Costa Tsaousis
Founder at netdata, Inc.
Greece, United States
Summary
🤩
Rockstar
Top expert inComprehensive Open-Source Technology Ecosystem
Costa Tsaousis is a founder and seasoned back-end and SRE engineer with 13 years of experience building and hardening high-performance monitoring systems. As CEO of Netdata, he combines product leadership with hands-on work fixing concurrency, memory, and compression issues to improve stability and observability at scale. He has contributed notable integrations—such as adapting fping for Netdata-friendly output—and deep maintenance work on the widely used netdata project, reflecting a focus on reliability and instrumentation. Based in Greece with ties to the U.S., he blends practical DevOps craftsmanship with entrepreneurial drive to turn complex infrastructure telemetry into actionable insights.
12 years of coding experience
Stackoverflow
349reputation
16kreached
8answers
2questions
Github Skills (25)
maintenance10
command-line-interface10
linux10
network-monitoring10
c-programming10
c1110
c1710
debug9
debugging9
devops9
sys9
reliability-engineering9
reliability9
systemd9
performance-monitoring8
Programming languages (16)
Github contributions (5)
netdata/netdata
Jun 2013 - Jan 2023
X-Ray Vision for your infrastructure!
Role in this project:
Back-end Developer & System Reliability Engineer (SRE)
Back-end Developer & System Reliability Engineer (SRE)Contributions:8 releases, 250 reviews, 5592 commits in 9 years 9 months
Contributions summary:Costa focused on fixing various issues identified by coverity, suggesting a primary role in code maintenance and quality assurance. They addressed issues related to data compression, potential memory corruption, and race conditions, indicating contributions to system reliability. Furthermore, the user implemented fixes related to the systemd-journal and networking infrastructure, enhancing the monitoring capabilities and overall stability of the platform.
observabilitynotificationsgrafanaprometheusdashboard
schweikert/fping
Oct 2016 - Nov 2016
High performance ping tool
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:8 commits, 2 PRs, 18 comments in 17 days
Contributions summary:Costa primarily focused on enhancing the functionality of `fping` to integrate with the netdata monitoring tool. Their contributions include adding a new command-line option (`-N`) to format the output specifically for netdata compatibility. Additionally, they modified the code to generate area charts and other quality metrics relevant to netdata. These changes involved modifying the output format and adding a new dimension to track excess packets, indicating an effort towards improving the monitoring and visualization capabilities of the tool.
golangfpingbsd-licensenetwork-toolslinux
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