Senior Network Engineer - Zero-Trust Cross-Enclave Lead

i3, LLC; Chantilly (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

i3, LLC is seeking a Network Engineer - SME to lead the design, implementation, and optimization of secure, resilient network infrastructures across complex environments. You will drive zero-trust design, cross-enclave interoperability, and modernization efforts while ensuring secure communications for mission-critical operations.

The role requires extensive experience in enterprise networks, security architecture, and leadership across security, architecture, and operations teams.

Qualifications

• Bachelor's degree in IT/Networking or related field required.
• 10+ years of experience in enterprise network design and operation.
• Experience with zero-trust architecture and cross-enclave interoperability.
• Experience in secure, highly regulated or classified environments.

Responsibilities

• Design and implement enterprise network architectures for secure, mission-critical ops.
• Lead zero-trust design initiatives and cross-enclave interoperability solutions.
• Optimize network performance, reliability, and security across multi-enclave environments.

Skills

Enterprise networking

Zero-trust

Routing & Switching

Network security

Terraform

Ansible

Docker

Kubernetes

OpenShift

Python

.NET/C#

Active Directory

LDAP/OpenLDAP

Entra ID

Keycloak

Education

Bachelor's degree in IT/Networking

Master's degree in IT/Networking

Security related certifications (CCNP/CCIE/CISSP)

Tools

AWS GovCloud/SC2S/C2S

GCP

Nutanix

Prism Central

NDFS

Cisco switching/routing/firewalling

IPSEC, DMVPN, SD-WAN

Terraform

Ansible

Docker

Kubernetes

OpenShift

Cloud networking

VPC configuration

Elasticsearch/OpenSearch/Splunk

GitLab CI/CD

Job description

i3, LLC is seeking a Network Engineer - SME to lead the design, implementation, and optimization of secure, resilient network infrastructures across complex environments. You will drive zero-trust design, cross-enclave interoperability, and modernization efforts while ensuring secure communications for mission-critical operations.

The role requires extensive experience in enterprise networks, security architecture, and leadership across security, architecture, and operations teams.