Network Engineer - Level 1

RiVidium Inc. is seeking an experienced Network Engineer - Level 1 to support the Naval Criminal Investigative Service (NCIS) enterprise network environment. This role serves as a senior‑level network engineering subject matter expert responsible for ensuring the reliability, security, and performance of mission‑critical network infrastructure supporting multiple enclaves and tenant agencies.

The Network Engineer will design, implement, monitor, maintain, and optimize enterprise network infrastructure while supporting complex networking projects within a highly secure Department of Defense environment. The successful candidate will provide advanced troubleshooting, network architecture support, vulnerability remediation, and operational support for a large‑scale enterprise network.

This position requires extensive experience with Cisco networking technologies, Palo Alto firewalls, routing and switching protocols, network security, and DoD cybersecurity compliance requirements.

• Monitor, manage, and optimize network performance across multiple enclaves using enterprise monitoring and management tools.
• Design, configure, implement, and maintain enterprise networking infrastructure.
• Install and upgrade network hardware and software to support operational requirements.
• Develop and maintain network diagrams, configurations, technical documentation, deployment plans, and architecture drawings.
• Collaborate with tenant agency engineers and stakeholders on networking initiatives and infrastructure projects.
• Troubleshoot network outages, performance issues, and connectivity problems to ensure mission continuity.
• Support routing, switching, firewall, and network security operations.
• Coordinate with vendors to evaluate, procure, and implement networking solutions.
• Conduct preventative maintenance on network devices and infrastructure components.
• Ensure timely remediation of vulnerabilities and compliance with DISA STIG requirements.
• Support network modernization initiatives and evaluate emerging technologies.
• Provide technical expertise and recommendations to leadership and Government stakeholders.
• Participate in after‑hours troubleshooting and support activities as required.

• Active TS/SCI clearance required at contract start.
• Minimum ten (10) years of progressively responsible experience in network engineering and enterprise infrastructure support.
• Experience supporting data center technologies within large enterprise or government environments.
• Strong experience with:
  • Inter‑VLAN Routing
  • OSPF
  • BGP
  • HSRP
• Hands‑on experience with:
  • Cisco Identity Services Engine (ISE)
  • Cisco DNA Center / Catalyst Center
  • Cisco ASR Routers
  • Cisco Catalyst Switches
  • Cisco Nexus Platforms
  • Cisco Firewalls
  • Palo Alto Firewalls
• Strong understanding of network security principles and enterprise architecture.
• Proficiency with Microsoft Visio and Microsoft Office Suite.
• Ability to create and maintain detailed technical documentation and network diagrams.
• Must meet DoD 8140 Cybersecurity Workforce requirements.

Candidates must possess one of the following at contract start:

• Cisco Certified Network Professional (CCNP) – Enterprise, Data Center, or Service Provider Track

• Successful completion of one of the following Cisco core exams:
  • DCCOR
  • ENCOR
  • SPCOR

Additionally, candidates must possess:

• Experience supporting DoD, Department of the Navy (DoN), Intelligence Community, or other classified environments.
• Experience with:
  • Cisco Stealthwatch
  • Solar Winds
• Familiarity with DISA STIGs and vulnerability management processes.
• Experience supporting multi‑enclave network architectures and cross‑domain solutions.
• Knowledge of:
  • SD‑WAN
  • MPLS
  • Software‑Defined Networking (SDN)
  • Zero Trust Architecture
  • Network Access Control (NAC)
• Familiarity with AWS and Azure networking concepts.
• Palo Alto Networks Certified Network Security Engineer (PCNSE).
• Experience mentoring or leading junior network engineers.
• Experience supporting multi‑tenant or shared services environments.

• Support mission‑critical national security and law enforcement operations.
• Work with cutting‑edge networking and…