Alejandro Lopez
Senior Software Engineer at Red Hat
Greater Grenoble Metropolitan Area France
Summary
👤
Senior🎓
Top SchoolAlejandro Lopez is a Senior Software Engineer based in Grenoble with over two decades of experience building high-performance, highly available systems for Linux and Solaris environments. He specializes in HPC, clustering, LDAP/identity services and low-level server software using C and Java, with hands-on experience in Python and x86 assembly. At Red Hat he contributes to the widely used SSSD project, improving domain initialization and tooling for per-component debug control, reflecting a pragmatic focus on maintainability and operational diagnostics. His career spans mission-critical work at Sun/Oracle on carrier-grade and directory services and R&D in flash accelerators at Atos, evidencing both deep systems expertise and hardware-aware optimization. Known for solving distributed systems challenges across geographically dispersed teams, he pairs rigorous engineering with an eye for modular, testable designs.
10 years of coding experience
27 years of employment as a software developer
High School, High School at Instituto Libre de Segunda EnseñanzaMaster’s Degree, Computer Science, Master’s Degree, Computer Science at University of Buenos Aires
English, Spanish, French
Github Skills (7)
c1710
sssd10
c1110
dbus10
configuration-management9
system-administration9
debugging8
Programming languages (6)
Github contributions (5)
SSSD/sssd
Mar 2022 - Dec 2022
A daemon to manage identity, authentication and authorization for centrally-managed systems.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:553 reviews, 58 commits, 67 PRs in 9 months
Contributions summary:Alejandro's contributions focused on refactoring and enhancing the configuration database (confdb) within the SSSD daemon, specifically improving domain initialization and management. They implemented D-Bus getters and setters for the debug level, and refactored a function to improve modularity. The user also worked on expanding the functionality of the sssctl tool to manage debug levels, allowing setting them on a per-component basis.
authenticationauthorization
aplopez/sssd
Mar 2022 - Mar 2026
A daemon to manage identity, authentication and authorization for centrally-managed systems.
Contributions:2 PRs, 393 pushes, 96 branches in 4 years 1 month
daemonauthenticationauthorizationidentity
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