Bryan Mclellan
Firefighter EMT at Town of Mount Desert
Surry, Maine, United States
Summary
🤩
Rockstar🎓
Top School
Top expert inCloud Infrastructure and Automation Engineering
Bryan Mclellan is a senior DevOps and systems engineering leader with 17 years of experience building and stabilizing large-scale infrastructure, most recently as Staff DevOps Engineer at Astra and formerly directing infrastructure and automation teams at Chef. He blends hands-on expertise in build systems, configuration management, and cloud migrations—contributing to high-profile open-source projects like Chef, InSpec, Ohai and omnibus-software—with proven people leadership and cost-optimization results (including a 45% AWS cost reduction at Astra). Comfortable across Linux, Windows, and FreeBSD, he has deep experience fixing platform-specific build issues, improving security (ed25519 support, OpenSSL/FIPS changes) and hardening release pipelines. Based in Surry, Maine, he also serves his community as a full-time Firefighter/EMT and volunteer Fire Chief, bringing calm decision-making under pressure to both incident response and engineering crises.
17 years of coding experience
19 years of employment as a software developer
Certificate MCSE CCNA Security MCDBA, Certificate MCSE CCNA Security MCDBA at Strategy ComputersCertificate Firefighter I & II, Certificate Firefighter I & II at Hancock County Fire Academy
Github Skills (62)
dependency-management10
inspec10
postgresql10
package-management10
oai10
freebsd10
windows10
testing10
configuration-management10
patch10
cloud-infrastructure10
security10
ruby10
doc10
chef-client10
Programming languages (16)
Github contributions (5)
chef/knife-ec2
Feb 2012 - Jun 2019
Chef knife plug-in for AWS EC2
Role in this project:
DevOps Engineer
DevOps EngineerContributions:40 commits, 38 PRs, 38 pushes in 7 years 4 months
Contributions summary:Bryan's contributions primarily focus on enhancing the `knife-ec2` plugin for AWS EC2. They addressed instance tagging issues by implementing retries and handling specific Fog errors. Further work included improving the bootstrapping process by integrating the core Chef Infra features and optimizing the connection. In addition, there were code changes associated with the winrm bootstrap configuration. These changes improve the stability and functionality of the plugin.
ec2knifeplug-inawsplug
chef/ohai
Jan 2009 - Oct 2018
Ohai profiles your system and emits JSON
Role in this project:Back-end Developer
Back-end DeveloperContributions:291 commits, 28 PRs, 12 pushes in 9 years 10 months
Contributions summary:Bryan contributed extensively to the `ohai` project, focusing primarily on enhancing its capabilities for FreeBSD. Their work involved implementing FreeBSD-specific plugins for system information gathering, including uptime, hostname, CPU details, network attributes, file systems, and memory/swap information. They also corrected bugs and improved platform detection, as well as adding various network counters. The user demonstrated a strong understanding of system administration and Ruby for interacting with operating system internals to profile system attributes.
configurationconfiguration-managementohaiemitsruby
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