---
title: 'Voice Systems Administrator at T-Rex Solutions'
canonical: 'https://feeny.ai/job/voice-systems-administrator-t-rex-solutions-columbia-77vpnj5qp9ez'
type: 'job'
last_seen: '2026-11-06'
---

# Voice Systems Administrator at T-Rex Solutions

- **Company:** T-Rex Solutions
- **Location:** Columbia, MD
- **Posted:** 2026-11-05
- **Last confirmed live:** 2026-11-06
- **Apply:** https://www.trexsolutionsllc.com/current-opportunities-at-trex/?gh_jid=8932551002

## Job description

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.

T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.

T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.

In compliance with pay transparency guidelines, the annual base salary range for this position is $80,000-$100,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as market and business considerations when extending an offer.

T-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits.

## About T-Rex Solutions

## Company Overview
- **One-liner**: T-Rex Solutions is a leading IT solutions provider that helps U.S. federal agencies modernize, protect, and scale critical systems through cloud adoption, cybersecurity, AI, and agile transformation.
- **Entity Type**: Private (Privately Held)
- **Headquarters**: Bethesda, Maryland, United States
- **Founded**: 1999
- **Founders**: Trevor (founder, Chairman of the Board; surname not publicly listed)

## Core Business
- Primary industry: IT Services and IT Consulting, specializing in Federal Government IT Modernization
- Target customers: U.S. federal agencies (B2G)
- Mission: “Relentlessly drive innovation to develop and integrate engineering solutions and protect our government clients’ mission critical operations.”
- Vision: “Be the preferred, trusted provider of innovative IT solutions for government clients who require secure and scalable solutions to protect and improve the lives of citizens.”

## Products & Services
- **Cloud Adoption and Infrastructure Optimization**: Migrating and optimizing federal systems on AWS, Azure, and hybrid environments. T-Rex is an **AWS Advanced Tier Services Partner**.
- **Cybersecurity**: Protecting mission-critical systems on the largest government projects; includes threat detection, zero-trust architecture, and compliance.
- **AI and Cognitive Data Solutions**: Delivering AI/ML and intelligent automation for decision-making and operational efficiency.
- **Agile Transformation**: Implementing large-scale IT modernization with aggressive schedules and advanced security.
- **Health IT**: Electronic Health Records (EHR) modernization and related health technology solutions.
- **Customer Experience**: End-to-end client engagement from contract award to close.
- **Data Engineering and Analytics**: Helping clients leverage big data for mission-critical objectives.

## Market Standing
- **Valuation**: Not publicly disclosed (private company)
- **Key Metric**: Annual Revenue: **$259.4 million** (as of most recent data) [LinkedIn]
- **Total Funding**: Not applicable (bootstrapped/growth from operations; no external funding rounds mentioned)
- **Headcount**: 148 employees (year-over-year decline of ~12.9% from 178) [LinkedIn]
- **Notable Clients/Partners**: U.S. Census Bureau (moved 2020 Census online for first time), U.S. Department of Education ($52M contract win in 2024), U.S. Department of Veterans Affairs, and other federal agencies.
- **Notable Investors/Partners**: AWS (Advanced Tier Partner), ISO certifications (9001, 20000-1, 27001, CMMI-DEV/SVC Level 3)
- **Growth Signals**: 
  - Won **$52M Department of Education contract** (May 2024) [WashingtonExec]
  - Recognized as **2025 Top Remote Workplace** by Remote Work Top Workplaces and **2025 HIRE Vets Platinum Medallion Award** from U.S. Department of Labor.
  - Active job postings up **119% year-over-year** (46 open positions as of mid-2025) [LinkedIn]
  - Acquired **Cyber Cloud Technologies** in August 2023.

## Competitive Advantages
- **Mid-tier agility with enterprise maturity**: T-Rex positions itself as combining the speed and responsiveness of a small business with the strength and certifications of a large prime contractor.
- **Deep federal expertise**: Proven track record of running some of the world’s largest critical systems (e.g., 2020 Census, $52M DoE contract).
- **Certified quality**: Holds ISO 9001, ISO/IEC 20000-1, ISO/IEC 27001, CMMI-DEV Level 3, CMMI-SVC Level 3 – third-party validation of quality and security.
- **AWS Advanced Tier Partner status**: Demonstrates deep cloud expertise and preferred access to AWS resources.
- **Veteran-friendly**: Platinum HIRE Vets Medallion Award, strong commitment to military hiring.

## Strategic Focus
- Continue expanding federal civilian and defense contracts (e.g., recent VP of Defense Programs hire).
- Invest in emerging technologies: AI/ML, cognitive data solutions, and automation to drive government efficiency.
- Grow talent base with a focus on remote/hybrid work; active hiring surge (+119% YoY job postings).
- Deepen AWS partnership and explore multi-cloud offerings.

## Why Work Here
- **Culture**: Employee rating **4.3/5.0** on LinkedIn (based on 106 reviews), with strong scores for Work-Life (4.6), Culture (4.4), and Compensation (4.3). Career growth rated 3.8.
- **Remote/Hybrid**: Recognized as a **2025 Top Remote Workplace** – strong remote-friendly culture.
- **Perks & Values**: Equal Opportunity Employer, E-Verify participant, HIRE Vets medallion winner; emphasis on transparency, integrity, and professional development.
- **Engineering Culture**: Focus on innovation, challenging federal projects, and opportunities to work on large-scale systems with cybersecurity and AI.
- **Recent Growth**: 46 active job openings across software engineering, systems architecture, cybersecurity, cloud, and program management.

## Sources
1. [trexsolutionsllc.com](https://www.trexsolutionsllc.com/) – Company overview, AWS Advanced Tier, HIRE Vets, Top Remote Workplace
2. [trexsolutionsllc.com/who-we-are](https://www.trexsolutionsllc.com/who-we-are/) – Mission, vision, leadership
3. [linkedin.com/company/trex-solutions](https://www.linkedin.com/company/trex-solutions) – Revenue, headcount, employee growth, ratings, open positions
4. [trexsolutionsllc.com/join-our-team](https://www.trexsolutionsllc.com/join-our-team/) – Careers page, departments
5. [trexsolutionsllc.com/current-opportunities-at-trex](https://www.trexsolutionsllc.com/current-opportunities-at-trex/) – Job scam warning, official careers info
6. [WashingtonExec: T-Rex Solutions Wins $52M Education Department Contract](https://washingtonExec.com) (cited in LinkedIn news) – Recent contract win
7. [WashingtonExec: CEO Seth Moore Celebrates 25 Years](https://washingtonExec.com) (cited in LinkedIn news) – 25th anniversary, growth strategy

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