Oskar Firlej
Data Analyst
Poland
Summary
👤
Senior🎓
Top SchoolOskar Firlej is a data-focused engineer with nine years of experience building ETL and analytics solutions across cloud-native environments. He has practical expertise in Google Cloud (BigQuery, Dataflow, Pub/Sub, Dataproc), Apache Beam, Airflow and PySpark, having implemented both batch and real-time pipelines that emphasize cost and performance optimizations. Transitioning from PHP backend work early in his career to data science and engineering roles, he combines software craftsmanship with strong data profiling and quality practices. Currently a Data Analyst at StableLab, he previously drove streaming architectures and large-scale transformations at GFT and Snowdog. Colleagues rely on him for pragmatic pipeline design, Dockerized deployment, and translating business intelligence needs into actionable data products. Based in Poland, he pairs hands-on coding with a keen sense for query and table design that keeps analytics efficient at scale.
9 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering Computer Science, Bachelor of Engineering Computer Science at Poznan University of Technology
English, Polish
Github Skills (54)
crypto10
python10
trading10
beam10
bitcoin10
java10
cryptocurrency10
exchange10
api10
sql10
ethereum10
golang10
batch10
streaming10
apache9
Programming languages (3)
Github contributions (5)
Firlej/binance-trading-bot
Dec 2022 - Mar 2023
Contributions:42 commits, 47 pushes, 1 branch in 2 months
Firlej/WoodPuzzle
Sep 2017 - Dec 2021
Contributions:40 pushes, 2 branches in 4 years 3 months
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