# Eduardo Silva Pereira
Building since 2015. Not reviewed by Eduardo.
Page: https://mrrmaker.com/@eduardosilva
Created Fluent Bit (2015); sold Calyptia to Chronosphere (2024)
In their words: "Creator & Maintainer of Fluent Bit | […] Former Co-Founder & CEO of Calyptia (acquired by Chronosphere)" (github.com)

## Numbers
- Products: 3
- Building since: 2015

## Products
- Fluent Bit (2015 →): running
- Calyptia (2020 – 2024): sold, sold to Chronosphere
- Monkey Web Server: dates not stated in any source

## Timeline
- Nov 2025: Fluent Bit: Version 4.2 released alongside the project's 10-year anniversary [stated]
- Apr 2025: On KubeCon + CloudNativeCon Europe 2025, talk: Fluent Bit v4: A Decade of Innovation and What’s Next [stated]
- Jan 2024: Sold Calyptia to Chronosphere [verified]
- Jan 2024: Joined Chronosphere with the Calyptia team [stated]
- Jan 2024: Fluent Bit: More than 12 billion downloads [stated]
- Oct 2023: On Software Engineering Daily, episode: Observability with Eduardo Silva [stated]
- Aug 2023: On OpenObservability Talks, episode on Fluentd and Fluent Bit [stated]
- 2023: On DockerCon 2023, talk: Processing Docker Containers Logs and Metrics at Scale [stated]
- Mar 2022: Calyptia: Closed a $5 million seed round led by Sierra Ventures and Carbide Ventures [stated]
- 2020: Co-founded Calyptia [stated]
- Aug 2019: On Contributors: An Open Source Software Podcast, episode on Fluent Bit [stated]
- 2015: Launched Fluent Bit [stated]
- 2015: Joined Treasure Data, on the Fluentd team [stated]
- 2008: Joined Oracle [stated]

## How sure
5 verified by someone other than Eduardo, 32 stated by Eduardo in public, 2 outdated. Read on 11 Oct 2026.

## Sources
- Eduardo Silva Pereira / Personal Blog, edsiper.com: https://edsiper.com
- About | Eduardo Silva Pereira / Personal Blog, edsiper.com: https://edsiper.com/about
- github.com: https://api.github.com/users/edsiper
- Chronosphere Acquires Calyptia, Creators of Leading Observability Pipeline Solutions, chronosphere.io: https://chronosphere.io/news/chronosphere-acquires-calyptia/
- Welcome Calyptia to Chronosphere, chronosphere.io: https://chronosphere.io/learn/calyptia-acquisition-announcement/
- Chronosphere acquires Calyptia to extend its observability platform, techcrunch.com: https://techcrunch.com/2024/01/22/chronosphere-acquires-calyptia-to-extend-its-observability-platform/
- Why Sierra Invested - Calyptia - Sierra Ventures Blog, sierraventures.com: https://www.sierraventures.com/content/why-sierra-invested-calyptia
- Calyptia Raises $5M to Bring Open Source Fluent Bit to the Enterprise, Deliver First-Mile Observability, prnewswire.com: https://www.prnewswire.com/news-releases/calyptia-raises-5m-to-bring-open-source-fluent-bit-to-the-enterprise-deliver-first-mile-observability-301492394.html
- Fluent Community Announces Fluent Bit v4.2 Release, chronosphere.io: https://chronosphere.io/news/fluent-bit-v4-2/
- Fluent Bit: Lightweight Logging for Cloud Native Applications - Eduardo Silva - DEV Community, dev.to: https://dev.to/contributors-open-source/fluent-bit-lightweight-logging-for-cloud-native-applications-eduardo-silva
- Observability with Eduardo Silva - Software Engineering Daily, softwareengineeringdaily.com: https://softwareengineeringdaily.com/podcasts/observability-with-eduardo-silva/
- What's New with Fluentd & Fluent Bit | Logz.io, logz.io: https://logz.io/blog/whats-new-with-fluentd-fluentbit/
- Speaker Details: DockerCon 2023, dockercon.com: https://www.dockercon.com/2023/speaker/895936/eduardo-silva
- Join us for OpenTelemetry Talks and Activities at KubeCon + CloudNativeCon Europe 2025, opentelemetry.io: https://opentelemetry.io/blog/2025/kubecon-eu/
- fluentbit, fluentbit.io: https://fluentbit.io
- Monkey Server, monkeywebserver.com: https://monkeywebserver.com
- Site checks on 2026-10-11, MRRMaker: https://mrrmaker.com/how-it-works#checks

Labels: "verified" means confirmed by someone other than the founder; "stated" means the founder said it in public. Method: https://mrrmaker.com/how-it-works