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System Engineer, TS/SCI with Polygraph

General Dynamics Information Technology

This is a Contract position in Chantilly, VA posted January 25, 2023.

Type of Requisition:


Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph



Public Trust/Other Required:

Job Family:

Systems Engineering

Job Description:

We are seeking highly motivated engineers with a thirst for learning, in support a geographically dispersed, state of the art systems supporting our customer’s enterprise Mission Critical Unified Communications services. Candidates with proven depth creating solutions with Cisco Unified Communications Manager, Compunetix Mission Voice Platform, Cisco/Juniper routing/switching platforms and related technologies will be positioned for success in our organization. The selected candidate will design, build, deploy, and administer large scale Mission Critical Voice networks.

The engineer will provide support to multiple globally dispersed WAN connected sites. Engineers will be responsible for supporting their solutions throughout the IT project lifecycle, to include refining requirements, creating design documentation, creating installation instructions and deployment plans, and providing O&M support. Project assignments will vary based on skill level, and may include engineering geographically dispersed services, integrating services into public, private and hybrid cloud environments, and hardening the solutions to address security and SCAP compliance.


  • Designs and defines system architecture for Compunetix Mission Voice Platform (MVP). To include cross site NETS and IP Spans
  • Participate in launch ICE and dress rehearsals.
  • Provision instruments, support call scheduling, end-point troubleshooting, real-time launch console support, and end-user training
  • Tier 3 Network support of Cisco and Juniper equipment in support of Mission Critical Voice CAN/LAN/WAN
  • Develop and document Mission Critical Voice SOPs for engineers and Knowledge Base articles for end-users
  • Work with industry providers from other Government agencies and commercial providers to ensure seamless call performance
  • Reviews completion and implementation of system additions and/or enhancements and makes recommendations to management and/or clients

Required Skills:

  • Experience with Cisco Unified Call Manager
  • Experience with VMware ESXI platform
  • Experience with designing QoS policies over WAN
  • Experience with engineering Compunetix Mission Voice Platform
  • Experience with maintaining Compunetix Mission Voice Platform
  • Experience with Cisco ISO
  • Experience with Juniper JUNOS
  • Experience with PBX is desired
  • Experience building/managing servers in the AWS (Amazon Web Services) environment is desired
  • Experience with managing work tasks via tools such as JIRA and ServiceNow
  • System configuration based on security guidelines such as DISA STIGs
  • CompTIA Security+ or similar for IAT Level II DoD 8570 certification
  • Bachelor’s degree or equivalent combination of education and experience.
  • 10 years of relevant experience.

Scheduled Weekly Hours:


Travel Required:


Telecommuting Options:


Work Location:

USA VA Chantilly

Additional Work Locations:

COVID-19 Vaccination: GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.