Marc Alff
Software Architect at Oracle
Greater Paris Metropolitan Region France
Summary
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RockstarMarc Alff is a Software Architect with 16 years of experience based in the Greater Paris area, specializing in database systems and backend engineering. He brings deep MySQL/MariaDB expertise, having contributed bug fixes and performance improvements to the MariaDB server, including fixes for performance schema, information schema buffer overflows, and charset/collation issues. Marc also contributes to infrastructure-focused open source like OpenTelemetry C++, improving documentation, dependency hygiene, and SDK stability to make observability tooling more usable. He blends low-level database internals knowledge with practical developer-facing improvements, ensuring systems are both performant and maintainable. Known for quietly strengthening foundational projects, he focuses on reliability, clear documentation, and long-term maintainability rather than flashy features.
16 years of coding experience
English, French
Stackoverflow
8,297reputation
1.4mreached
126answers
2questions
sql
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doxygen
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Github Skills (29)
c-language10
admin10
mysql10
mariadb10
distributed-tracing10
databases10
database-administration10
c1110
c1710
sdk10
sql10
opentelemetry10
cprogramming-language10
relational-databases10
database10
Programming languages (13)
Github contributions (5)
open-telemetry/opentelemetry-cpp
Jun 2022 - Jan 2023
The OpenTelemetry C++ Client
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 releases, 941 reviews, 38 commits in 7 months
Contributions summary:Marc primarily contributed to improving the documentation and upgrading dependencies within the OpenTelemetry C++ Client repository. Their work included fixing documentation related to the Jaeger HTTP exporter, updating the nlohmann_json library to version 3.10.5, and fixing the trace SDK builder. These changes suggest a focus on maintaining and enhancing the project's stability and usability for developers. Furthermore, their contributions include fixing issues related to the SDK.
apitracingsdktelemetryotel
MariaDB/server
Mar 2010 - Mar 2014
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:211 commits in 4 years 1 month
Contributions summary:Marc primarily focused on database-related bug fixes and improvements within the MariaDB server repository. Their contributions involved resolving issues related to performance schema, buffer overflows in information schema queries, and instrumentation interfaces. The changes also included pushing updates to older MySQL versions and addressing character set/collation-related problems.
licensedsql-servermysqlsqlmariadb-server
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