Jobs · Information Technology · Virginia

Network Engineer SME - Top Secret Clearance REQUIRED

i3, LLC · Chantilly, VA · 3 days ago
Information TechnologyFull-time

Key Responsibilities

  • Design and implement enterprise network architectures that support secure, mission-critical operations.
  • Lead zero-trust network design initiatives and cross-enclave interoperability solutions.
  • Optimize network performance, reliability, and security across complex, multi-enclave environments.
  • Establish and enforce network security architecture standards and governance processes.
  • Drive network modernization efforts aligned with enterprise strategy and zero-trust principles.
  • Ensure secure communications and connectivity across classified and highly regulated environments.
  • Provide technical leadership for network infrastructure planning and implementation.
  • Partner with security, architecture, and operations teams to maintain resilient network systems.

Required Skills

  • Extensive experience designing and supporting enterprise network environments.
  • Strong expertise in routing, switching, firewalls, VPNs, network security, and access control technologies.
  • Experience implementing zero-trust architectures and secure communications solutions.
  • Advanced troubleshooting and network performance analysis skills.
  • Experience supporting mission-critical, highly secure, or regulated environments.
  • Strong leadership, communication, and technical documentation skills.

Unique Skills / Technical Requirements

  • Air-gapped hybrid cloud and on-premises operational environments, including complex multi-enclave ecosystems
  • AWS GovCloud/SC2S/C2S and GCP cloud platforms
  • Nutanix host and cluster configuration, management with Prism Central, and NDFS configuration/management
  • Cisco switching, routing, firewalling, and site-to-site functionality (such as IPSEC, DMVPN, and SD-WAN)
  • Locally hosted GPU servers
  • Multi-tenant Cross-Domain Solutions (CDS) Infrastructure-as-Code (Terraform, Ansible)
  • Containerization and orchestration (Docker, Kubernetes, OpenShift)
  • Cloud-native security implementation and security accreditation processes
  • Advanced GitLab CI/CD pipelines and DevSecOps practices
  • Enterprise database services (RDS, RDS Aurora, DynamoDB)
  • Serverless architectures (Lambda)
  • Cloud networking and VPC configuration
  • Monitoring, logging, and data platforms (Elasticsearch, OpenSearch, Splunk)
  • Microservices architecture and API Gateway implementation
  • Development experience with Python, .NET/C#, and related languages
  • Identity and access services (Microsoft Active Directory, LDAP / OpenLDAP, Entra ID, Keycloak)
  • High-assurance cross-domain and encryption solutions (TACLANE, NCAP)
  • Cloud cost-optimization techniques
  • Operating Systems: Linux (e.g., Rocky, RedHat, Amazon, Ubuntu), Windows, and Mac OS

Preferred Skills

  • Master's degree in Information Technology, Network Engineering, Cybersecurity, or related field.
  • Experience supporting federal, defense, intelligence, or classified network environments.
  • Expertise with multi-enclave or cross-domain network architectures.
  • Experience with cloud networking, software-defined networking (SDN), and hybrid cloud environments.
  • Knowledge of security accreditation processes and compliance frameworks.
  • Relevant certifications such as CCNP, CCIE, CISSP, JNCIP, JNCIE, AWS Advanced Networking, or equivalent.

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