Network telecommunications administrator

The Telecom Administrator is responsible for enterprise voice infrastructure, PBX migration, and telecom lifecycle operations across cloud, datacenter, and branch environments. This role focuses on Cisco Webex Calling, Cisco CUBE SIP integration, multi-vendor PBX transitions, and telecom modernization initiatives. This position supports acquisitions, ensures spam mitigation, and maintains reliable voice connectivity across a distributed enterprise.

Key Responsibilities

Administer and troubleshoot Cisco Webex Calling environments

Integrate Cisco CUBE SIP gateways for voice migrations

Support multi-vendor PBX transitions to Webex

Manage call routing, auto attendants, hunt groups, dial plans, and provisioning

Coordinate number porting and carrier cutovers

Design and troubleshoot SIP trunk architecture

Maintain voicemail, fax, and call recording integrations

Monitor call quality and voice performance

Apply spam mitigation techniques and STIR/SHAKEN standards

Work with carriers to manage call reputation and spam issues

Support branch onboarding and M&A integrations

Maintain telecom inventory, documentation, and vendor records

Perform platform upgrades and controlled change management

Participate in maintenance windows and outage response

Required Qualifications

Enterprise Vo IP administration experience

Cisco Webex or Cisco UC platform experience

Hands-on Cisco CUBE SIP configuration

Experience migrating multi-vendor PBX environments

Strong understanding of SIP architecture and voice routing

Knowledge of STIR/SHAKEN and spam mitigation practices

Advanced troubleshooting in line voice environments

Experience coordinating with telecom carriers

Ability to work independently during migrations or outages

Preferred Qualifications

Experience with Mitel, Avaya, Cisco, or other enterprise PBX platforms

Experience with cloud PBX environments

Familiarity with firewall/Qo S concepts impacting voice

Exposure to WAN/SD-WAN environments supporting Vo IP

Experience with acquisition integration projects

Telecom certifications or Cisco collaboration certifications

Key Traits

Calm under pressure

Detail-oriented and methodical

Strong vendor coordination skills

Fast learner in multi-vendor environments

Documentation driven

Ownership mentality

Collaborative communicator