Senior Network & Infrastructure Engineer - Multi-Site Impact

Byrne, Inc.; Town of LaFayette (NY); On-site; USD 108,000 - 138,000; Full time

Benefits offered by this job

Competitive bonus programs

Medical, Dental, Vision from day 1

Supplemental benefits from day 30

401(k) with company match from day 90

Tuition reimbursement / education aid

Job summary

Byrne is seeking a Senior Network and Infrastructure Engineer to maintain and secure a multi-site network environment with a focus on hands-on administration, reliability, and performance. The role covers switching, routing, firewalls, wireless, VPNs, VLANs, segmentation, and ongoing documentation.

The ideal candidate will have 5+ years in network administration, experience across enterprise networks, and a strong ability to document configurations and standards.

Qualifications

• Minimum 5 years of progressive experience in network administration, infrastructure support, or a closely related role.
• Hands-on experience with enterprise switching, routing, firewalls, wireless, VPNs, VLANs, subnetting, and network troubleshooting.
• Experience supporting multi-site environments and documenting network standards, configurations, and procedures.
• Bachelor’s degree in CS, networking, engineering, information technology, or equivalent industry experience.

Responsibilities

• Administer and troubleshoot enterprise switching, routing, firewall, wireless, VPN, VLAN, circuit, and IP addressing environments.
• Maintain network documentation, including diagrams, device inventories, IP addressing schemes, DHCP scopes, firewall rules, circuit details, and configuration standards.
• Analyze and resolve connectivity, routing, wireless, firewall, latency, packet loss, segmentation, and performance issues across multiple locations.
• Implement and maintain firewall policies, VPN access, NAT rules, network segmentation, and secure network configuration practices.
• Support manufacturing, warehouse, distribution, and OT network requirements while maintaining secure separation from business systems.
• Coordinate network upgrades, WAN connectivity, SD-WAN administration, ISP support, circuit changes, hardware replacements, vendor support, and infrastructure project work.
• Manage ISP relationships and circuit lifecycle activities, including new service requests, renewals, upgrades, disconnects, billing coordination, outage escalation, and documentation.
• Assist with cybersecurity alerts, vulnerability remediation, incident response, and security tools when network expertise is required.
• Support related servers, VMware, backups, patching, authentication integrations, and disaster recovery testing as assigned.
• Assist with escalated helpdesk tickets where network or infrastructure expertise is required.
• Participate in scheduled maintenance, on-call escalation, emergency changes, and routine system maintenance. Perform other duties as assigned.

Skills

Network administration

Network troubleshooting

Documentation

Multi-site support

Education

Bachelor's degree in CS/Networking/IT

CCNA/CCNP or similar

JNCIA

Aruba Certified Professional

Network+

Tools

VMware

Job description

Byrne is seeking a Senior Network and Infrastructure Engineer to maintain and secure a multi-site network environment with a focus on hands-on administration, reliability, and performance. The role covers switching, routing, firewalls, wireless, VPNs, VLANs, segmentation, and ongoing documentation.

The ideal candidate will have 5+ years in network administration, experience across enterprise networks, and a strong ability to document configurations and standards.