Sachin Kumar
Software Engineer at eBay
Dublin, Ireland
Summary
👤
Senior🎓
Top SchoolSachin Kumar is a software engineer with nine years of experience specializing in distributed databases, replication, and backend systems, currently working at eBay after a stint on Aurora PostgreSQL at AWS. He has deep hands-on expertise in MariaDB/Galera internals—contributing bug fixes and replication improvements to the widely used MariaDB server—and has built unique index support and replication fixes at server level. Comfortable across performance optimization and test-suite hardening, he blends systems-level rigor with a penchant for algorithmic problem solving and a long-term interest in machine learning research. Known for attention to detail and rapid learning, he has moved between startups and hyperscale teams, delivering practical fixes that improve reliability in production databases. Based in Dublin, he combines production-grade engineering with a curiosity for research, positioning him to bridge applied database engineering and future ML-focused work.
9 years of coding experience
9 years of employment as a software developer
Bachelor of Engineering - BE, Bachelor of Engineering - BE at Technological University of the Shannon, Athlone CampusBachelor’s Degree Information Technology, Bachelor’s Degree Information Technology at Bharati Vidyapeeth
English, Hindi
Github Skills (12)
galera10
databases10
database-replication10
sql-database10
mariadb10
database10
mysql9
sql9
relational-databases9
c-language8
storage-engine8
cprogramming-language8
Programming languages (1)
Github contributions (5)
MariaDB/server
Jan 2017 - Aug 2021
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
Role in this project:
Backend Developer & Database Engineer
Backend Developer & Database EngineerContributions:216 commits, 22 comments in 4 years 7 months
Contributions summary:Sachin's contributions primarily involve bug fixes and improvements to the MariaDB server, particularly in the context of Galera cluster and replication features. They addressed issues related to incorrect row counts, improper handling of binary log events, and failures in test cases. Key areas of focus include database replication, Galera integration, and performance optimization. The commits demonstrate a good understanding of the database internals and replication mechanisms.
licensedsql-servermysqlsqlmariadb-server
quangti/server
May 2018 - Jan 2019
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
Contributions:35 commits in 8 months
licensedsql-servermysqlsqlmariadb-server
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