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Senior / Principal Machine Learning Engineer

Warsaw, Masovian Voivodeship, pl💼 Full-time🗓 2026-07-09 → 2026-08-01

Core

Design, develop, and optimize scalable Machine Learning models for advertising intelligence and forecasting systems to improve accuracy and monetization strategies.

Role type

Senior / Principal Machine Learning Engineer (AdTech)

Builds

High-load cloud-native solutions processing billions of daily requests and terabytes of data for video advertising platforms

Domain

AdTech, online advertising, media platforms, video delivery

Deliverable

production ML models

Required skills

Machine Learning algorithms implementation, Python, Apache Spark, distributed data processing, distributed messaging systems (Kafka), AWS cloud services, large-scale distributed systems design, software engineering principles

Preferred skills

Golang, forecasting systems, recommendation engines, ML model optimization for large-scale production

Technologies

Python, Apache Spark, Kafka, AWS

Responsibilities

Design and optimize scalable ML models for advertising intelligence and forecasting; Analyze large-scale historical and real-time datasets; Build and maintain distributed data processing pipelines; Develop production-ready ML solutions; Research and implement ML algorithms for high-load environments; Monitor and optimize ML model quality; Mentor engineers and support technical growth

Seniority

Senior / Principal, hands-on IC with mentorship responsibilities

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