Call Manager SME (Subject Matter Expert)

Job Description

Job Description

Position Summary

Vision IT is seeking a highly skilled Call Manager Subject Matter Expert (SME) to support enterprise voice and unified communications systems at Los Angeles Air Force Base. The ideal candidate will provide technical leadership, administration, troubleshooting, and sustainment of Cisco Call Manager and related VoIP infrastructure within a secure DoD environment.

This role requires deep expertise in Cisco Unified Communications technologies, strong problem-solving skills, and the ability to support mission-critical communications systems onsite at LAAFB.

Key Responsibilities

• Administer, configure, maintain, and support Cisco Unified Communications Manager (CUCM) environments
• Serve as the technical SME for enterprise voice, VoIP, and unified communications systems
• Perform system upgrades, patching, troubleshooting, and performance tuning
• Support Cisco Unity Connection, voice gateways, SIP trunks, and related collaboration technologies
• Monitor and maintain voice network availability, reliability, and security
• Diagnose and resolve complex voice and network-related issues in a timely manner
• Collaborate with cybersecurity, network, and systems teams to ensure compliance with DoD security standards
• Develop and maintain technical documentation, diagrams, and standard operating procedures
• Support incident response, change management, and continuity of operations activities
• Provide technical guidance and mentorship to junior team members as needed

• Active DoD Secret Clearance (must be current and maintainable)
• CompTIA Security+ certification (or DoD 8570/8140 compliant equivalent)
• 10–15 years of experience supporting Cisco Unified Communications, VoIP, and enterprise telephony systems
• Strong hands-on experience with Cisco Unified Communications Manager (CUCM)
• Experience supporting VoIP, SIP, Cisco Unity, and enterprise collaboration platforms
• Knowledge of voice gateways, dial plans, call routing, and QoS
• Understanding of network protocols including TCP/IP, DNS, DHCP, and VLANs
• Ability to troubleshoot complex unified communications environments
• Ability to work onsite full-time at LAAFB

• Cisco certifications such as CCNA Collaboration, CCNP Collaboration, or equivalent
• Experience supporting DoD or federal government communication systems
• Familiarity with DISA STIGs and DoD cybersecurity compliance requirements
• Experience with Microsoft Teams voice integration or hybrid telephony environments
• Strong communication, documentation, and customer support skills
• Experience in highly available and mission-critical enterprise environments

Why Vision IT?

At Vision IT, we lead with People First, ensuring our employees and customers thrive. We foster an environment of compassion, servant leadership, and operational excellence, enabling our teams to support mission-critical logistics with integrity and professionalism. If you are passionate about IT asset management, logistics, and ensuring operational success in a DoD environment, we want you on our team.

At Vision IT, we prioritize the health, well-being, and financial security of our employees with a comprehensive benefits package, including:

• 401(k) Plan : Company matching contributions to help you save for retirement.
• Dental & Vision Insurance : Coverage for dental care, eye exams, glasses, and contacts.
• Health Insurance : Comprehensive medical coverage.
• Paid Time Off (PTO) : Generous policy to maintain work-life balance.
• Disability Insurance : Short-term and long-term protection for financial stability.
• Life & AD&D Insurance : Coverage for life and accidental death/dismemberment.
• Supplemental Benefits : Voluntary benefits for critical illness, accident, and hospital care.

We are dedicated to supporting your health, well-being, and long-term financial goals.