DNS Administrator - Network Engineer

• Full Time
• Application Closes 28 Nov 2025
• District of Columbia - Washington
• Computer Software Engineer, Systems Software

Job Summary:

#CJ

We are seeking a skilled DNS Administrator/Engineer with hands-on experience in lnfoblox DDI (DNS, DHCP, IPAM) solutions to support enterprise-level network infrastructure The ideal candidate will be responsible for the design, implementation, and maintenance of DNS services in a secure, high-availability environment. This role requires an active Secret clearance at a minimum, Top Secret preferred and experience working in classified or sens1t1ve environments.

Key Responsibilities:

• Administer and maintain DNS/DHCP/IPAM infrastructure using lnfoblox Grid Manager.
• Configure and troubleshoot DNS zones, records, and DHCP scopes.
• Monitor DNS performance and security, including DNSSEC and RPZ (Response Policy Zones) 
• Implement DNS redundancy, failover, and load balancing strategies.
• Collaborate with network, cybersecurity, and systems teams to ensure secure and reliable name resolution services
• Maintain documentation of DNS architecture, configurations, and change management
• Support incident response and root cause analysis for DNS-related issues.
• Ensure compliance with federal security-standards (e.g., NIST, DISASTIGs)
• Participate in audits and vulnerability assessments related to DNS infrastructure

 
Required Qualifications:

• Active Secret or Top Secret clearance (SCI eligibility preferred).
• 3+ years of experience in DNS administration, including lnfoblox DDI. 
• Strong understanding of DNS protocols (BIND, DNSSEC, Anycast, etc.). 
• Experience with IP address management (IPAM) and DHCP configuration. 
• Familiarity with network protocols (TCP/IP, 1Pv4/1Pv6, VLANs).
• Experience in secure environments (DoD, IC, or federal agencies). 
• Proficiency with Linux/Unix and Windows Server environments. 
• Strong documentation and communication skills. 

Preferred Qualifications:

• lnfoblox Certified Network Administrator (INCNA) or higher. 
• Experience with automation tools (e.g, Ansible, Python scripting)
• Familiarity with cloud-based DNS services (e.g., AWS Route 53, Azure DNS)
• Knowledge of cybersecurity frameworks and DNS threat mitigation.