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Infoblox Engineer - TS​/SCI Polygraph

Job in Gaithersburg, Montgomery County, Maryland, 20883, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2026-09-25
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 157250 - 212750 USD Yearly USD 157250.00 212750.00 YEAR
Job Description & How to Apply Below
Position: Infoblox Engineer - TS/SCI with Polygraph

Job Qualifications

Complex Systems, Systems Design, Systems Management

Job Description

Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Top Secret SCI + Polygraph

Clearance Level Must Be Able To Obtain:
Top Secret SCI + Polygraph

Public Trust/Other

Required:

None

Job Family: IT Infrastructure and Operations

Skills:

Job Qualifications:

Complex Systems, Systems Design, Systems Management

Certifications:

Security+ CE
- CompTIA
- CompTIA

Experience:

15 + years of related experience

US Citizenship

Required:

Yes

Job Description:

SYSTEMS ENGINEER SR PRINCIPAL

GDIT is your place. Make it your own by bringing your ideas and unique perspective to our culture. By owning your opportunity at GDIT, you are helping us ensure today is safe and tomorrow is smarter. Our work depends on an Infoblox Systems Engineer joining our team to support Government activities in Annapolis Junction, MD, Sterling, VA, or Colorado Springs, CO.

At GDIT, we foster a people-focused and customer-centric environment in delivering Network Engineering Services. As an Infoblox Systems Engineer supporting the Government, you will be trusted to provide Enterprise Infoblox DDI and related services to the Government Agency’s internal/external partners and clients with a focus on stability and performance.

In This Role, a Typical Day May Include
  • Investigating and diagnosing incidents and problems relating to DDI (Infoblox DNS, DHCP, IPAM) and related services
  • Ensuring the platforms and services are managed and maintained
  • Helping identify and manage risks within the DDI platform
  • Working with the Government lead and other service areas’ Architecture, Engineering & Operations leads and technical specialists, as well as professional services staff from vendors to implement the plan to deliver a strategic DDI platform and migrate all in-scope services from existing platforms
  • Ensuring that system improvements and changes are implemented and monitoring effects of modifications
  • Defining the capacity and performance standards, metrics and thresholds and helping build the instrumentation to effectively manage the environment
WHAT YOU’LL NEED
  • Active TS/SCI clearance with Polygraph
  • Meet DoD 8570 IAT Level II requirements (e.g. Security+ CE, SSCP, GSEC, GICSP, CySA+, etc.)
  • Core DDI Config and Admin (CDCA) certified
  • Bachelor’s degree in an IT-related field, or 12+ years of relevant IT experience in lieu of a degree
  • Extensive recent experience configuring and managing DNS in a large enterprise.
  • Strong knowledge of DNS, DHCP, IPAM, BIND, and NTP
  • Understanding of broader technology domains such as storage, virtualization, networking, and data center operations
  • Proven ability to troubleshoot complex cross-system issues, document root cause, and develop remediations
  • Experience with Python and APIs
  • Self-driven, able to manage multiple tasks with minimal supervision
  • Strong collaboration skills and ability to work across diverse technical teams
  • Excellent verbal and written communication skills

#GDITCareers

#WeAreGDIT

#

#

#JET

The likely salary range for this position is $157,250 - $212,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours

40

Travel Required

None

Telecommuting Options

Onsite

Work Location

USA MD Annapolis Junction

Additional Work Locations

USA VA Sterling

Total Rewards At GDIT

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life…

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