Telephony Systems Administrator - Cisco UC & Voice Expert

AT&T; Columbia (MD); On-site; USD 89,000 - 129,000; Full time

Benefits offered by this job

Medical/Dental/Vision coverage

401(k) plan

Tuition reimbursement program

Paid Time Off and Holidays

Paid Parental Leave

Paid Caregiver Leave

Disability Benefits

Life and AD&D Insurance

Employee Discounts (AT&T plans)

Job summary

AT&T Global Public Sector seeks a detail-oriented Telephony System Administrator to maintain and secure enterprise voice systems in Columbia, Maryland. The role involves troubleshooting, security monitoring, and collaboration to ensure reliable communications for customer operations.

The candidate will manage Cisco Unified Communications Manager, plan maintenance, and document configurations, with a TS/SCI clearance and polygraph as required.

Qualifications

• Seven (7) years of experience as a System Administrator in similarly scoped programs.
• Bachelor’s degree in Math, Science, Engineering, Statistics, Engineering Management or related discipline; five additional SA years may substitute for a degree.
• Experience configuring and administering common TDM and VOIP call managers (Nortel Meridian, Cisco Unified Call Manager).
• Large-scale Cisco Voice deployments in multi-cluster environments and data networking.
• Working knowledge of H.323 and SIP; familiarity with Cisco UCS platforms, voice gateways, virtualization (ESXi).
• DoD 8570 IAM Level 2 required.

Responsibilities

• Provide enterprise-wide system administration for Cisco Unified Communications Manager and related systems.
• Plan regular maintenance tasks including updates and upgrades.
• Maintain current documentation of system configurations.
• Design, administer, and analyze dial plans and traffic routes for voice networks.

Skills

N/A

Education

Bachelor's degree in Math/Science/Engineering/Statistics/Engineering Management or related

Tools

Nortel Meridian PBXs

Cisco Unified Call Manager

Cisco Voice (multi-cluster)

H.323 / SIP

Cisco UCS platforms

voice gateways / ESXi virtualization

Job description

AT&T Global Public Sector seeks a detail-oriented Telephony System Administrator to maintain and secure enterprise voice systems in Columbia, Maryland. The role involves troubleshooting, security monitoring, and collaboration to ensure reliable communications for customer operations.

The candidate will manage Cisco Unified Communications Manager, plan maintenance, and document configurations, with a TS/SCI clearance and polygraph as required.