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Machine Learning Engineer

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RTB House

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Location:
Poland

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Responsibility:

  • Developing and maintaining the ML training platform and the bidding infrastructure that evaluates ML models in the production environment
  • Identifying performance bottlenecks and optimizing critical, low-level parts of the system
  • Ensuring the reliability and scalability of implementations, and creating performance and correctness tests for new system components
  • Testing and benchmarking open-source Big Data and ML technologies to assess their suitability for the production environment

Requirements:

  • Expertise in designing and implementing complex IT systems
  • Ability to develop user-friendly, versatile tools
  • Proficiency in at least one programming language, such as Python, C++, Java, or Scala, along with expertise in Linux
  • Strong skills in evaluating and optimizing system performance, from initial design through to production troubleshooting
  • Deep understanding of algorithms and data structures
  • Initiative and creativity to improve existing solutions
  • Ability to work effectively both within and across teams

Nice to have:

  • Previous experience in the field of Machine Learning is not required, but would be an asset
  • Solid foundation in mathematics
  • Experience with GPU programming and Machine Learning frameworks such as Torch, PyTorch, or TensorFlow
  • Proven experience with distributed systems
  • Familiarity with Big Data technologies such as Hadoop, Kafka, Storm, Spark, or Flink
  • Hands-on experience with Google Cloud Platform (GCP) or similar cloud providers
What we offer:
  • A highly competitive salary
  • The opportunity to work with a team of enthusiasts experienced in Machine Learning, Big Data, and distributed systems, who are eager to share their knowledge and skills
  • Flexible working hours, with the possibility of remote work or working from our office in Warsaw
  • Access to the latest technologies, with the opportunity to apply them in a large-scale and fast-paced project
  • An opportunity to apply your expertise in optimizing algorithms that support hundreds of millions of internet users and billions of ad views per month within the RTB model
  • The ability to see the immediate impact of your work on the company's business outcomes
  • The possibility of publishing your results

Additional Information:

Job Posted:
December 27, 2025

Work Type:
Remote work
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