Remote Senior Machine Learning Engineer (AdTech)

Description:

• Join Sigma Software as a Senior Machine Learning Engineer to build advanced predictive systems for the programmatic advertising ecosystem.
• Work on production-grade machine learning models, real-time optimization pipelines, and scalable infrastructure for a live ad exchange platform.
• Fully remote position with flexible collaboration across distributed teams.

Requirements:

• 6+ years of experience in Data Science and ML Engineering, with at least 2 years in each area.
• Strong production experience with machine learning systems that deliver measurable business impact.
• Expertise in gradient-boosted trees (XGBoost, LightGBM, CatBoost) and advanced knowledge in areas like delayed labels and off-policy evaluation.
• Proficient in Python and SQL, with hands-on experience in ML orchestration and CI/CD pipelines.
• Experience with Kubernetes and Docker in production environments.
• Upper-Intermediate or higher English level.

Benefits:

• Opportunity to work on complex ML challenges with measurable business impact.
• Contribute to a modern, high-load AdTech platform with a dedicated team.