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.