Senior ML Engineer - Offline Team

The role

A Senior ML Engineer will build and maintain ML training infrastructure for ad-targeting models. You will lead projects from ideation to production, optimize pipelines, and enable Data Scientists to iterate faster.

What you will do

• Take end-to-end ownership of projects from ideation to production release
• Build and maintain quality data and ML pipelines
• Optimize training pipelines for performance, memory efficiency, and cost
• Provide reusable pipeline components to enable Data Scientists
• Integrate new data sources and scale feature windows
• Contribute to deep learning development including GPU workload orchestration and custom PyTorch training loops
• Maintain reproducibility and consistency across the ML lifecycle
• Collaborate with infrastructure teams on scalability and resource monitoring
• Participate in weekly rotation to triage and resolve alerts from Airflow, dbt, and related systems
• Collaborate daily with back-end developers, data scientists, infrastructure engineers, and product managers

Required qualifications

• 5+ years minimum of experience as an ML Engineer or a similar role
• End-to-End ML Ownership: Problem framing, baselines, experimentation, deployment, and iteration
• Extensive Python knowledge for ML pipeline code
• Comfortable implementing training mechanics
• Practical experience training and evaluating models with scikit-learn, LightGBM, PyTorch
• Experience optimizing memory usage during data preprocessing and model training
• Experience with hyperparameter tuning, experiment tracking, and reproducible training
• Experience with Amazon Web Services
• Familiarity with scalability, reliability, and security topics
• Understanding of the challenges involved in running ML models in production
• Excellent communication skills in English

Nice to have

• Experience with model serving infrastructure (real-time or batch inference, latency/throughput optimization)

Benefits

• Excellent benefits that will depend on the country you're based in

About the company

Founded in 2013, Voodoo is a tech company that creates mobile games and apps. It is the #3 mobile publisher worldwide in terms of downloads after Google and Meta.