Dima Bulgakov
Mitarbeiter at Glas Nowak
Ruhr Region Germany
Summary
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RockstarDima Bulgakov is a pragmatic back-end engineer with nine years of experience based in the Ruhr Region, Germany, currently working as Mitarbeiter at Glas Nowak. He contributes to performance-focused open source projects—most notably optimizing Apache DataFusion by refactoring protobufs, removing deprecated features, and improving filter pushdown and Utf8 handling to reduce redundant data copying. Comfortable in German and Swedish contexts (de, swe), he blends production-minded efficiency improvements with careful code hygiene. Dima's work shows a preference for low-level optimizations that yield measurable runtime gains, making him valuable on teams aiming to squeeze more performance from SQL query engines and data-processing stacks.
9 years of coding experience
Github Skills (12)
fusion10
query-engine10
rust10
sql10
protobuffer9
protobuf9
arrow-js9
arrow-keys9
arrows9
data-structures8
data-structure8
algorithms7
Programming languages (5)
Github contributions (5)
apache/datafusion
Apr 2024 - Dec 2024
Apache DataFusion SQL Query Engine
Role in this project:
Back-end Developer
Back-end DeveloperContributions:24 reviews, 19 PRs, 49 comments in 7 months
Contributions summary:Dima primarily focused on optimizing and refactoring the Apache DataFusion SQL Query Engine's codebase. Their contributions included removing deprecated features, refactoring protobuf definitions, and improving code efficiency by eliminating redundant data copying. The user also added support for Utf8View in multiple functions and optimized filter pushdown operations, enhancing the query engine's performance and functionality.
querypythonquery-enginedataframerust
PROTEINE-INSAIDERS/enki
Jul 2018 - Aug 2021
Sumerian god of water, knowledge, mischief, crafts, and creation.
Contributions:17 PRs, 5 pushes, 6 comments in 3 years 1 month
sumeriantwineoptimizationsgameknowledge
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