ML lifecycle: data exploration, feature engineering, training, evaluation, deployment, and monitoring
  • Implement reliable training/inference pipelines and help improve reproducibility, testing, and observability
  • Communicate model behavior, trade-offs, and results clearly to both technical and non-technical stakeholders
  • Contribute to team standards: code quality, documentation, experimentation hygiene, and responsible ML practices

What we're looking for

  • Familiarity with ML tooling such as MLflow, ZenML, or Metaflow.
  • Hands-on experience with AWS services (e.g., EC2, EKS, CloudFormation, Cognito).
  • Exposure to streaming data platforms like Kafka.
  • Contributions to open-source ML projects.

About us

We are a global technology company dedicated to building the future of entertainment and fan-centric experiences.

With commercial markets in Brazil, Belgium, Poland, Romania, and Serbia, our company has evolved from a leading sports betting and gaming operator into a diversified product and tech organization, gathering more than 5,000 dedicated people across our teams.

Tags & focus areas

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Machine Learning Ai