Jaroslaw Grabowski
Software Engineer at DataStax
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolJaroslaw Grabowski is a software engineer with 10 years of experience specializing in backend and big data systems, currently building distributed database integrations at DataStax from Warsaw. He has deep Hadoop and Java roots from roles at Grupa Allegro and GetInData and focuses on improving stability and performance in production-grade connectors. His open-source work on the widely used apache/cassandra-spark-connector highlights expertise in Cassandra–Spark integration, async query optimization, and handling complex tuple/Schema issues in Scala. Known for pragmatic problem-solving, he blends low-level database engineering with practical distributed-systems engineering to make data pipelines more reliable and efficient.
10 years of coding experience
4 years of employment as a software developer
Warsaw University of Technology
Stackoverflow
11reputation
465reached
1answer
0questions
Github Skills (9)
apache-spark10
data-pipelines10
data-pipeline10
cassandra10
scala10
java9
distributed-systems9
javas9
sql8
Programming languages (3)
Github contributions (5)
apache/cassandra-spark-connector
Feb 2016 - Jan 2023
Apache Spark to Apache Cassandra connector
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:11 releases, 79 reviews, 357 commits in 6 years 11 months
Contributions summary:Jaroslaw primarily focused on improving the stability and efficiency of the Apache Cassandra Spark Connector. They addressed issues related to index name handling within the `Schema.scala` file. Other contributions involve supporting C* Tuple in DataFrames, writing Scala Tuples as C* Tuples, and optimizing the retrieval process for joining data with Cassandra tables using asynchronous queries.
apache-sparkcassandrascalaspark
DataStax-Examples/SparkBuildExamples
Jul 2016 - Jul 2020
Example projects for using Spark and Cassandra With DSE Analytics
Contributions:3 reviews, 111 commits, 63 PRs in 4 years 1 month
cassandraspark
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