Stephen Colebrook
Senior Cloud Engineer at Ippon Technologies USA
Richmond, Virginia, United States
Summary
🤩
Rockstar🎓
Top SchoolStephen Colebrook is a Principal Consultant and cloud architect with 30+ years in IT and over 17 years of hands-on AWS experience, specializing in enterprise cloud organization, serverless/cloud-native patterns, and governance that balances protection with developer velocity. He has led Cloud Centers of Excellence, enterprise landing zone implementations, and cost-saving modernization efforts across finance, government, and healthcare, and has repeatedly reduced failover and processing times through automation. A long-time contributor to CloudCustodian and to the ownCloud core, he brings practical open-source experience in policy-driven governance and backend systems. Stephen pairs deep systems and database knowledge with broad language experience (Python, Objective‑C/C/C++, PHP, shells, PowerShell) and a track record of turning complex requirements into auditable, repeatable pipelines and runbooks. Based in Richmond, VA, he is equally comfortable mentoring teams and writing the low-level automation that keeps large cloud estates secure and efficient.
12 years of coding experience
11 years of employment as a software developer
Higher School Certificate, Higher School Certificate at Toongabbie Baptist Christian Community SchoolLvl 4 Certificate, Lvl 4 Certificate at Sydney iTech - WorkVenturesBSc, BSc at Macquarie University
Github Skills (25)
cloud-computing10
back-end-development10
python10
configuration-management10
php10
lambdas10
aws10
lambda10
serverless10
owncloud10
command-line-interface9
rule-engine9
eventhub9
aws-eventbridge9
command-line9
Programming languages (9)
Github contributions (5)
owncloud/core
May 2014 - Jun 2016
:cloud: ownCloud web server core (Files, DAV, etc.)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits, 3 PRs, 2 pushes in 2 years 1 month
Contributions summary:Stephen contributed to the ownCloud web server core, primarily focusing on enhancing the server's functionality and maintainability. Their work involved implementing features like custom log file paths and adding a command-line interface to manage maintenance mode. They also refactored code to use OC\Config and improved the notification system. Additionally, they addressed theming by integrating iOS and Android client URLs.
owncloudweb-serverjstreeself-hostingjavascript
cloud-custodian/cloud-custodian
Feb 2023 - Feb 2025
Rules engine for cloud security, cost optimization, and governance, DSL in yaml for policies to query, filter, and take actions on resources
Role in this project:Backend & Cloud Engineer
Backend & Cloud EngineerContributions:7 reviews, 10 PRs, 20 comments in 2 years
Contributions summary:Stephen primarily contributed to the backend functionality of the cloud-custodian project. They fixed naming conflicts in policy loading, passed validation parameters, and added support for Python 3.10 and 3.11 in lambda policy schema. They also implemented eventbridge scheduler mode for policy lambdas and addressed related issues with empty detail payloads and missing detail keys in event dictionaries.
gcpquery-filterserverlesscompliancecloud-security
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