Dennis Doorn
Lead Site Reliability Engineer at Sitecore
Greater Ottawa Metropolitan Area Canada
Summary
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Rockstar🎓
Top SchoolDennis Doorn is a Lead Site Reliability Engineer based in the Greater Ottawa area with a career rooted in quality engineering and software testing stretching back to the mid-2000s. Promoted internally at Sitecore from Senior QA and Lead QA roles into SRE leadership, he brings a pragmatic blend of test-driven rigor and operational focus to production systems. His background includes multi-year tenures at Microsoft and embedded roles in test automation and verification, giving him deep expertise in reliability, observability, and building resilient release pipelines. Known for translating complex engineering challenges into repeatable, auditable processes, he pairs hands-on technical skill with team mentorship and process improvement. Despite a title change to SRE, his long history in QA suggests a unique strength in preventing incidents through design and automated validation rather than just firefighting.
4 years of coding experience
17 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at University of Waterloo
English
Github Skills (49)
sitecore9
diagnostics8
bots8
health-check8
payment-service7
visualizations7
visa7
bot-framework6
elasticsearch6
out-of-process6
elastic6
wpf6
exchange6
asp-net6
android6
Programming languages (4)
Github contributions (5)
ddoorn/oc-documentation
Oct 2021 - Oct 2021
Contributions:1 push in 1 day
Sitecore/container-deployment
Dec 2022 - Sep 2023
Repository for official Sitecore, community and demo deployment files. This will provide Sitecore customers with examples on how to deploy Sitecore containers using various methods such as compose, k8s and helm.
Contributions:7 reviews in 9 months
containershelmdeploymentcustomersdocker
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