Senior Systems Engineer - Enterprise Protected Domain Name Service

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: BIND DNS Server, Domain Name System (DNS), Domain Name System (DNS) Security, Infoblox DNS, Scripting Certifications: Certified Information Systems Auditor (CISA) | Information Systems Audit and Control Association (ISACA) - Information Systems Audit and Control Association (ISACA), Certified Information Systems Security Professional (CISSP) | International Information System Security Certification Consortium (ISC2) - International Information System Security Certification Consortium (ISC2), Certified Network Professional Enterprise (CCNP) | Cisco - Cisco, CompTIA SecurityX CE | CompTIA - CompTIA Experience: 5 + years of related experience US Citizenship Required: Yes Job Description: Advance how our customers operate while you advance your career. Join GDIT as a Senior Systems Engineer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you. As a Senior Systems Engineer, the work you’ll do at GDIT will be impactful to the mission of the Army's Network Enterprise Technology Command. You will play a crucial role in providing Information Technology System Engineering, Capability Management, Tier III and Service Support Management, and Risk Management Framework support to employ Enterprise Protected Domain Name Services to specified Non-Classified Internet Protocol Router Network (NIPRNET), Secret Internet Protocol Router Network (SIPRNET), and Deployed Forces (DF) portion of the Department of War Information Network (DOWIN). Selected candidate will support operations onsite at our Fort Huachuca, AZ facility. MEANINGFUL WORK AND PERSONAL IMPACT: 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. WHAT YOU’LL NEED TO SUCCEED (Required): Bring your technology expertise and drive for innovation to GDIT. The Senior Systems Engineer must have: Education: Bachelor’s Degree. An additional 4 years of experience may be substituted in lieu of degree. Security Clearance: Active Secret required. In addition, selected candidate must be able to obtain a Top Secret/SCI clearance post hire. Experience: 5+ years of related experience. Certification: DoW 8570 IAT Level III Certification and Computing Environment Certification. Role Requirements: 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. GDIT IS YOUR PLACE: At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities. Support: An internal mobility team focused on helping you achieve your career goals. Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off. Flexibility: Full-flex work week to own your priorities at work and at home. Community: Award-winning culture of innovation and a military-friendly workplace 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. The likely salary range for this position is $88,130 - $108,100. 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: Less than 10% T elecommuting Options: Onsite Work Location: USA AZ Fort Huachuca Additional Work Locations: 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 consulting, technology 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 capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans