Hannu Valtonen
Chairman Of The Board at Ovido
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolHannu Valtonen is a Helsinki-based technology leader with 15 years of experience architecting scalable distributed systems and very large databases. As co-founder and long-time Chief Product Officer at Aiven and current Chairman of Ovido and board member at Aiven, he blends product strategy with deep hands-on expertise in DBaaS and high-availability architectures. His career began in systems and network-level engineering and evolved through roles at F-Secure where he led scalability efforts and large PostgreSQL deployments. He also co-founded Ohmu Ltd, providing consulting on scaling open-source database solutions for enterprises and public organizations. Beyond leadership, Hannu contributes to open-source reliability by improving cross-platform test suites—evidenced by test robustness work on the watchdog filesystem-monitoring library—highlighting a pragmatic focus on portability and quality.
15 years of coding experience
13 years of employment as a software developer
Computer Science, Computer Science at Teknillinen korkeakoulu-Tekniska högskolanHigh School Diploma, High School Diploma at LYK
English, Swedish, German, French, Finnish
Github Skills (4)
unit-testing10
filesystem-events10
test-automation10
python10
Programming languages (8)
Github contributions (5)
gorakhargosh/watchdog
Mar 2014 - Mar 2014
Python library and shell utilities to monitor filesystem events.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:1 commit in 1 day
Contributions summary:Hannu primarily focused on fixing and improving the test suite for the `watchdog` library. Their contributions involved correcting failing unittests across different operating systems (Windows, macOS, and Linux) and addressing issues related to file system events, particularly those related to directory and file moves. They also updated the tests to accommodate platform-specific behavior, ensuring the tests' reliability across various environments. Their work directly improved the robustness and portability of the testing framework.
python-libraryeventspythonmonitorfilesystem-events
Ormod/pglookout
Feb 2015 - Sep 2022
PostgreSQL replication monitoring and failover daemon
Contributions:31 pushes, 17 branches in 7 years 8 months
postgresql-replicationdaemoncloudfoundrypostgresfailover
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