Ahmet Gedemenli
Software Engineer at Snowflake
Ankara, Ankara, Turkey
Summary
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Rockstar🎓
Top SchoolAhmet Gedemenli is a software engineer with nine years' experience focused on backend and database engineering, currently at Snowflake after recent roles at Xata.io and Microsoft. He has deep PostgreSQL extension expertise, contributing to the widely used Citus project—improving EXPLAIN ANALYZE output, adding EXPLAIN(ANALYZE, WAL) support, and building tests for WAL features in PostgreSQL 13. His background includes optimizing complex query planning, INSERT and foreign-key behaviors, and schema management, reflecting a strong command of database internals and performance debugging. Prior work spans high-traffic product engineering for Migros’ SanalMarket and enterprise-scale database features at Microsoft. A Boğaziçi University computer engineering graduate based in Ankara, he combines production experience with open-source impact on distributed PostgreSQL. Colleagues describe him as a pragmatic problem-solver who bridges deep systems knowledge with product-focused delivery.
9 years of coding experience
6 years of employment as a software developer
Bachelor's degree, Computer Engineering, Bachelor's degree, Computer Engineering at Boğaziçi University
Turkish, English
Stackoverflow
31reputation
144reached
3answers
0questions
Github Skills (10)
databases10
query-optimization10
citus10
postgresql10
distributed-database10
sql10
relational-databases10
sql-database10
database10
testing9
Programming languages (6)
Github contributions (5)
citusdata/citus
Sep 2020 - Jan 2023
Distributed PostgreSQL as an extension
Role in this project:
Back-end & Database Engineer
Back-end & Database EngineerContributions:286 reviews, 392 commits, 310 PRs in 2 years 4 months
Contributions summary:Ahmet primarily focused on enhancing the functionality of the Citus extension for PostgreSQL, a distributed database system. Their contributions centered on improving the `EXPLAIN ANALYZE` output, adding support for `EXPLAIN(ANALYZE, WAL)`, and creating tests for PostgreSQL 13 WAL features. They also worked on optimizing and debugging various database operations, including INSERT statements, foreign key handling, and schema management. The user demonstrated a solid understanding of database internals and query planning optimization.
distributedrelational-databasesqlcitusscale
afgedemenli/blogumuz
Feb 2017 - Feb 2020
Contributions:3 pushes, 2 branches in 2 years 11 months
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