Infoblox Systems Engineer - TS/SCI with Polygraph

General Dynamics - IT; Annapolis (MD); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

401K with company match

Comprehensive health and wellness

Internal mobility team

Paid education & certifications

Cutting-edge technology access

Paid vacation & holidays

Job summary

General Dynamics - IT (GDIT) seeks an Infoblox Systems Engineer to support Government networks from Annapolis Junction, MD, Sterling, VA, or Colorado Springs, CO. You will own DDI infrastructure, troubleshoot complex cross-system issues, and drive stability and performance across enterprise DNS/DHCP/IPAM services.

Applicants must hold TS/SCI with Polygraph and DoD 8570 IAT Level II certifications; experience with Infoblox DDI and Python/APIs is essential.

Qualifications

• Active TS/SCI clearance with Polygraph.
• DoD 8570 IAT Level II certifications required (e.g. Security+ CE, SSCP, GSEC, GICSP, CySA+).
• Extensive experience configuring and managing DNS in a large enterprise.
• Strong knowledge of DNS, DHCP, IPAM, BIND, and NTP.

Responsibilities

• 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 Government lead and other Architecture, Engineering & Operations leads and vendors to implement the plan for a strategic DDI platform.
• Ensuring that system improvements and changes are implemented and monitoring effects of modifications.
• Defining capacity and performance standards, metrics and thresholds and building instrumentation to manage the environment.

Skills

DNS

DHCP

IPAM

BIND

NTP

Python

APIs

Infoblox DDI

Collaboration

Communication

Education

Bachelor’s degree in IT-related field

12+ years IT experience in lieu of degree

Tools

CDCA

DoD 8570 IAT II

Python APIs

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.

HOW A INFOBLOX SYSTEMS ENGINEER WILL MAKE AN IMPACT:

• 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 TO SUCCEED:

• 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

GDIT IS YOUR PLACE:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you build your skills and 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 10 company-paid holidays

#GDITCareers

#WeAreGDIT

#MD_Alumni2026

#VA_Alumni2026

#JET

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