Sr. VoIP Call Manager

Vision Information Technology Consultants • Los Angeles, CA

3d

About The Position

At Vision IT, the Sr. VoIP Call Manager / Mobile (Systems Administrator) supports the operation and maintenance of Cisco Unified Communication Manager (UCM) and mobile systems. This hands-on technical role manages system upgrades, troubleshooting, and communication infrastructure maintenance while helping ensure high-quality service and system availability. The role supports VoIP services, mobile endpoints, and other critical communications infrastructure for Los Angeles AFB and its mission partners.

Requirements

• At least 5 years of hands-on VoIP administration experience, particularly with Cisco Unified Communication Manager (UCM), and experience managing mobile systems.
• Proficiency in VoIP systems, UCM configuration, and software-defined and physical endpoint management.
• Strong troubleshooting skills and experience resolving VoIP call management and mobile system issues.
• Experience performing system backups and recovery and ensuring data integrity across critical infrastructure systems.
• Familiarity with network configurations and the ability to manage and maintain configurations for VoIP and mobile systems.
• Ability to monitor systems, perform updates, and implement patches to maintain service availability.
• Secret clearance or higher, or eligibility for Department of Defense clearance.

Nice To Haves

• Cisco Certified Network Associate (CCNA) or Cisco Certified Network Professional (CCNP) certification.
• Experience with mobile endpoint management and configuration.
• Familiarity with network security protocols and VoIP infrastructure best practices.

Responsibilities

• Install software releases, system upgrades, and patches for Cisco Unified Communication Manager (UCM).
• Perform system backups and data recovery, maintaining data integrity across server components.
• Maintain system configurations and monitor performance to prevent downtime or failures.
• Create, configure, and maintain UCM client endpoints, including software-defined and physical devices.
• Troubleshoot and resolve endpoint, VoIP call management, and mobile system issues.
• Monitor system configurations and logs to protect data integrity, prevent failures, and maintain continuous VoIP services.
• Perform regular patching, system updates, and configuration changes to support system performance and security.
• Work with internal teams and customers to address issues and provide technical support for VoIP and mobile systems.
• Lead troubleshooting for network- and VoIP-related issues in collaboration with cross-functional teams.
• Maintain records of configurations, patch updates, and troubleshooting processes.
• Prepare reports on system performance, potential issues, and resolution steps for internal stakeholders.

Benefits

• 401(k) plan with company matching contributions.
• Dental and vision insurance.
• Health insurance.
• Paid time off (PTO).
• Short-term and long-term disability insurance.
• Life and accidental death and dismemberment (AD&D) insurance.
• Voluntary supplemental benefits for critical illness, accident, and hospital care.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed