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Job Title: Voice Transport Systems Engineer
Company Name: General Dynamics IT
Location: Arlington, VA
Position Type: Full Time
Post Date: 03/09/2026
Expire Date: 04/09/2026
Job Categories: Engineering, Information Technology
Job Description
Voice Transport Systems Engineer

Voice Transport Systems Engineer

Advance how our customers operate while you advance your career. Join GDIT as a Voice Transport Systems Engineer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT
As a Systems Engineer Principal, the work youll do at GDIT will be impactful to the mission of DISA J6- Enterprise Transport Management - Next Gen (DISA ETM - NG) program at the Pentagon in Arlington, VA.

Due to the nature of work this role entails, telecommuting is not allowed and will require the employee to report full-time onsite.

Responsibilities include but are not limited to:

  • Responsible for the health and maintenance of a large, complex networking infrastructure.

  • Providing network administration and operational support to more than 90000 network-attached telephone devices.

  • Provide comprehensive network administration, security enhancements and remediation, and troubleshooting of network devices such as routers, switches, and VoIP with a particular concentration on SIP.

  • Understanding of best practices pertaining to network security and may require the development, deployment, and integration of network security services.

  • Provides problem and incident resolution, including dealing with software and hardware vendor technical support

  • Deploy and maintain network hardware, peripherals, services, and settings in accordance with industry standards and project/operational requirements

  • Performs daily system monitoring; verifies the integrity and availability of networking hardware, services, systems, and key processes; reviews system and application logs

  • Documents and performs network upgrades and modifications during ASI windows

  • Provides on-call troubleshooting and issue resolution as required

  • Develops and maintains installation and configuration procedures

  • Partner with the information security personnel to assess potential exposure to vulnerabilities, identify mitigation plans, and ensure compliance with enterprise security baselines and standards

  • Acts as a liaison with other groups to provide information sharing pertaining to the needs of the diverse set of computer users supported by the client as a whole.

  • Develop scripts and other automation solutions to aid in the completion of migration and integration tasks.

  • Review problems to understand the root causes of issues and ensure proper fixes are implemented

  • Provides phone support to users during the time of peak demand as needed.

  • Inform management in a clear, concise, and timely manner of any customer or technical issues

  • Be responsive and decisive on adjusting architecture as customer requirements and technology evolves

  • Coordinate with on-site support personnel while troubleshooting

  • Use enterprise service management tools to initiate, respond, and track service requests

  • Create reports and analyze performance metrics

  • Adhere to change management processes and procedures

Required Qualifications:

  • Active Secret clearance

  • 8+ years of related experience

  • Bachelors Degree in a related field. Work experience considered in lieu of degree.

  • DoD 8570 IAT Level II Certification or higher

  • One or more of the following active network certifications:

    • Cisco Certified Network Administrator (CCNA)

    • Cisco Certified Network Professional (CCNP)

    • Juniper Network Certified Internet Associate (JNCIA-Junos)

    • Juniper Network Certified Internet Specialist (JNCIS-ENT)

    • Or Related Telephony Certification from Avaya, Nortel, AT&T, etc.

  • Broad understanding of network infrastructure topologies, security policies, firewalls, and the L2/L3 switch, SBC, and router infrastructure

  • Extensive experience troubleshooting, managing and monitoring the health of Cisco and Juniper routers and switches

  • In depth knowledge of TCP/IP protocols.

  • Experience deploying, managing, and troubleshooting network systems, switching, and routing protocol standards such as: TCP/IP, MPLS, OSPF, BGP, SDN, SIP, and802.1x.

  • Experience managing and troubleshooting DNS, DHCP, IPAM, and NTP in a large multi-site environment

  • Experience using network management and analysis tools such as SNMP probes, network taps, and traffic analyzers

  • Experience with Network Management & Performance platforms, such as NetScout, IBM NetCool, Solarwinds NMS products, NetBrain, Infovista

  • Experience building configurations using CLI

  • Experience with network security, including firewall, IDS/IPS, VPN, and vulnerability remediation

  • Experience creating & updating network topologies using Visio

  • Creating and documenting processes and creating work instructions

  • Experience creating scripts to automate routine administration tasks

  • Experience working directly with customers

  • Experience with supporting teleworkers and remote access technologies

  • Possess flexibility to operate in a highly dynamic environment while ensuring a high level of operational effectiveness

  • Excellent verbal skills and ability to communicate effectively with people who have varying degrees of technical expertise

Desired Qualifications:

  • Experience with DHCP deployment; Infoblox IP Address Management (IPAM) and DHCP preferred

  • Experience utilizing Remedy ITSM

  • Experience administering and troubleshooting server operating systems such as Linux, Windows, or UNIX

  • Experience managing Cisco Prime/Junos Space

  • Experience with LDAP/PKI preferred


GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.

  • Growth: AI-powered career tool that identifies career steps and learning opportunities

  • Support: An internal mobility team focused on helping you achieve your career goals

  • Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off

  • Community: Award-winning culture of innovation and a military-friendly workplace


OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and youll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

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Contact Information
Company Name: General Dynamics IT
Website:https://www.gdit.com/careers/job/8f22b9b4a/voice-transport-systems-engineer/?source=AutoAppend_HBCU
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