Kosma Grochowski

Professional Experience

Senior Data Engineer at GetInData (2024 — ongoing)

Data Engineer at GetInData (2019 — 2024)

• I was a part of a team that built a custom open source Data Platform from scratch in on-premise environment based on Kubernetes
• I customized Docker images and configured helm charts for deployments of Airflow, JupyterHub, Gitlab runners, and many others
• I was in charge of writing, maintaining and migrating 100+ ETL processes using Spark and Airflow
• I created the scripts which automated the maintenance (retention, monitoring, authorization policies) of the data lake, as well as the CICD pipelines
• Used technologies: Python, SQL, Git, Scala, SBT, Kubernetes, Docker, Spark, Hive, HDFS, Airflow, Gitlab-CI, Prometheus, JupyterHub, Trino, Superset, Ranger, Kedro

.NET Sharepoint Developer at Seven Dots (2018 — 2019)

C/C++ Intern at Samsung Electronics (2016 — 2018)

Certifications

Certified Kubernetes Application Developer

Education

Master’s Degree at Warsaw University of Technology, Faculty of Mathematics and Information Science (2015 — 2021)

• Master education finished with MSc title in Data Science with a 4.71 score
• Bachelor education finished with BSc title in Computer Science with a 4.57 score

Finalist of LXVI Polish Mathematical Olympiad

External links

2024-04-10 — Kubernetes Takes the Wheel

2023-07-07 — Semi-supervised learning on real-time data streams

2022-09-05 — Feature store - managing multiple data sources with Feast

2022-03-23 — Dynamic SQL processing with Apache Flink

2020-09-29 — My experience with Apache Flink for Complex Event Processing

About me

Hello, world! I'm a developer with experience in data solutions. My goal in the workplace is to solve problems using the simplest method possible. In my free time, I like to play chess.