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September 5, 2026

Member of Technical Staff, Machine Learning

Mid • Remote

18,000 - 25,000 PLN/yr

Warsaw, Poland

Responsibilities

  • Build and improve machine learning components across data preparation, training, evaluation, and inference.
  • Fine-tune and adapt models as part of larger production systems.
  • Implement evaluation and testing frameworks to understand model behaviour and performance.
  • Build and maintain pipelines for real-world and synthetic training data.
  • Investigate model failures, performance issues, and production incidents.
  • Ship improvements iteratively and use real user feedback to guide further development.
  • Work closely with senior machine learning engineers, product teams, and other technical stakeholders.
  • Contribute to systems operating under production constraints, including latency, cost, reliability, scalability, and safety.
  • Improve the quality and maintainability of ML systems through testing, monitoring, and continuous iteration.

Requirements

  • Strong foundations in machine learning and modern neural network architectures.
  • Hands-on experience training, fine-tuning, evaluating, or deploying machine learning models.
  • Strong Python programming skills; experience with PyTorch and/or JAX.
  • Familiarity with production machine learning systems running on GPUs.
  • Ability to write clean, reliable, and production-quality code.
  • Understanding of the machine learning lifecycle, including data preparation, training, evaluation, inference, and deployment.
  • Ability to learn new tools and technologies quickly.
  • Ability to work through ambiguous technical problems with guidance.
  • Willingness to take increasing ownership as experience and confidence grow.

What They Offer

  • Cash and equity compensation.
  • Remote-first setup with flexible hours as part of a distributed, global team.
  • Generous paid time off.
  • Company laptop provided.
  • A quick hiring process: 3, occasionally 4, interviews, with fast decisions afterwards.

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