Dennis Schmalacker
Senior Software Engineer at Checkmk
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolDennis Schmalacker is a Senior Software Engineer based in Barcelona with 11 years of experience building resilient backend systems and driving DevOps and cloud-native transformations. He has led refactors and architecture overhauls—most recently at TAKKT—improving developer experience, reducing technical debt, and enabling a shift from single-tenant to multi-tenant e-commerce platforms. Comfortable across Python, Kubernetes, IaC and SaaS operations, he pairs hands-on engineering with leadership roles including interim Product Owner and team lead responsibilities. Dennis has delivered full self-service signup and billing systems, guided multiple service refactors, and contributed to cross-team DevOps practices. A pragmatic problem solver, he even applied engineering skills during a six-month WWOOF sabbatical to maintain farm infrastructure and sharpen adaptability. Now at Checkmk, he continues to focus on scalable backend and DevOps excellence while mentoring peers and improving delivery velocity.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Science - BS Wirtschaftsinformatik, Bachelor of Science - BS Wirtschaftsinformatik at Baden-Wuerttemberg Cooperative State University (DHBW)
Stackoverflow
415reputation
35kreached
14answers
5questions
Github Skills (198)
docker-machine10
cms10
python10
hikvision10
django10
duplicate-detection10
axis10
hetzner-cloud10
content-management-system10
cloud-api10
kubernetes-ui10
user-experience10
wagtail10
content-management10
flexibility10
Programming languages (12)
Github contributions (5)
NotANormalNerd/roundcube-multiple-smtp
Feb 2018 - Jan 2021
Contributions:2 pushes, 1 branch in 2 years 11 months
NotANormalNerd/homdesk.click
Feb 2016 - Mar 2018
Contributions:18 pushes, 1 branch, 9 issues in 2 years 1 month
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