TSS Senior Network Security Engineer (DNS)

Clearance Level
Cyber Engineering
Remote, Based in Louisiana

REQ#: RQ133536

Travel Required: None
Public Trust: BI Full 6C (T4)
Requisition Type: Regular

Own your career as a Cyber Engineer at GDIT. Here, you’ll have the opportunity to build strong lines of cyber defense using cutting-edge technologies. Your work in cyber security at GDIT will have an impact on securing our clients’ missions and ensuring we anticipate the threats of tomorrow.

Our work depends on Level 3 Domain Name System Engineers to join our team to support National Institutes of Health, Center for Information Technology (CIT) activities at 6555 Rock Spring Drive, Bethesda, MD. As a DNS Engineer supporting CIT, you will be trusted to lead projects, implement, and support DNS initiatives for the Network Services program in CIT. 

General Duties

  • Architecture and Administration of DNS technologies including but not limited InfoBlox, BIND, and other DNS system.
  • Act as an escalation point for DNS and DNS secure related issues.
  • Maintain a relationship with key Third-Party vendors such as software/hardware vendors to provide support to the infrastructure as needed.
  • Create and maintain network diagrams and document activities and as required for NIH
  • Provide Subject Matter Expertise for all networking technologies with heavy participation in key decision-making processes for the acquisition of current/new technologies into the NIH environment.
  • Meet with GDIT management and the Federal customer to review design and implementation efforts as requested.
  • Work closely with other IT functional teams to ensure cohesive support and strategies across the IT organization
  • Execute project plan as authorized 
  • Ability to multitask in a fast-paced IT environment.
  • 24 hours availability for weekly On-Call rotation with DNS Team


  • Determine Level of Effort (LOE) for service/solution requests
  • Produce daily/weekly status reports
  • Develop change management plans
  • Attend daily/weekly meetings
  • Provide input to the risk register
  • Support projects


  • BS degree in Computer Science, Information Systems or equivalent.
  • Must have a minimum of 10+ years of experience implementing and maintaining DNS.
  • Must have minimum 10 years’ experience in a Network Engineering role.
  • Experience with network infrastructure in enterprise datacenter solutions.
  • Experience with running mid to large scale implementations of Network Access Control technologies.
  • Excellent written and verbal communication skills.
  • Ability to explain and elaborate on technical details.
  • Ability to assist in troubleshooting and problem solving a wide variety of client/user issues.
  • Must possess active NIH Clearance / Public Trust.


  • DNS InfoBlox
  • Familiar with other OS: Windows, Linux, Unix.
  • Experience with ServiceNow is an asset
  • Ability to self-direct, take initiative
  • Ability to adapt to frequent changes in priorities and task assignments.
  • Ability to effectively communicate business risks and requirements associated with implementations


  • Full-flex work week to own your priorities at work and at home
  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays

About Our Work

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.

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.

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.