Vladislav Vaintroub
Senior Software Engineer at MariaDB
Mannheim, Baden-Württemberg, Germany
Summary
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Rockstar🎓
Top SchoolVladislav Vaintroub is a Senior Software Engineer with 18 years of experience specializing in database engines, storage internals and cross-platform systems software. He has driven performance and scalability improvements in MariaDB and MySQL families—rearchitecting InnoDB background work, group commit logic and asynchronous I/O—and contributed security and portability fixes to widely used projects like MariaDB Connector/C. His career spans marquee teams at MariaDB, Amazon, Huawei and Sun/Oracle, with deep hands-on skills in backup/restore consistency, threadpool schedulers and Windows-specific reliability work. Based in Mannheim, Germany, he combines low-level C/C++ systems expertise with practical DBA-focused changes that improve production resilience. Notably, his contributions include restoring Windows functionality and adding server certificate verification to a prominent open-source client library, reflecting attention to both correctness and security. With an MS in Mathematics, he blends rigorous analytical thinking with decades of production-grade engineering.
17 years of coding experience
25 years of employment as a software developer
MS Mathematics, MS Mathematics at Omsk State University (OSU)
Russian, English, German
Stackoverflow
5,492reputation
771kreached
118answers
4questions
mariadb
top-1%
architecture
top-1%
windows
top-5%
compilation
top-5%
cmake
top-5%
string-comparison
top-5%
Github Skills (31)
ss10
c-language10
ssl10
mysql10
mariadb10
architecture10
windows10
sslv310
database-administration10
cmake10
schannel10
backup10
re-store10
cprogramming-language10
compilation9
Programming languages (13)
Github contributions (5)
MariaDB/server
Aug 2008 - Jan 2023
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:
Database Engineer / Database Administrator
Database Engineer / Database AdministratorContributions:187 reviews, 1889 commits, 68 PRs in 14 years 7 months
Contributions summary:Vladislav primarily contributed to the MariaDB server repository, focusing on backup and database administration tasks. Their work involved adding, modifying, and deleting various scripts, functionalities and metadata related to the backup process. The user implemented code for handling table renames during prepare phase and modified data structures, and the code for managing file-handling and data consistency during backup and restore operations to ensure data integrity and reliability.
licensedsql-servermysqlsqlmariadb-server
mariadb-corporation/mariadb-connector-c
Jun 2018 - May 2022
MariaDB Connector/C is used to connect applications developed in C/C++ to MariaDB and MySQL databases.The client library is LGPL licensed.
Role in this project:Back-end Developer
Back-end DeveloperContributions:55 commits, 4 PRs, 219 pushes in 3 years 11 months
Contributions summary:Vladislav contributed to the MariaDB Connector/C project by addressing various issues related to code correctness, security, and build processes. Their work includes fixing a 'variable maybe uninitialized' warning, restoring functionality on Windows, implementing server certificate verification, and improving error handling for Schannel connections. They also removed unnecessary code, refactored certificate handling, and addressed CMake build issues, showcasing a focus on code quality, security, and portability.
licensedmysql-databasesmysqlclient-libraryconnector
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