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Joanna Kiesiak

Data Engineer | DataOps Engineer @ ENGIE Belgium
Brussels, Belgium

Data Engineer with 4 years of experience in designing and deploying secure, scalable, and production-grade data pipelines—across batch and streaming workflows—leveraging AWS, PySpark, and containerized solutions. Skilled in Medallion architecture, pipeline refactoring, and building data platforms from scratch to support data warehousing, governance, and advanced analytics use cases.

Top roles

Data Analyst2 - 5 years

ETL Datawarehouse

ETL / Datawarehouse
DataStage

Miscellaneous

AWK AND SHELL COMMANDS

Back-end

Python

Cloud

Docker
Language
Native Polish
Polish
Native
English
Fluent
German
Good
French
Average
Work experience
Since 2021
Data Engineer | DataOps Engineer @ ENGIE Belgium
01 June 2024 -

Refactored and deployed a production-grade data pipeline addressing key business requirements, improved automation and documentation, and managed a developer.

Data Engineer @ Big Industries (part of De Cronos Groep)
01 May 2022 -

Designed and delivered internal workshops on modern data architectures and led two data engineering interns, focusing on hands-on coaching and technical knowledge sharing.

AWS Data & Platform engineer @ MiDiagnostics
01 April 2023 - 31 March 2024

Collaborated on designing and implementing a batch data engineering platform and enhanced Python-based software library for improved functionality.

Data Engineer @ DSM
01 September 2022 - 31 March 2023

Designed a reliable data pipeline for SAP BW to AWS, ensuring compliance with best practices and optimizing AWS IoT Greengrass workflows.

Data Engineer @ Devoteam G Cloud
01 September 2021 - 30 April 2022

Established data ingestion workflows in BigQuery and maintained ETL processes ensuring reliable deployment through CI/CD.

Education experience
Since 2019
Computer Science @ Warsaw University of Technology & KU Leuven
01 January 2021 - 31 December 2023

Master in Computer Science, currently pending graduation.

Biomedical engineering @ Warsaw University of Technology
01 September 2019 - 31 December 2019

Bachelor of engineering in Biomedical Engineering.

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