Infoblox Engineer - TS/SCI with Polygraph

General Dynamics Information Technology, Inc.; Maryland; On-site; USD 157,000 - 213,000; Full time

Job summary

General Dynamics Information Technology, Inc. is seeking an Infoblox Systems Engineer to support government DNS services across Annapolis Junction, MD, Sterling, VA, and Colorado Springs, CO. The role emphasizes stability, performance, and collaboration with government and vendor teams.

You will diagnose DNS/DHCP/IPAM issues, manage DDI platforms, and contribute to strategic migration efforts while meeting DoD security requirements and engineering standards.

Qualifications

• Requires Active TS/SCI clearance with Polygraph
• DoD 8570 IAT Level II certifications (Security+ CE, SSCP, etc.)
• Bachelor's degree or 12+ years IT experience in lieu of degree
• Extensive DNS/DNS-related service experience in large enterprise environments

Responsibilities

• Investigate and diagnose incidents related to DDI (Infoblox DNS/DHCP/IPAM) and related services
• Ensure platforms and services are managed and maintained
• Define capacity and performance standards and instrumentation for the environment
• Collaborate with Government leads and vendor teams to implement the plan for a strategic DDI platform
• Document root causes and develop remediations

Skills

Complex Systems

Systems Design

Systems Management

DNS

DHCP

IPAM

BIND

NTP

Python

Education

Bachelor's degree in IT-related field

Tools

CDCA

Infoblox DDI

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

Job Qualifications:

• Skills: 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 #MD_Alumni2026 #VA_Alumni2026 #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 balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Opportunity Owned From working with technologies like AI, cyber and cloud to careers in intelligence and health, we offer endless opportunities to apply your expertise to create a safer, smarter world.

For more information about GDIT's Privacy Policy, click here: Privacy Policy | GDIT