Senior PySpark Data Scientist — ML Ops & Monitoring

INFOLET SP. Z O.O.; Kraków; On-site; PLN 240,000 - 320,000; Full time

Job summary

A leading data solutions company is looking for an experienced Data Scientist in Kraków, Poland to develop and improve large-scale data and machine learning ecosystems. You will work on building Spark-based data pipelines, enhancing data quality processes, and implementing monitoring workflows for ML models. Candidates must have at least 5 years of experience, proficiency in PySpark and Python, and be fluent in Polish. This role offers a comprehensive benefits package, including medical care and a relocation package.

Benefits

Relocation package

Extended medical care

Multisport Benefit card

Life insurance

Qualifications

• 5+ years of experience required.
• Strong commercial experience with PySpark essential.
• Excellent knowledge of Python necessary.
• Solid SQL knowledge is a must.
• Experience with ML frameworks like scikit-learn is expected.
• Fluent Polish and good English language skills are required.

Responsibilities

• Develop Spark jobs for data ingestion and feature engineering.
• Build logic for model evaluation and automated deployment decisions.
• Enhance data quality metrics and monitoring coverage.
• Troubleshoot and fix code issues, including edge cases.
• Optimize performance and cost across algorithms and data structures.

Skills

PySpark

Python

Data analysis skills

GitHub

SQL

MLOps practices

Fluent Polish

Good English

Tools

Kubeflow

MLflow

scikit-learn

Pandas

Grafana

AWS services

Job description

A leading data solutions company is looking for an experienced Data Scientist in Kraków, Poland to develop and improve large-scale data and machine learning ecosystems. You will work on building Spark-based data pipelines, enhancing data quality processes, and implementing monitoring workflows for ML models. Candidates must have at least 5 years of experience, proficiency in PySpark and Python, and be fluent in Polish. This role offers a comprehensive benefits package, including medical care and a relocation package.