Network Engineer

Network Engineer

Location:

Radford, Virginia (Onsite)

We are seeking an experienced and motivated Senior Network Engineer to join our team. This role is pivotal to the implementation and sustainment of the switching, routing, firewall, load balancing, and network infrastructure underpinning globally dispersed datacenter environments. The successful candidate will engineer and sustain the transport layer that a diverse portfolio of mission partners depends on, ensuring the confidentiality, integrity, and availability of their critical systems across physical, virtual, and containerized environments.

• Design, implement, and maintain scalable, high-performance network infrastructure.
• Translate current and future mission requirements into network architecture and engineering solutions, accounting for growth, capacity, and lifecycle refresh.
• Configure and deploy network devices including routers, switches, firewalls, load balancers, and associated network management tooling.
• Evaluate proposed system, network, and cluster configuration changes for operational and security impact, providing expert recommendations to ensure availability and compliance are maintained.
• Monitor network performance and proactively identify and resolve issues to ensure optimal network operation.
• Provide Tier II and Tier III troubleshooting support in coordination with internal teams, mission partners, and external stakeholders.
• Maintain the security posture of network devices to specified standards by implementing security controls, vendor best practices, and federal standards.
• Develop and execute operational plans to remediate or mitigate vulnerabilities affecting network devices.
• Document environment changes and follow established change and incident management processes.
• Develop project documentation to include standard operating procedures, project plans, and network diagrams.
• Train and mentor junior team members, elevating the technical depth of the broader network team.

• 5+ years of network engineering experience, including hands‑on configuration and sustainment of switches, routers, firewalls, load balancers, and network management tooling within a data center environment. Capable of independently designing, deploying, and troubleshooting enterprise network infrastructure at the Tier II/Tier III level.

• Thorough, practical experience implementing and maintaining the security posture of network infrastructure, hardening devices against established security benchmarks and vendor guidance, evaluating proposed configuration changes for security impact, and leading vulnerability remediation efforts on network platforms in support of audit and compliance requirements.

• Proven ability to produce and maintain technical documentation, standard operating procedures, project plans, and network diagrams, and to mentor junior engineers, with the interpersonal, analytical, and written/verbal communication skills to work effectively across internal teams and mission partners.

• Must possess and maintain an active, approved baseline certification such as CompTIA Security+ CE or an approved equivalent to meet foundational workforce qualification requirements.

• Engineer-level experience with the Cisco Nexus line (9K, 7K, 5K, and 2K) and the Cisco Catalyst line.
• Engineer-level experience with Palo Alto firewalls.
• Engineer-level experience with F5 load balancers.
• Experience with network automation and scripting using Ansible and Python.
• Experience interfacing with cloud environment counterparts (AWS, Azure, private cloud).
• Experience working in Dev Sec Ops  environments and integrating network changes into CI/CD pipelines.
• F…