Network Engineer

CUS Solution; United States; On-site; USD 90,000 - 140,000; Full time

Job summary

CUS Solution is seeking an experienced Network Engineer to design, implement, maintain, and troubleshoot our enterprise network infrastructure. The role requires hands-on expertise in routing and switching, security, and performance optimization to support business-critical applications.

You will configure and manage routers, switches, firewalls, VPNs, and monitoring tools, collaborate with security, cloud, and IT teams, and participate in incident response and change management.

Qualifications

• Bachelor's degree in CS/IT or related field.
• 5–8 years of hands-on network engineering experience.
• Strong understanding of LAN/WAN, TCP/IP, DNS, and DHCP.
• Experience with routing protocols (BGP, OSPF, EIGRP).
• Familiarity with ACLs, IPsec, NAT and network security concepts.

Responsibilities

• Design, configure, and maintain enterprise network infrastructure (LAN/WAN/WLAN/VPN).
• Manage routers, switches, firewalls, and wireless access points.
• Implement routing protocols including BGP, OSPF, EIGRP, and static routes.
• Monitor performance and troubleshoot connectivity and latency issues.
• Collaborate with security, cloud, and IT teams on network projects.
• Maintain documentation, incident management, and change processes.

Skills

Analytical thinking

Problem-solving

Communication

Education

Bachelor's degree in CS/IT

Tools

Wireshark

SolarWinds

PRTG

Cisco DNA Center

Job description

We are seeking an experienced Network Engineer to design, implement, maintain, and troubleshoot enterprise network infrastructure. The ideal candidate will have strong expertise in network architecture, routing and switching, network security, and performance optimization.

The candidate will be responsible for ensuring network reliability, availability, and security while supporting business-critical applications and services. This role requires hands-on experience with enterprise networking technologies, network monitoring tools, and troubleshooting complex network issues.

Key Responsibilities

• Design, configure, implement, and maintain enterprise network infrastructure, including LAN, WAN, WLAN, and VPN environments.
• Configure and manage network devices such as routers, switches, firewalls, and wireless access points.
• Implement and troubleshoot routing protocols such as BGP, OSPF, EIGRP, and static routing.
• Monitor network performance, availability, and traffic using network monitoring and management tools.
• Troubleshoot complex network connectivity, latency, packet loss, and performance-related issues.
• Implement and maintain network security policies, access control lists (ACLs), VLANs, and firewall configurations.
• Manage network infrastructure upgrades, firmware updates, patching, and configuration backups.
• Collaborate with security, infrastructure, cloud, and IT operations teams to support enterprise network environments.
• Support network capacity planning, infrastructure optimization, and disaster recovery initiatives.
• Maintain network documentation, topology diagrams, configuration records, and operational procedures.
• Participate in incident management, root cause analysis, and network change management processes.
• Ensure network infrastructure complies with organizational security policies and industry best practices.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field, or equivalent practical experience.
• 5–8 years of hands-on experience in network engineering, administration, and troubleshooting.
• Strong understanding of enterprise networking concepts, including LAN, WAN, VLAN, VPN, TCP/IP, DNS, and DHCP.
• Hands-on experience with routing and switching technologies.
• Strong knowledge of routing protocols such as BGP, OSPF, and EIGRP.
• Experience configuring and managing enterprise routers, switches, and firewalls.
• Familiarity with network security concepts, including ACLs, NAT, IPsec, and network segmentation.
• Experience with network monitoring and troubleshooting tools such as Wireshark, SolarWinds, PRTG, or Cisco DNA Center.
• Strong analytical, problem-solving, and troubleshooting skills.
• Excellent communication and collaboration skills.

Preferred Qualifications

• Cisco CCNP Enterprise, CCNP Security, or equivalent networking certification.
• Experience with cloud networking platforms such as AWS, Microsoft Azure, or Google Cloud.
• Knowledge of Software-Defined Networking (SDN) and Software-Defined WAN (SD-WAN).
• Experience with network automation tools such as Python, Ansible, or Terraform.
• Familiarity with load balancers such as F5 BIG-IP, Citrix ADC, or similar technologies.
• Experience with next-generation firewalls such as Palo Alto Networks, Fortinet, or Cisco Firepower.
• Knowledge of IPv6 implementation and troubleshooting.
• Experience working in large-scale enterprise or data center networking environments.
• Familiarity with network infrastructure as code and automation practices.