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Senior Machine Learning Engineer

Warsaw, Masovian Voivodeship, Poland🌐 Remote💼 Full-time🗓 2026-06-03 → 2026-09-26

Core

Designing and implementing complex IT systems, specifically ML training platforms and bidding infrastructure for a Deep Learning-powered ad-buying engine.

Role type

Senior Machine Learning Engineer (Systems & Infrastructure)

Builds

ML training platform, bidding infrastructure, and optimized low-level system components for ad-tech products.

Domain

AdTech / Digital Marketing / Deep Learning

Deliverable

production ML models | infrastructure

Required skills

Python, C++, Java, or Scala; Linux; algorithm and data structure design; system performance optimization; distributed systems architecture; Big Data technologies (Hadoop, Kafka, Storm, Spark, Flink); GPU programming; cloud platform expertise (GCP).

Preferred skills

Machine Learning frameworks (Torch, PyTech, TensorFlow); mathematics foundation; experience with ML training and bidding systems.

Technologies

Python, C++, Java, Scala, Linux, Hadoop, Kafka, Storm, Spark, Flink, Torch, PyTorch, TensorFlow, Google Cloud Platform (GCP).

Responsibilities

Develop and maintain the ML training platform and bidding infrastructure; identify and optimize performance bottlenecks in critical system parts; ensure reliability and scalability of implementations; test and benchmark open-source Big Data and ML technologies for production suitability.

Seniority

Senior, hands-on IC

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