Willi Carlsen
Cloud Engineer at DFDS
Copenhagen, Capital Region of Denmark
Summary
🤩
Rockstar🎓
Top SchoolWilli Carlsen is a Cloud Engineer with a decade of experience building reliable, cloud-native platforms primarily on AWS and Kubernetes, currently driving DFDS's move toward composable architecture and self-service infrastructure. He combines a physics master's mindset with hands-on SRE and data engineering experience, turning prototypes into production-ready systems and reducing technical debt through CI/CD and best practices. A practical open-source contributor, he improved node and DaemonSet handling in the popular vcluster project to enable more efficient virtual-cluster scaling. Willi is skilled at bridging developer needs and operational reliability, with a track record of shipping infrastructure that supports faster time-to-market. Based in Copenhagen, he brings a curious, analytical approach to complex distributed systems and platform design.
10 years of coding experience
7 years of employment as a software developer
Master's degree Physics, Master's degree Physics at Københavns Universitet - University of Copenhagen
English, Danish, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (9)
kubernetes10
go10
multitenancy10
multi-tenant10
kubernetes-pods10
vcluster10
cloud-native9
kubectl8
helm7
Programming languages (16)
Github contributions (5)
loft-sh/vcluster
Jan 2022 - Feb 2022
vCluster creates tenant clusters: fully isolated environments delivered as managed Kubernetes, or as the foundation for Slurm, Ray, Run:ai and inference clusters. Each gets its own API server, CRDs and RBAC, and runs on an existing cluster or standalone on bare metal. CNCF Certified Kubernetes.
Role in this project:
Backend Developer
Backend DeveloperContributions:3 reviews, 8 commits, 1 PR in 1 month
Contributions summary:Willi focused on enhancing the `vcluster` project's node management capabilities, particularly concerning DaemonSets within virtual Kubernetes clusters. Their work involved modifying the node syncer and fake syncer components to filter out DaemonSet pods, preventing nodes from being unnecessarily considered needed and enabling more efficient scaling. The user further refactored the filtering logic to differentiate between virtual and physical DaemonSets, utilizing annotations to identify and manage these pods correctly. The contributions show expertise in Kubernetes internals and optimization techniques relevant to virtual cluster environments.
aibare-metalinferencekubernetesrbac
wcarlsen/dotfiles
Mar 2019 - Feb 2023
Contributions:92 commits, 76 pushes, 1 branch in 3 years 11 months
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