Seth Chisamore
Director, Site Reliability Engineering at Tomo
Marietta, Georgia, United States
Summary
🤩
Rockstar🎓
Top School
Top expert inCloud Infrastructure and Automation Engineering
Seth Chisamore is a Director of Site Reliability Engineering with over 20 years in software and 16 years of professional experience leading distributed, remote-first engineering teams. He builds and operates large-scale delivery platforms—at Chef he architected package distribution serving 400+ TB/month and drove a queue-based continuous delivery model that cut costs and sped engineering flow. Seth blends deep DevOps and backend expertise (notably long-term contributions to Chef, Omnibus, Test Kitchen, InSpec and Habitat) with hands-on automation, CI/CD and release engineering. He has repeatedly modernized build and test infrastructure, improved cross-platform packaging, and introduced ChatOps and dogfooding practices to accelerate safe releases. Based in Marietta, GA, he now leads SRE at Tomo while remaining an active open-source contributor across infrastructure projects. Outside work he’s a self-described geek, husband, and herder of triplets—an indication of his knack for orchestrating complex systems under pressure.
16 years of coding experience
23 years of employment as a software developer
BA, Management Information Systems, BA, Management Information Systems at University of Notre Dame
Github Skills (86)
test-kitchen10
package-management10
python10
testing10
bash10
acceptance-testing10
ubuntu10
ruby10
chef-client10
automation10
infrastructure10
automation-testing10
build-automation10
bootstra10
markdown10
Programming languages (14)
Github contributions (5)
sous-chefs/jenkins
Jan 2013 - Nov 2015
Development repository for the jenkins cookbook
Role in this project:
DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:253 commits, 52 PRs, 57 pushes in 2 years 10 months
Contributions summary:Seth focused on improving the build and deployment process for the Jenkins cookbook. They refactored recipes to streamline server installation and updated the recipes to use the latest best practices. Contributions include implementing a system to allow Jenkins slave processes to run under specific service accounts. They also integrated the new runit cookbook for managing services.
jenkinscontinuous-testingcookbookgroovycontinuous-integration
chef/omnibus-software
Jul 2012 - Nov 2020
Open Source Software for use in Omnibus built packages
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:2 reviews, 220 commits, 86 PRs in 8 years 5 months
Contributions summary:Seth primarily contributed to the build configuration and system setup for the `omnibus-software` repository. Their contributions included modifying the build process for the runit configuration, including its execution and ensuring the correct paths and permissions. They also updated software definitions, specifically upgrading Erlang, adding Rebar, integrating omnibus-ctl, and configuring libedit and other dependencies to improve software builds.
omnibusopen-source-software
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