Oli Sennhauser
Senior Consultant And CEO at FromDual GmbH
Uster, Zurich, Switzerland
Summary
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SeniorOli Sennhauser is a Senior Consultant and CEO based in Zurich with over a decade of hands-on expertise in MariaDB, MySQL and Galera performance tuning, architecture, high availability and recovery. He founded and leads FromDual GmbH, delivering consulting, remote-DBA and training services to enterprises and the MySQL community while retaining deep operational experience from roles at MySQL and Sun Microsystems. Oli’s background spans both Oracle and MySQL ecosystems, giving him a rare cross-platform perspective on database operations and migration challenges. He is known for pragmatic solutions that balance performance, resilience and maintainability, and for translating complex failure modes into actionable runbooks. Though primarily focused on databases, his career shows a consistent thread of community engagement and knowledge transfer through training and consulting.
11 years of coding experience
1 year of employment as a software developer
English, German, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (60)
amazon-web-services10
portal10
hugo9
json9
analytics9
suitecrm9
crm9
tcp9
rdbms9
sql9
ai9
php9
database9
clickhouse9
documents9
Programming languages (10)
Github contributions (5)
shinguz/documentation
Feb 2017 - Mar 2025
Galera Cluster documentation
Contributions:2 pushes in 8 years 2 months
galera-clusterclustergalera
FromDual/MyEnv
Feb 2016 - Feb 2024
Contributions:7 pushes, 1 branch, 9 tags in 8 years 1 month
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