Senior DNS & Infrastructure Engineer; SME

Senior DNS & Infrastructure Engineer

Herndon, VA Top Secret/SCI Polygraph Unspecified Career Level not specified $149,603 - $254,317

BAE Systems, a top-ten prime contractor to the U.S. Department of Defense, enables the U.S. government to transform data into intelligence and provides engineering, integration and sustainment support for critical military platforms and systems. Intelligence & Security provides services and products to the Department of Defense, the government, federal law enforcement officials, and troops deployed around the world. At BAE Systems, we promote a strong, collaborative culture and provide our employees with the tools, skills and training they need to succeed.

We are all about trust, camaraderie, and a shared ambition to lead the world in defense technologies and national security services. We offer flexible work environment to support the balance in your life and keep you performing at your best. Be a part of a company that is part of the community; driven to improve our future and protect our freedom.

Seeking a Senior DNS & Infrastructure Engineer to join our team. In this position you will play a critical role in designing, securing, and evolving the enterprise DNS and Windows infrastructure across on-premises, hybrid, and multi-cloud environments. Serving as the Subject Matter Expert (SME) for enterprise DNS architecture and Windows-based identity services, you will provide technical leadership, architectural direction, and operational excellence supporting large-scale, mission-critical environments.

In this role, you will lead the design, implementation, security, and lifecycle management of enterprise DNS, DNS Anycast, Active Directory-integrated DNS, and related infrastructure services. You will drive modernization, resiliency, automation, and zero trust initiatives while partnering closely with senior stakeholders across operations, architecture, engineering, networking, and security teams.

The ideal candidate will possess deep expertise in enterprise DNS architecture, cloud-integrated networking, and hybrid identity solutions, including experience with cloud DNS platforms in AWS and Azure. Success in this role requires proven experience delivering SME-level troubleshooting, architecting highly available DNS infrastructures, implementing DNS resiliency and Anycast solutions, and leading enterprise-scale modernization initiatives in fast-paced, high-availability environments.

Required Education, Experience, & Skills

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent professional experience
• 16+ years of progressively responsible experience in enterprise infrastructure engineering within large-scale environments
• SME-level experience designing and operating enterprise DNS infrastructures in mission-critical environments
• Extensive experience architecting and supporting:
• Enterprise DNS platforms
• DNS Anycast environments
• Hybrid and multi-cloud integrations
• On-premises and cloud-integrated infrastructure
• Disconnected and air-gapped systems
• Hands-on experience administering and architecting:
• Enterprise DNS services
• Strong experience with cloud providers and cloud-native networking services, including:
• AWS (Route 53, VPC networking, hybrid DNS integration)
• Microsoft Azure (Azure DNS, virtual networking, hybrid connectivity)
• Experience designing and supporting highly available (HA) DNS and infrastructure solutions utilizing:
• DNS Anycast
• Load balancing
• Disaster recovery and COOP architectures
• Strong understanding of DNS protocols, name resolution processes, and DNS-related networking concepts
• Proven experience performing security assessments and implementing remediations for critical IT systems
• Demonstrated experience architecting and operating hybrid and multi-cloud environments integrating identity, networking, DNS, and security services
• Expert-level troubleshooting and root-cause analysis across DNS, Windows infrastructure, identity services, and supporting platforms
• Strong proficiency with Windows Server
• Deep understanding of Windows authentication, authorization, and identity services
• Strong working knowledge of:
• Routing and switching
• Firewalls
• Load balancing
• Network segmentation
• Enterprise network design principles
• Strong knowledge of enterprise security principles, zero trust architectures, and secure system design
• Experience developing automation and infrastructure-as-code solutions with an emphasis on repeatability and standardization
• Strong scripting and automation experience using Power Shell and related automation frameworks
• Excellent documentation, technical writing, communication, and stakeholder engagement skills
• Ability to operate effectively in fast-paced, mission-critical, high-availability environments

Preferred Education, Experience, & Skills

• Master's degree in Computer Science, Information Technology, Cybersecurity, or related field
• Experience designing enterprise-scale DNS architectures for globally distributed environments
• Experience implementing or…