Job Description

Senior Network and Infrastructure Engineer

Location: Central New York
Job Type: Full-time, direct hire
Salary Range: $107,500–$138,000 annually depending on experience

Please note: No third-party or C2C submissions. Candidates must be U.S. citizens or permanent residents. Visa sponsorship is not available at this time.

About the Role

A well-established organization with a multi-site operational environment is seeking a Senior Network and Infrastructure Engineer to support the reliability, performance, and security of its enterprise network infrastructure.

This is a hands-on technical role focused primarily on network administration, troubleshooting, configuration management, and ongoing infrastructure support across multiple facilities. The ideal candidate will have strong experience with enterprise networking technologies, including switching, routing, firewalls, wireless connectivity, VPNs, VLANs, subnetting, and network segmentation.

In addition to maintaining a stable and secure network environment, this individual will contribute to infrastructure improvements, cybersecurity initiatives, and technical projects supporting business operations across multiple locations. Experience supporting manufacturing, warehousing, distribution, or operational technology (OT) environments is a plus.

Schedule: Monday through Friday during standard business hours, with flexibility required for occasional evening, overnight, and weekend work based on operational needs.

Key Responsibilities

• Configure, administer, monitor, and troubleshoot enterprise network infrastructure, including switches, routers, firewalls, wireless networks, VPNs, VLANs, network circuits, and IP addressing.

• Diagnose and resolve complex connectivity and performance issues involving routing, wireless networks, firewall configurations, latency, packet loss, and network segmentation.

• Maintain comprehensive network documentation, including architecture diagrams, hardware inventories, IP addressing plans, DHCP configurations, firewall policies, circuit records, and configuration standards.

• Implement and maintain firewall policies, VPN connectivity, network address translation (NAT), network segmentation, and secure configuration standards.

• Support network connectivity across multiple facilities, including manufacturing, warehousing, distribution, and OT environments, while maintaining appropriate separation between operational and corporate systems.

• Coordinate network infrastructure improvements, WAN connectivity, SD-WAN administration, circuit changes, equipment replacements, vendor support, and related technical projects.

• Manage ISP and telecommunications circuit activities, including service provisioning, renewals, upgrades, disconnects, billing coordination, outage escalation, and recordkeeping.

• Assist with cybersecurity investigations, vulnerability remediation, incident response, and other security initiatives requiring network expertise.

• Provide support for related infrastructure services, including servers, VMware virtualization, backup operations, system patching, authentication integrations, and disaster recovery testing, as assigned.

• Resolve escalated service desk issues requiring advanced networking or infrastructure knowledge.

• Participate in planned maintenance, on-call escalation, emergency changes, and routine infrastructure upkeep.

Qualifications

Education

• Bachelor’s degree in computer science, networking, engineering, information technology, or a related discipline, or equivalent professional experience.

Experience

• At least five years of progressive experience in network administration, infrastructure support, or a closely related technical field.

• Hands-on experience supporting enterprise network environments across multiple locations.

• Experience maintaining technical documentation, configuration records, network standards, and operational procedures.

• Experience supporting manufacturing, warehousing, distribution, or operational technology environments is preferred.

Technical Skills

• Strong hands-on knowledge of enterprise switching, routing, firewalls, and wireless networking.

• Proficiency with VPNs, VLANs, IP subnetting, network segmentation, and network troubleshooting.

• Familiarity with WAN connectivity, SD-WAN administration, network circuits, and ISP coordination.

• Working knowledge of related infrastructure technologies, including servers, VMware virtualization, backup operations, patching, and authentication integrations, is beneficial.

Certifications

Preferred certifications include:

• Cisco CCNA or CCNP

• Juniper JNCIA

• Aruba Certified Professional

• CompTIA Network+

• Comparable networking certifications

Soft Skills

• Strong analytical, troubleshooting, and problem-solving abilities.

• Excellent documentation and organizational skills.

• Effective communication and collaboration with technical teams, vendors, and business stakeholders.

• Ability to work independently, manage competing priorities, and respond effectively to infrastructure issues.

• Willingness to participate in occasional after-hours maintenance and operational support.

Why Join Us?

• Competitive compensation: Annual salary range of $107,500–$138,000, along with competitive bonus programs.

• Benefits from day one: Medical, dental, and vision coverage available on your first day of employment.

• Retirement benefits: Eligibility for a 401(k) retirement plan with employer matching after 90 days.

• Educational support: Access to tuition reimbursement and scholarship programs.

• Broad technical exposure: Work across enterprise networking, cybersecurity, virtualization, and multi-site infrastructure.

• Meaningful impact: Play a hands-on role in maintaining secure, reliable connectivity for critical business operations.

Interested in Learning More?

If you have strong enterprise networking experience and are looking for an opportunity to make a direct impact on a multi-site infrastructure environment, we’d welcome the opportunity to connect. Apply today to learn more about this opportunity.

ISSI Technology Professionals celebrates diversity. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

Clarify the after-hours expectationsSeparate required and preferred qualifications