Marcel Fest
Technical Lead T-CaaS K8s Platform
Wesel, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolMarcel Fest is a technical lead and cloud-native architect with a decade of experience building and operating Kubernetes platforms and SDN fabrics for carrier-grade environments. At Deutsche Telekom he progressed from SRE to Cloud Architect to Technical Lead for T‑CaaS K8s Platform, designing RFC‑compliant networking for modern cloud workloads and next‑generation 5G Core deployments. He combines hands‑on infrastructure expertise—Ceph cluster administration, Prometheus/Alertmanager/Grafana observability and Juniper monitoring—with practical automation work like ACME DNS integrations and cross‑service Git migrations. Marcel’s background in applied computer science and his early ML-focused bachelor thesis give him a pragmatic edge in blending data‑driven operations with scalable system design. Based in Wesel, Germany, he’s known for turning complex telecom requirements into maintainable, production‑ready platforms.
10 years of coding experience
9 years of employment as a software developer
Bachelor of Science - BS Applied Computer Science, Bachelor of Science - BS Applied Computer Science at Baden-Wuerttemberg Cooperative State University (DHBW)
Stackoverflow
33reputation
1kreached
1answer
5questions
Github Skills (200)
swagger10
bitnami10
exporter10
oas10
openapi10
k8s10
operator10
idempotent10
git-server10
lucky-framework10
swagger-ui10
api10
npm-registry10
egress10
prometheus10
Programming languages (23)
Github contributions (5)
Selfnet/multivault
Feb 2018 - Oct 2018
Simple CLI to manage distributed secrets for ansible.
Contributions:2 releases, 101 commits, 26 PRs in 7 months
cliansiblesecretssimple-clidistributed
Cellebyte/helm
Mar 2020 - Apr 2021
Contributions:36 PRs, 175 pushes, 23 branches in 1 year 1 month
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