About Dennis
German
Native or bilingual
English
Fluent
Experience
- Deutsche Telekom AGEscalation Management Business CustomersTELECOMMUNICATIONSMarch 2018 - June 2023 (5 years and 3 months)- 2nd/3rd Level Analysis Network, VoIP, Application- Management of High-Level Escalations (Major, Critical)- Quality Management
- DK Software SolutionsFreelancerTELECOMMUNICATIONSApril 2025 - Today (1 year and 2 months)Specialization: Automation, AI Integration, Protocol Analysis,Performance Troubleshooting. Abstract complex situations,isolate the core question, build the right solution — Web, Backend,Desktop or CLI.
- Deutsche Telekom AGService Management IMS (VoIP)TELECOMMUNICATIONSJune 2023 - March 2026 (2 years and 9 months)- Monitoring and Quality Assurance of the IMS Platform- Protocol Analysis in Incident Cases- Vendor Management- Further Development and Error Correction
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Certifications
- Linux LPIC 3 - Virtualization and ContainerizationLPI2025