Maciej Palczyński
Software Engineer at Arista Networks
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolMaciej Palczyński is a software engineer based in Warsaw with 10 years' experience, specializing in backend development with Go and a strong emphasis on data processing systems. He has contributed to high-profile open-source work on Apache Beam—improving Java SDK integrations, BigQuery/Avro support, and adding operational counters—demonstrating comfort with large-scale streaming and batch pipelines. After roles at CodiLime he now develops infrastructure at Arista Networks, bringing practical expertise from both product-focused engineering and data engineering tasks. His academic background blends computer technologies and acoustics, a combination that hints at a methodical, signal-oriented approach to system design. Colleagues would note his attention to dependency and integration issues, and a knack for turning messy data-processing edge cases into reliable code.
10 years of coding experience
3 years of employment as a software developer
Magister (Mgr), Acoustics, Magister (Mgr), Acoustics at Uniwersytet im. Adama Mickiewicza w Poznaniu
Github Skills (24)
bigquery10
beam10
java10
gcp10
google-cloud-storage10
javas10
beamng10
apache-beam10
avro9
data-pipelines9
big-data9
data-pipeline9
streaming8
jms8
testing8
Programming languages (4)
Github contributions (5)
apache/beam
Mar 2024 - Nov 2024
Apache Beam is a unified programming model for Batch and Streaming data processing.
Role in this project:
Back-end Developer & Data Engineer
Back-end Developer & Data EngineerContributions:24 reviews, 11 PRs, 59 comments in 8 months
Contributions summary:Maciej primarily focused on improving the Apache Beam project's Java SDK, addressing dependencies, and resolving bugs related to data processing and BigQuery integration. Their contributions included updating Confluent dependencies, making code changes to support Avro schemas, and fixing errors in BigQueryUtils for retrieving Avro fields. They also added features related to JmsIO, particularly support for ConnectionFactory ProviderFn, and implemented counters for bytes read/written per GCS bucket.
golangpythonstreaming-databeambatch
tilgalas/beam
Mar 2024 - Nov 2024
Apache Beam is a unified programming model for Batch and Streaming data processing.
Contributions:34 pushes, 16 branches in 8 months
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