Endurance IT Services delivers comprehensive Managed IT Services, Cybersecurity Solutions, and IT Consulting, empowering organizations to stay secure, efficient, and resilient. Our team also specializes in Staff Augmentation, supporting clients with Direct-Hire, Contract-to-Hire, and Contract placements, as well as internal full-time opportunities.

Because we work closely with multiple clients, certain opportunities may evolve—but our priority remains helping candidates find the role that best fits their skills and career goals.

We are actively hiring a seasoned Infrastructure Engineer for a full-time, long-term onsite contract in Newport News, VA. This role requires deep expertise in enterprise-level network design, architecture, and security, with a strong focus on Cisco technologies and large-scale infrastructure.

The ideal candidate will have extensive experience designing, implementing, and supporting complex network environments across data centers and remote office locations. This position involves advanced routing and switching, enterprise security, firewall management, and high-availability architecture, along with incident response and performance optimization.

• Provide advanced Cisco network support, including system-level design, network architecture, and enterprise security.
  
• Design and maintain CAN/MAN/LAN infrastructure and support data center virtualization initiatives.
  
• Configure and troubleshoot the TCP/IP protocol stack, dynamic routing, switching, and Layer 3 / Layer 4 access controls.
  
• Manage and support stateful firewalls and enforce enterprise network boundary security.
  
• Ensure high availability, performance, and security across mission-critical network architectures.
  
• Participate in on-call support rotations and respond to network incidents and outages.
  
• Use network monitoring, diagnostics, and analysis tools to proactively identify and resolve bottlenecks, vulnerabilities, and system failures.
  

• 10+ years of hands-on experience with Cisco switching and routing configuration, management, and troubleshooting.
  
• 10+ years designing and supporting scalable enterprise networks using routers, switches, firewalls, and load balancers.
  
• 10+ years working with OSPF, EIGRP, BGP, multicast routing, VoIP, and QoS in IPv4/IPv6 environments.
  
• Expertise with Cisco IOS, CatOS, NxOS, Cisco Works, TACACS+, ASA, FWSM, HP OpenView.
  
• Strong knowledge of TCP/IP, Layer 2/Layer 3 protocols, and stateful firewalls.
  
• Proven experience with Palo Alto firewalls and enterprise IDS/IPS solutions.
  
• Proficiency with tools such as SolarWinds, Wireshark, and other network analysis platforms.
  
• Demonstrated ability to troubleshoot complex technical challenges and drive innovative solutions.
  
• Experience supporting VMware virtualized environments.
  
• CCNP certification preferred (not required).