Network Engineer
TRISTAR · Bloomington, IN · 1 wk ago
Information TechnologyFull-time
About the role
We are seeking a Network Engineer to support the design, administration, documentation, and cybersecurity of enterprise and tactical network infrastructures supporting Department of Defense (DoD) systems.
Responsibilities
- Develop, maintain, and update the Network Design Document (NDD) to accurately reflect current network architectures and planned system modifications.
- Document significant network design changes and ensure all updates are aligned with system requirements, engineering baselines, and cybersecurity objectives.
- Create, update, and maintain the system Boundary Diagram, accurately documenting network boundaries, trust zones, interfaces, and internal connections to support cybersecurity assessments and authorization activities.
- Collaborate with system engineers, cybersecurity personnel, and software development teams to ensure network documentation remains accurate throughout the system lifecycle.
- Configure, administer, and troubleshoot enterprise network infrastructure, including routers, switches, firewalls, VPNs, VLANs, routing protocols, and network segmentation technologies.
- Deploy, configure, and maintain new network hardware and supporting infrastructure as required.
- Evaluate existing network security controls and implement enhancements to improve system security, performance, and resiliency.
- Perform network performance analysis, capacity planning, and troubleshooting to maintain reliable system operations.
- Support implementation of secure network architectures consistent with DoD cybersecurity policies, RMF requirements, DISA STIGs, and applicable security controls.
- Participate in engineering design reviews, configuration control boards, cybersecurity assessments, and accreditation activities.
- Maintain accurate network inventories, diagrams, and technical documentation supporting system sustainment and lifecycle management.
- Coordinate with multidisciplinary engineering teams to integrate network solutions supporting mission requirements.
Requirements
- 5+ years of experience designing, administering, and supporting enterprise network environments.
- Experience configuring and managing: Layer 2 and Layer 3 switches, Enterprise routers, Firewalls, VPN technologies, VLANs, Network segmentation, Routing protocols (OSPF, BGP, EIGRP or similar).
- Experience maintaining technical network documentation, including network diagrams, architecture documents, and design documentation.
- Experience utilizing GitLab or similar version control systems for managing network configurations and documentation.
- Strong understanding of TCP/IP networking, DNS, DHCP, routing, switching, and network troubleshooting.
- Experience supporting DoD cybersecurity requirements, including RMF, STIG implementation, vulnerability remediation, and system accreditation.
- Familiarity with enterprise network monitoring and diagnostic tools.
- Ability to communicate effectively with engineers, cybersecurity personnel, program management, and government stakeholders.
- Bachelor's degree in Computer Science, Information Technology, Network Engineering, Cybersecurity, or a related technical discipline (or equivalent combination of education and relevant experience).
- Must have or be able to obtain a CompTIA Security+.
- Must be a U.S. Citizen.
- Ability to obtain and obtain a security clearance.