Senior Infoblox DDI Engineer

JCS Solutions is seeking a Senior Infoblox DDI Engineer to engineer, implement, migrate, and sustain enterprise DNS, DHCP, and IP Address Management (DDI) services supporting a large-scale Department of Defense network environment. This position provides hands‑on engineering leadership for Infoblox Grid infrastructure, DNS, DHCP, IPAM, migration activities, troubleshooting, testing, and operational sustainment.

The successful candidate will possess deep expertise in enterprise DDI services and strong routing and switching knowledge to support service reachability, high availability, DHCP relay, segmentation, and enterprise connectivity. The role requires the ability to troubleshoot and resolve issues spanning DDI platforms, routing infrastructure, identity services, security controls, and enterprise applications.

This position supports migration initiatives, operational sustainment, automation opportunities, and modernization efforts across geographically distributed classified environments.

Location: Ft. Meade, MD
Clearance: Secret
Salary: $ - $
Certification: Active DoD 8140/8570 IAT Level II certification

• Join a premier technology firm specializing in innovative solutions.
• Be part of a collaborative, inclusive, and innovative work culture.
• Enjoy tremendous growth potential in a high‑performing team environment.
• A robust benefits package:
  • Health, dental, and vision insurance
  • Life insurance
  • Short‑and‑long term disability
  • Paid time off (PTO)
  • 401k retirement plan with employer match
  • Annual Professional Development Reimbursement Program
  • And more!

• Engineer, deploy, configure, and sustain Infoblox Grid infrastructure including Grid Masters, Grid Master Candidates, Grid Members, high‑availability pairs, and distributed appliances.
• Design and maintain enterprise DNS architecture including authoritative and recursive services, forward and reverse zones, delegation, conditional forwarding, DNSSEC, split-horizon views, and zone transfers.
• Engineer and maintain enterprise DHCP services including scope design, reservations, options, relay configuration, failover, redundancy, and lease management.
• Design and maintain IPAM architecture including network containers, address allocation, utilization reporting, extensible attributes, and enterprise‑wide data quality standards.
• Perform Infoblox upgrades, patching, capacity planning, backup and recovery, licensing, and lifecycle management.
• Integrate Infoblox with Active Directory, network access control platforms, identity services, automation tools, and provisioning workflows.
• Implement approved DNS security capabilities including query filtering, DNS logging, RPZs, and threat‑based protections.

• Engineer, configure, and support enterprise routing and switching infrastructure supporting DDI services.
• Support routing policies, VLAN architecture, DHCP relay, anycast service delivery, high availability, and service reachability.
• Troubleshoot BGP, OSPF, EIGRP, route redistribution, filtering, and routing convergence issues impacting DDI services.
• Perform installation, testing, configuration, modification, and servicing of network infrastructure equipment.
• Provide senior‑level troubleshooting for DNS resolution, DHCP assignment, and connectivity issues spanning multiple technology layers.

• Develop implementation plans, rollback procedures, validation criteria, test procedures, and change documentation.
• Execute DNS and DHCP migration activities, consolidations, namespace cleanup, and cutover operations.
• Apply configuration hardening, vulnerability remediation, and STIG compliance requirements.
• Maintain architecture diagrams, migration…