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T-Rex Solutions

Federal IT modernization and cybersecurity services

Telephony System Administrator

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeColumbia, MD, USAIn-person

About the Job

Requirements

  • Seven years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity are required.
  • A bachelor's degree in Mathematics, Science, Engineering, Statistics, Engineering Management, or a related discipline from an accredited college or university is required; five additional years of Systems Administrator experience may be substituted for the degree.
  • A high school diploma or GED is required.
  • A minimum of 3–5 years of relevant IT experience is required.
  • A DoD 8570 IAM Level 2 certification is required; Security+ certification is highly preferred.
  • Experience configuring and administering common TDM and VoIP telephone call-manager systems, such as Nortel Meridian PBXs and Cisco Unified Call Manager, is required.
  • Large-scale implementation experience with Cisco Voice in a multi-cluster environment and data networking infrastructure is required.
  • Working knowledge of H.323 and SIP is required.
  • Familiarity with Cisco UCS platforms, voice gateways, virtualization, and ESXi is required.
  • Active TS/SCI with FSP is required.
  • The ability to drive a company vehicle is required.
  • The ability to lift and move items weighing up to 50 pounds is required.
  • Availability to work an 8-hour shift scheduled between 6:00 a.m. and 6:00 p.m., as determined by management, is required.
  • Ability to install, repair, and troubleshoot computer hardware and peripherals is required.
  • Ability to install Windows operating systems, software applications, antivirus programs, and security patches is required.
  • Ability to read, interpret, and apply information from technical manuals and schematics is required.
  • Proficiency in Microsoft Office applications, including Word, Excel, PowerPoint, and Access, is required.
  • Expertise with Microsoft Windows 7 and Windows 10 operating systems is required.
  • Familiarity with Active Directory security and policies is required.
  • Ability to support end users remotely is required.
  • Analytical and problem-solving skills to independently manage complex technical issues are required.
  • Verbal and written communication skills for collaborating with team members and supporting end users are required.
  • Organizational skills and the ability to manage time and priorities and work with minimal supervision are required.

Responsibilities

  • 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 service-level agreement attainment.
  • Provide support as needed for lower-tier break/fix resolution and move, add, change, and deactivation requests for all telecommunications systems.

Desired Qualifications

  • Security+ certification is highly preferred.

About the Company

T-Rex Solutions

Federal IT modernization and cybersecurity services

T-Rex Solutions provides IT modernization and cybersecurity services to U.S. federal agencies, focusing on agile transformation, cloud adoption, and data engineering. Its work spans designing, building, integrating, and operating large-scale government systems, including moving the 2020 Census to the cloud with AWS to achieve security, scalability, and reliability. Differentiators include a longstanding government contractor track record since 2003, a proven end-to-end lifecycle approach for federal IT modernization, and a deep specialization in cloud and infrastructure services for federal agencies. The company aims to help federal agencies modernize their IT landscape, improve security, and adopt cloud-based, scalable, and data-driven operations.

Company size
201-500
Company stage
Not listed
Total funding
Not listed
Headquarters
Greenbelt, MD
Founded
1999

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