About Dennis
German
Native or bilingual
English
Fluent
Experience
- Deutsche Telekom AGEscalation-Management GeschäftskundenTELECOMMUNICATIONSMarch 2018 - June 2023 (5 years and 3 months)- 2nd-/3rd-Level Analyse Netzwerk, VoiP, Application- Management von High-Level Eskalationen (Major, Critical)- Quality-Management
- DK Software SolutionsFreelancerTELECOMMUNICATIONSApril 2025 - Today (1 year and 2 months)Spezialisierung: Automation, AI-Integration, Protokoll-Analyse,Performance-Troubleshooting. Komplexe Situationen abstrahieren,Kernfrage isolieren, die richtige Lösung bauen — Web, Backend,Desktop oder CLI.
- Deutsche Telekom AGService-Management IMS (VoiP)TELECOMMUNICATIONSJune 2023 - March 2026 (2 years and 9 months)- Monitoring und Qualitätssicherung der IMS-Plattform- Protokoll-Analyse im Incident-Fall- Vendor-Management- Weiterentwicklung und Fehlerbehebung
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Certifications
- Linux LPIC 3 - Virtualization and ContainerizationLPI2025