Senior Systems Engineer - Enterprise Protected Domain Name Service

General Dynamics Information Technology; Sierra Vista (AZ); On-site; USD 88,130 - 108,100; Full time

Job summary

A leading enterprise IT company is seeking a Senior Systems Engineer to enhance the operation of their systems, focusing on cybersecurity and DNS management. Key responsibilities include system security, providing technical support for projects, and ensuring compliance with RMF activities. Ideal candidates will possess a Bachelor's degree in a related field, 5+ years of experience, and have an active Secret clearance. This position offers a salary range of $88,130 to $108,100 and requires onsite work in Sierra Vista, AZ.

Qualifications

• 5+ years of related experience.
• Active Secret clearance required, with ability to obtain Top Secret/SCI clearance.
• DoD 8570 IAT Level III Certification.

Responsibilities

• Ensure the security of information systems assets.
• Provide planning, design, and operational support for Army DNS systems.
• Deliver technical and logistical oversight for the EP-DNS project.

Skills

System Cybersecurity Management

TCP/IP schemes auditing

Advanced troubleshooting

PowerShell scripting

Infoblox DDI configuration

Configuration management

Education

Bachelor’s Degree in a related field

Tools

VMware

Hyper-V

Microsoft Visio

Oracle database servers

Job description

Senior Systems Engineer

Advance how our customers operate while you advance your career. Join GDIT and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful.

Job Responsibilities

• Lead/Manage/Support by performing all procedures necessary to ensure the security of information systems assets and to protect systems from intentional or inadvertent access or destruction.
• Collaborate with your peers to provide planning, design, development, engineering, integration, and technical and operational support to the ADCNOMS project and Army DNS systems.
• Drive success by delivering comprehensive technical, logistical, programmatic, accreditation, configuration, maintenance, and operational oversight for EP‑DNS, including scheduling, testing, integration, validation, documentation updates, and service reporting.
• Ensure the integrity and accuracy of system configurations by maintaining complete and current configuration management records.
• Provide Tier III support for EP‑DNS and DNS‑related infrastructure, performing advanced troubleshooting and service restoration as needed.
• Conduct cybersecurity analysis and support RMF compliance activities, including actions required for IAVA‑related findings.
• Coordinate, review, and maintain system documentation and provide clear guidance on the use and administration of EP‑DNS capabilities for personnel at all levels.
• Utilize your expertise across Unclassified and Classified networks, including DNSSEC signing and validation, Infoblox DDI configuration, grid management, and IPAM workflows.
• Demonstrate strong ability in auditing and troubleshooting ISC BIND, researching IAVM/IAVA vulnerabilities, and developing shell scripts to automate data‑gathering tasks in laboratory environments.
• Install and configure test‑environment components such as Solaris‑based DNS servers, Oracle database servers, Infoblox and SafeNet appliances, and JRE environments. Provide Tier III DNS support, performing advanced troubleshooting, root cause analysis, and validation of mission‑system changes.
• Support operational oversight, service reporting, and thorough documentation within enterprise ticketing systems and audit logs.
• Demonstrate familiarity with auditing large‑scale TCP/IP schemes and experience with Hyper‑V, VMware, meta‑database environments, PowerShell scripting, the Microsoft Office suite, and Microsoft Visio.

Qualifications

• Bachelor’s Degree in a related field (an additional 4 years of experience may be substituted).
• Active Secret clearance required; must be able to obtain Top Secret/SCI clearance after hire.
• 5+ years of related experience.
• DoW 8570 IAT Level III Certification and Computing Environment Certification.
• Experience in System Cybersecurity Management, RMF control implementation, and compliance validation.
• Experience applying mitigation actions from security findings and maintaining configuration baselines across EP‑DNS lab and production systems.
• Demonstrated ability to maintain accurate and current system documentation, diagrams, SOPs, and configuration records.
• Ability to support full‑time onsite work schedule.

Compensation and Work Details

Salary range: $88,130 – $108,100. Scheduled weekly hours: 40. Travel required: less than 10%. Telecommuting options: Onsite. Work location: USA AZ Fort Huachuca.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans