William O'neill
Staff Site Reliability Engineer at Vantage
Canton, Georgia, United States
Summary
🤩
Rockstar🎓
Top SchoolWilliam O'neill is a Staff Site Reliability Engineer with 13 years of experience modernizing cloud infrastructure and driving large-scale migrations. He has led transformative projects—most notably a three-year Kubernetes migration at SurveyMonkey that refactored 200 services and cut compute costs by over 40% (~$2M annual savings)—while maintaining zero downtime. Skilled across AWS, GCP, Terraform, Kubernetes, and CI/CD tooling like ArgoCD and GitHub Actions, he combines deep automation expertise with practical cost and security-minded engineering. William excels at building high-velocity remote teams and creating self-service infrastructure patterns that remove bottlenecks for feature teams. His background spans startups to enterprise, from designing immutable infra at Spreedly to consolidating DNS and CDN at MailChimp, showing a continuous focus on efficiency and resilience. Based in Canton, Georgia, he also supports Emmy-winning media production workflows, bringing a rare mix of SRE rigor and creative-industry operational experience.
13 years of coding experience
24 years of employment as a software developer
Bachelor of Arts - BA Mass Communication/Media Studies, Bachelor of Arts - BA Mass Communication/Media Studies at Temple University
Github Skills (175)
fedora-coreos10
python10
ubuntu10
ruby10
synchronize10
coreos10
ansible-role10
azure-devops10
rbenv10
iot10
gitlab10
asdf10
npm10
raspberry-pi10
bare-metal9
Programming languages (14)
Github contributions (5)
woneill/resume
Mar 2020 - Mar 2025
:page_facing_up: Awesome CV is LaTeX template for your outstanding job application
Contributions:4 PRs, 18 pushes, 3 branches in 5 years 1 month
templatelatex-templatejobcv-templatelatex
woneill/hello_world_flask_ec2
Nov 2019 - Oct 2023
A simple flask app that returns the private IPv4 DNS hostname of the EC2 instance it's running on.
Contributions:17 PRs, 18 pushes, 16 branches in 3 years 11 months
returnspythonec2hostnamedns
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