Dmitriy Fingerman
Apache Hive PMC Member at The Apache Software Foundation
Canada
Summary
🤩
Rockstar🎓
Top SchoolDmitriy Fingerman is a seasoned software engineer with 11+ years building data-intensive, distributed systems and backend platforms, currently a Staff Software Engineer at Cloudera and an Apache Hive PMC member. He combines deep hands-on expertise in Big Data, cloud storage, CI/CD and microservices with academic rigor from a Master’s in Applied Computer Science. Dmitriy has driven performance and correctness improvements in Apache Hive—optimizing transactional fetches, ORC handling, and cloud file-size statistics—demonstrating rare fluency in both query engines and storage formats. Comfortable leading high-responsibility efforts, he has held technical lead roles and scaled solutions across enterprise environments like IQVIA and OneSpan. Colleagues rely on him for pragmatic, performance-first engineering that turns complex data challenges into reliable production systems.
11 years of coding experience
20 years of employment as a software developer
Master’s Degree Applied Computer Science, Master’s Degree Applied Computer Science at Concordia UniversityBachelor's Degree Computer Science and Mathematics, Bachelor's Degree Computer Science and Mathematics at Ben-Gurion University of the Negev
English, Russian, Hebrew, French
Stackoverflow
11reputation
960reached
0answers
1question
Github Skills (11)
javas10
big-data10
query-optimization10
apache-hive10
orc10
java10
hadoop9
database9
databases9
sql8
apache-spark6
Programming languages (3)
Github contributions (5)
apache/hive
Sep 2022 - Jan 2023
Apache Hive
Role in this project:
Back-end Developer
Back-end DeveloperContributions:501 reviews, 7 commits, 59 PRs in 3 months
Contributions summary:Dmitriy primarily contributed to the Apache Hive codebase, with commits focused on improving the query engine and data processing functionalities. Their work involved enhancing the fetch operator to optimize data retrieval from transactional tables, specifically filtering delete_delta folders to scan only relevant transactions. They also optimized statistics collection for file sizes on cloud storage and enhanced the compaction process. The contributions involved deep understanding of ORC file format, ACID transactions, and query optimization.
flinksqlapachebig-dataspark
difin/hive
Aug 2022 - Apr 2025
Apache Hive
Contributions:471 pushes, 57 branches in 2 years 7 months
flinkapachebig-datasparkdatabase
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