Machine Learning Engineer

About the role

Easybrain is seeking a Machine Learning Engineer to join its Business Intelligence team. You will partner with Data Scientists to design, build, and operate real‑time ML services that power LTV prediction, user acquisition, ads monetisation, and game personalization for a portfolio of games with billions of installs.

Key responsibilities

• Design and implement real‑time ML services for ads floor pricing, ad load, and in‑game personalization such as difficulty and content.
• Build and optimise data pipelines and performant queries over large‑scale behavioural data.
• Take models from research to production, defining interfaces, CI/CD, monitoring and model quality tracking.

Required profile

• Proven experience building production services in Python with performance optimisation.
• Strong SQL skills and hands‑on experience handling large data volumes.
• Background in data engineering and MLOps, including pipelines, CI/CD and monitoring.
• Ability to work on equal terms with Data Scientists, understanding ML concepts and A/B testing.
• Business‑oriented mindset, able to gather requirements and own technical decisions.
• B2+ level English; fluent Russian is required.

Required skills

• Python
• ClickHouse
• PostgreSQL
• Airflow
• MLflow
• Docker
• PyTorch
• LightGBM
• SQL

What we offer

• Full relocation support to any of our office locations.
• High‑end market salary with performance bonuses.
• All necessary equipment and regular company events.
• Social benefits including private medical cover and sports reimbursement.
• Paid vacations, sick days, and online language classes (English, Greek, Polish).
• Reimbursement for education and professional development.