Are you ready to make a significant impact by supporting critical national security infrastructure? T-Rex Solutions is looking for a fully cleared Voice System Administrator to join our dynamic team in the Columbia, MD area.

Responsibilities

Join a mission-focused team supporting critical communications infrastructure. We are seeking a detail-oriented Telephony System Administrator who brings strong technical troubleshooting, security monitoring, and collaboration skills to help maintain reliable, compliant, and secure communications systems for customer operations.

Responsibilities Include:

Provide overall system administration for an enterprise-wide Cisco Unified Communications Manager and related systems.
Plan regular maintenance tasks including updates and upgrades.
Maintain current and accurate documentation of system configurations.
Design, administer, and analyze corporate dial plans and traffic routes for voice network structure.
Administer and monitor voice systems for performance and SLA attainment.
Provide support as needed to lower tier break/fix resolution and move/add/change/deactivation requests for all telecommunications systems.

Seven (7) years of experience as an SA in programs and contracts of similar scope, type, and complexity are required. Bachelor’s degree in Math, Science, Engineering, Statistics, Engineering Management or a related discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a Bachelor’s degree. Experience with the configuration and administration of common TDM and VOIP telephone call manager systems, such as the Nortel Meridian line of PBXs and Cisco Unified Call Manager. Large-scale implementation experience with Cisco Voice in a multi-cluster environment and data networking infrastructure. Working knowledge of H.323 and SIP. Familiar with Cisco UCS platforms, voice gateways, virtualization, and ESXi.. DoD 8570 IAM Level 2 required.

Requirements

Minimum Education and Experience:

· High school diploma or GED required.

· Minimum of 3-5 years of relevant IT experience.

· Must possess 8570 Certification; Security+ certification is highly preferred.

Technical Skills:

· Highly skilled in installing, repairing, and troubleshooting computer hardware and peripherals.

· Well-versed in installing Windows operating systems, software applications, antivirus programs, and security patches.

· Demonstrated ability to read, interpret, and apply information from technical manuals and schematics.

· Proficient in Microsoft Office Applications, including Word, Excel, PowerPoint, and Access.

· Demonstrated expertise with Microsoft Windows 7 and Windows 10 operating systems.

· Familiar with Active Directory security and policies, supporting secure and compliant IT environments.

· Proficient in supporting end-users remotely, providing timely and effective technical assistance.

Professional Competencies:

· Excellent analytical and problem-solving skills with the ability to manage complex technical issues independently.

· Outstanding verbal and written communication skills to effectively collaborate with team members and support end-users.

· Strong organizational skills, with the ability to manage time and priorities efficiently and work with minimal supervision.

Additional Requirements:

· Must be able to drive a company vehicle as part of job responsibilities.

· Ability to lift and move items weighing up to 50 lbs as required.

· Availability to work an 8-hour shift scheduled between the hours of 6:00 AM and 6:00 PM, as determined by management.

Active TS/SCI w/ FSP

T-Rex Overview

Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.