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Senior Data / ML Engineer
  • Warsaw
Senior Data / ML Engineer
Warszawa, Warsaw, Masovian Voivodeship, Polska
B2B.NET S.A.
20. 12. 2025
Informacje o stanowisku

technologies-expected :


  • Python
  • Apache Spark
  • AWS
  • SQL
  • Git

technologies-optional :


  • TensorFlow
  • PyTorch

about-project :


  • We are looking for an experienced Senior Data/ML Engineer to drive the development, deployment, and optimization of large-scale Machine Learning and Big Data solutions. You will work end-to-end across the ML lifecycle, build distributed data pipelines, and shape our MLOps best practices within a modern AWS environment.
  • Hybrid: Trójmiasto / Łódź / Warsaw | Python - Spark - AWS - MLOps | Full-time

responsibilities :


  • Own the full lifecycle of ML models – from development and deployment to monitoring and continuous improvements.
  • Implement MLOps principles, including CI/CD, automation, testing, and observability for ML workloads.
  • Build and maintain data ingestion, processing, and transformation pipelines (batch & streaming) using Python and Apache Spark.
  • Design and optimize distributed, highly parallel Big Data pipelines processing massive datasets in near real-time.
  • Use Spark to enrich and prepare corporate data for search, analytics, and advanced ML use cases.
  • Closely collaborate with Data Scientists, DevOps Engineers, and IT teams to deliver production-grade ML solutions.
  • Work with analysts and business stakeholders to develop and refine analytical models.
  • Enhance and extend the organization’s MLOps frameworks and libraries, ensuring scalability across multiple ML use cases.
  • Explore and evaluate cloud-native AI/ML solutions on AWS.

requirements-expected :


  • 5+ years of hands-on experience with Python and Apache Spark.
  • Strong experience with AWS services, especially S3, Glue, SageMaker, Lambda, Step Functions / Airflow / MWAA.
  • Practical knowledge of AWS automation using AWS CLI, boto3, IAM roles.
  • Solid understanding of algorithms, data structures, statistics, and linear algebra.
  • Experience with training and deploying ML models using TensorFlow or PyTorch.
  • Understanding of distributed systems and Big Data technologies (Hadoop, Hive, or equivalents).
  • Proficiency in SQL (Spark SQL / Hive SQL) and experience building production-grade data pipelines.
  • Strong Git skills (Bitbucket, branching workflows, code review).
  • Experience working in Agile/SAFe environments.

benefits :


  • sharing the costs of sports activities
  • private medical care

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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