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Senior Admin Voice & PBX (m/w/d)

Minden, Westfalen, NORDRHEIN_WESTFALENFull-time2026-01-26 → 2026-10-16

Core

Senior specialist for administering, configuring, and operating modern voice and PBX communication systems for enterprise clients.

Role type

Senior IC Voice & PBX Systems Administrator

Builds

Voice communication solutions and PBX infrastructure for enterprise customers

Domain

Telecommunications / VoIP

Required skills

Voice and PBX system administration, VoIP configuration, SIP and RTP troubleshooting, network analysis (LAN/WAN), customer consultation, incident management

Preferred skills

SIP-Trunk management, advanced monitoring tool usage

Technologies

3CX, SIP, RTP, RTCP, TLS, QoS, Wireshark

Responsibilities

Consulting customers on telephone system deployment, acting as technical contact for issues and change requests, analyzing and resolving incidents using monitoring systems, creating solution concepts for project requirements, performing deep-dive analysis and resolution of SIP/RTP issues, supporting customers with SIP-Trunk usage

Seniority

Senior, hands-on IC