Metin Döşlü
Istanbul, Istanbul, Turkey
Summary
🤩
Rockstar🎓
Top SchoolMetin Döşlü is a seasoned distributed database engineer and leader with 13 years of experience building production-grade systems, currently based in Istanbul. He helped grow Citus into a scalable PostgreSQL extension—contributing core features like count-distinct in subqueries, binary COPY support, and modify-CTE handling—and continued that work through acquisition and leadership roles at Microsoft. As a Principal/Senior Software Engineering Manager he blends deep internals expertise with people and project management, guiding open-source database development in the Postgres ecosystem. Trained at Boğaziçi University (B.S. and M.S. in Computer Engineering), he pairs academic rigor with practical delivery across cloud services, traffic control systems, and distributed SQL. Notably, his commits touch core query processing rather than just tooling, reflecting a low-level mastery that informs his strategic decisions.
13 years of coding experience
13 years of employment as a software developer
M.S., Computer Engineering, M.S., Computer Engineering at Boğaziçi ÜniversitesiB.S., Computer Engineering, B.S., Computer Engineering at Boğaziçi University
English
Github Skills (9)
databases10
query-optimization10
citus10
postgresql10
distributed-database10
sql10
relational-databases10
sql-database10
database10
Programming languages (6)
Github contributions (5)
citusdata/citus
Feb 2016 - Oct 2020
Distributed PostgreSQL as an extension
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:2 releases, 11 reviews, 129 commits in 4 years 8 months
Contributions summary:Metin's commits focused on enhancing the core functionality of the Citus database extension. They implemented features to support count distinct operations within subqueries and optimized the COPY functionality, introducing binary format support for improved data transfer. Additionally, the user added support for modify CTEs and other complex modifications. The commits involved the core database code and SQL functionality, demonstrating a deep understanding of the database internals and query processing.
postgresqldatabasecitusmulti-tenantscale
citusdata/cms_topn
Aug 2015 - Aug 2017
Contributions:9 PRs, 14 pushes, 8 branches in 2 years
postgresqlcount-min-sketchsketchpostgresql-extension
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