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Network Design Engineer

Job in Maryland Heights, St. Louis city, Missouri, 63043, USA
Listing for: Mainz Brady Group
Full Time position
Listed on 2026-10-04
Job specializations:
  • IT/Tech
    Network Engineer, Systems Engineer
Salary/Wage Range or Industry Benchmark: 120000 - 170000 USD Yearly USD 120000.00 170000.00 YEAR
Job Description & How to Apply Below

Senior Network Design Engineer

We are seeking an experienced Senior Network Design Engineer with 5+ years of network engineering and design experience to architect, optimize, and support complex enterprise LAN environments within a manufacturing setting. This role combines hands-on network architecture with advanced troubleshooting, performance optimization, and cross-functional project delivery.

Key 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.
Qualifications
  • 5+ years of Network Engineering/Network Design experience, ideally supporting complex enterprise or manufacturing environments.
  • Strong experience with LAN architecture, routing, VLANs, subnetting, wired/wireless Ethernet, and network troubleshooting.
  • 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 network designs.
  • Strong documentation, project coordination, communication, and cross-functional collaboration skills.
  • CCNA certification or equivalent hands-on networking experience.
  • Experience with active or passive RFID technologies is a plus, but not required.
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