Senior Network Engineer: LAN/WAN, Cisco, Cloud & Security

Dutech Systems; Austin, Northern (TX, KY); Hybrid; USD 90,000 - 140,000; Full time

Job summary

Dutech Systems is seeking an experienced Network Engineer to design, deploy, and manage our enterprise LAN/WAN infrastructure in Austin, TX. You will work across routing, switching, security, and cloud networking to ensure high availability and performance.

The role requires 5+ years of experience, strong Cisco expertise, and hands-on skills with VPNs, VLANs, and firewalls. Collaboration with security, cloud, and application teams is essential.

Qualifications

• 5+ years of experience in network engineering or network infrastructure.
• Strong knowledge of Cisco networking technologies and enterprise network environments.
• Hands-on experience with routing, switching, VLANs, VPNs, firewalls, and wireless networking.
• Strong understanding of TCP/IP, DNS, DHCP, NAT, and network security.
• Experience with network monitoring and troubleshooting tools.
• Knowledge of cloud networking concepts in AWS and/or Azure.
• Strong problem-solving, communication, documentation, and analytical skills.

Responsibilities

• Design, configure, maintain, and troubleshoot enterprise LAN/WAN network infrastructure.
• Configure and manage routers, switches, firewalls, wireless access points, and other network devices.
• Implement and support routing and switching protocols such as BGP, OSPF, EIGRP, VLAN, STP, and TCP/IP.
• Monitor network performance, availability, capacity, and security.
• Troubleshoot complex network connectivity, performance, and configuration issues.
• Support network upgrades, migrations, installations, and infrastructure projects.
• Configure and maintain network security solutions, including firewalls, VPNs, ACLs, and network segmentation.
• Work with cloud and hybrid networking environments such as AWS and Azure.
• Use network monitoring and management tools to identify and resolve issues proactively.
• Maintain network diagrams, configurations, documentation, and operational procedures.
• Collaborate with systems, security, cloud, and application teams to resolve infrastructure issues.
• Participate in incident response, root-cause analysis, and change-management activities.
• Ensure network infrastructure follows organizational security and availability standards.

Skills

5+ years experience

Cisco networking

Routing & switching

VLANs & VPNs

Firewalls & wireless

TCP/IP & DNS

Network security

Monitoring tools

Cloud networking

AWS / Azure

Problem solving

Communication & documentation

Analytical skills

Network monitoring tools

Tools

Network monitoring tools

Job description

Dutech Systems is seeking an experienced Network Engineer to design, deploy, and manage our enterprise LAN/WAN infrastructure in Austin, TX. You will work across routing, switching, security, and cloud networking to ensure high availability and performance.

The role requires 5+ years of experience, strong Cisco expertise, and hands-on skills with VPNs, VLANs, and firewalls. Collaboration with security, cloud, and application teams is essential.