Alexander Filipchik is a Member of Technical Staff and Head of Infrastructure with 11 years of experience building and operating large-scale, multi-regional systems from PlayStation-era petabyte operational databases to modern data infrastructure at ATOMS. He specializes in backend and data ingestion reliability, demonstrated by contributions to Apache Hudi—improving DeltaStreamer schema handling and cloud filesystem interactions for GCS. His background spans real-time operational databases, Cassandra operations, ML/data pipelines, and observability, giving him a pragmatic systems-first approach to platform design. Based in the Los Angeles area, he blends hands-on engineering with infrastructure leadership to shepherd systems from prototype to production at scale. Not obvious from titles alone, he has deep operational experience debugging and evolving storage-heavy architectures under high-throughput conditions. He communicates through engineering blogs and open-source work, favoring practical stability improvements that unlock reliable data workflows.
11 years of coding experience
14 years of employment as a software developer
Master, Computer Systems and Networks, Master, Computer Systems and Networks at BSUIR
Upserts, Deletes And Incremental Processing on Big Data.
Role in this project:
Back-end Developer
Contributions:1 review, 11 commits, 13 PRs in 1 year
Contributions summary:Alexander's contributions primarily focus on enhancing the Apache Hudi data lake framework, specifically related to the DeltaStreamer utility. They worked on improving schema handling, including inferring target schemas from transformations and handling schema post-processing. The user also addressed issues related to file system interactions, particularly for GCS, and improved parsing of parameters within the DeltaStreamer. These changes reflect a focus on improving the stability and functionality of the data ingestion and transformation components.
Production repository for the all-new Advantage360 Professional using ZMK engine
Contributions:7 pushes, 2 branches in 1 year 6 months
professionalproductionzmk
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Alexander Filipchik - Member Of Technical Staff at ATOMS