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Senior Infrastructure Role

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Robert Half

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Location:
United States , McLean

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Responsibility:

  • Lead the design, architecture, and full implementation of the new Cisco ACI fabric, facilitating the enterprise-wide migration from legacy NX-OS systems
  • Direct and execute the strategy for transitioning from NX-OS to Cisco ACI, including tenant setup, EPG development, policy creation, and fabric discovery
  • Configure and manage the Cisco Nexus Dashboard to achieve centralized visibility, operations management, and policy orchestration across the data center network
  • Supervise the SAN environment, ensuring optimal storage connectivity, zoning, and fabric health during and after the ACI migration
  • Create and maintain comprehensive migration runbooks, cutover roadmaps, and rollback procedures to guarantee operational continuity for mission-critical workloads
  • Work closely with cloud architects and application teams to enable effective integration between the upgraded data center fabric and AWS cloud platforms
  • Support and help lead the enterprise Wireless Refresh project from initial design through deployment, establishing a robust, high-performing wireless infrastructure
  • Design and implement the updated wireless network with advanced Wireless Intrusion Prevention and Detection (WIPS/WIDS) to enhance security monitoring across all locations
  • Deploy and configure new Wireless LAN Controllers (WLCs) and Access Points (APs) for reliable coverage, capacity, and performance in geographically distributed areas
  • Utilize Cisco DNA Center services for optimization, policy enforcement, AI-driven analytics, and complete lifecycle management of the wireless network
  • Conduct site assessments, RF planning, and post-installation reviews to ensure wireless standards support operational requirements
  • Assist in developing wireless security configurations and policies following DISA STIGs, RMF, and DoD wireless security mandates
  • Architect, implement, and maintain scalable AWS cloud environments—including compute, storage, networking, and identity management—supporting key applications
  • Ensure infrastructure security by applying controls aligned with DISA STIGs, RMF, NIST 800-53, and DoD cloud requirements
  • Automate cloud infrastructure deployment and configuration with Infrastructure as Code tools such as Terraform, AWS CloudFormation, or comparable
  • Monitor health, performance, and security using AWS-native tools (CloudWatch, AWS Config, Security Hub) and third-party SIEM integrations
  • Support Authority to Operate (ATO) efforts, including generating security documentation, implementing controls, and aiding in assessments
  • Lead incident response, perform root cause investigations, and shape continuity plans for mission-essential systems

Requirements:

  • At least 12 years of progressive experience in enterprise infrastructure engineering, with strong senior-level experience in data center and wireless network architecture
  • CompTIA Security+ CE or equivalent (DoD 8570/8140 IAT II)
  • Cisco Certified Network Professional – Enterprise Wireless (CCNP Enterprise)
  • Practical experience with Cisco ACI: fabric design, APIC management, tenant/EPG configuration, and NX-OS migration
  • Strong familiarity with Cisco Nexus platforms and NX-OS, including multi-tier data center switches and SAN management
  • Advanced knowledge of enterprise wireless—including WLC/AP deployment, RF planning, WIPS/WIDS executions, and Cisco DNA Center operations
  • Experience in AWS cloud services: EC2, VPC, IAM, S3, RDS, CloudWatch, AWS Config, Security Hub
  • Proficient in Infrastructure as Code through Terraform, AWS CloudFormation, or Ansible
  • Comprehensive understanding of DISA STIGs, RMF, NIST 800-53, and federal compliance frameworks
  • Experience supporting ATO efforts and working collaboratively with ISSOs, security assessors, and compliance personnel
  • Ability to steer complex, concurrent modernization projects in mission-critical, compliance-focused environments
What we offer:
  • medical
  • vision
  • dental
  • life and disability insurance
  • eligible to enroll in our company 401(k) plan

Additional Information:

Job Posted:
April 11, 2026

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