Senior Network Design Engineer — Enterprise LAN Architect

Mainz Brady Group; Maryland Heights (MO); On-site; USD 120,000 - 170,000; Full time

Job summary

Mainz Brady Group seeks a Senior Network Design Engineer to architect, optimize, and support complex enterprise LANs in a manufacturing setting. You will lead design initiatives, implement wired/wireless campus Ethernet, and ensure robust security with firewalls and VPNs.

Ideal candidate has 5+ years of network engineering/design experience, strong troubleshooting skills, and CCNA certification or equivalent. Collaboration with multiple teams is essential.

Qualifications

• 5+ years of Network Engineering/Design in enterprise or manufacturing environments.
• Strong LAN architecture, routing, VLANs, subnetting, and wired/wireless Ethernet.
• Experience with network security, firewalls, VPNs, QoS, and performance optimization.
• Strong Level 3 troubleshooting skills and experience with network monitoring/analysis tools.
• Ability to interpret existing network configurations and translate them into scalable future-state designs.
• Strong documentation, project coordination, communication, and cross-functional collaboration skills.
• CCNA certification or equivalent hands-on networking experience.

Responsibilities

• Design and architect complex LAN environments, including routing, VLANs, subnetting, and voice/video protocols.
• Design and implement robust wired and wireless campus Ethernet infrastructure across large-scale environments.
• Incorporate network security best practices, including firewalls, VPNs, and secure network protocols.
• Provide Level 3 Incident and Problem Management support, troubleshooting complex network issues and driving rapid service restoration.
• Use network monitoring and analysis tools to proactively identify performance issues and improve network availability.
• Partner with WAN/MAN, transport, structured cabling, project management, and other technical teams in agile-inspired sprint environments.
• Optimize network performance using QoS, traffic shaping, load balancing, and network-performance metrics.
• Create and maintain accurate network diagrams, configurations, design documentation, and technical standards.
• Read and assess existing network configurations and translate current-state environments into future-state network designs.
• Lead network design initiatives from planning through implementation, coordinating timelines, resources, dependencies, and stakeholders.
• Communicate complex network concepts clearly to both technical and non-technical stakeholders.
• Stay current with evolving networking technologies, standards, certifications, and industry best practices.

Skills

Network Design

LAN Architecture

Routing

VLANs

Subnetting

Wired/Wireless Ethernet

Network Security

QoS

Troubleshooting

Documentation

Cross-functional Collaboration

Communication

Education

CCNA certification

Tools

Network monitoring tools

Firewall management tools

VPN technologies

RFID technologies

Job description

Mainz Brady Group seeks a Senior Network Design Engineer to architect, optimize, and support complex enterprise LANs in a manufacturing setting. You will lead design initiatives, implement wired/wireless campus Ethernet, and ensure robust security with firewalls and VPNs.

Ideal candidate has 5+ years of network engineering/design experience, strong troubleshooting skills, and CCNA certification or equivalent. Collaboration with multiple teams is essential.