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Data Engineer – Data Lake (f/m/x)
  • Rzeszów
Data Engineer – Data Lake (f/m/x)
Rzeszów, Rzeszów, Podkarpackie Voivodeship, Polska
Sii Sp. z o.o.
21. 3. 2026
Informacje o stanowisku

Data Engineer – Data Lake (f/m/x)

Miejsce pracy: Rzeszów

Technologies we use

Expected

  • Apache Spark
  • Python
  • ETL/ELT
  • AWS
  • Docker
  • Kubernetes

Optional

  • Kafka

About the project

You will join an international project within the healthcare and life sciences industry, focused on building and evolving a modern Data Lake platform supporting large-scale data processing and analytics. The solution enables data-driven decision-making in a highly regulated environment, with a strong emphasis on data quality, security, and compliance. The environment is cloud-based and leverages modern big data technologies and best engineering practices.

As a Data Engineer, you will be responsible for designing, developing, and maintaining data pipelines and Data Lake architecture. You will work closely with cross-functional teams, including data scientists and business stakeholders, to deliver reliable and efficient data solutions.

Your responsibilities

  • Designing and developing scalable data pipelines for batch and real-time data processing
  • Building and optimizing Data Lake architecture for analytical use cases
  • Integrating multiple data sources and ensuring seamless data flow across systems
  • Ensuring data quality, consistency, and governance (data lineage, access control)
  • Optimizing storage and processing performance using modern data formats and partitioning strategies
  • Monitoring, troubleshooting, and improving data pipeline performance
  • Collaborating with stakeholders to translate business needs into technical solutions
  • Following best practices in data engineering and continuously improving the platform

Our requirements

  • Strong experience in Data Engineering or Big Data-related roles
  • Proficiency in Python, Scala, or Java
  • Hands-on experience with tools such as Apache Spark, PySpark, or similar frameworks
  • Previous work with Data Lake technologies (e.g., AWS S3, Azure Data Lake, Databricks, BigQuery)
  • Knowledge of ETL/ELT processes and orchestration tools (e.g., Airflow, Data Factory)
  • Good understanding of SQL and data modeling
  • Experience with distributed systems and large-scale data processing
  • Familiarity with Docker and Kubernetes
  • Strong analytical and problem-solving skills
  • Fluent in Polish required
  • Residing in Poland required

Optional

  • Experience with streaming technologies (e.g., Kafka)
  • Knowledge of data governance tools
  • Familiarity with CI/CD processes in data projects

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

Recruitment stages

  • Send your CV
  • Talk to us about your expectations
  • Learn more about our projects and choose the best
  • Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

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