Infoblox Engineer - TS/SCI with Polygraph

General Dynamics Information Technology; Colorado Springs (CO); On-site; USD 140,000 - 190,000; Full time

Job summary

General Dynamics Information Technology is seeking a Senior Principal Infoblox Systems Engineer to support government activities in Colorado Springs, CO. You will manage DNS/DHCP/IPAM, DNS security, and DDI platforms in a large enterprise environment.

You will collaborate with government leads and vendors, document root causes, and implement remediation plans while ensuring system reliability, scalability, and performance. Strong communication skills are essential for cross‑functional teamwork.

Qualifications

• Active TS/SCI clearance with Polygraph.
• DoD 8570 IAT Level II requirements (e.g. Security+ CE, SSCP, GSEC, GICSP,CySA+, etc.).
• CDCA certified (Core DDI Config and Admin).
• 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

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
• Helpingidentify 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

Skills

DNS

DHCP

IPAM

BIND

NTP

Python

APIs

Communication

Collaboration

Education

Bachelor’s degree in IT-related field

Tools

CDCA certified

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 andmaintained
• Helpingidentifyand 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

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