Manager, Network Engineering

Liberty Personnel Services, Inc.; Princeton (NJ); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Liberty Personnel Services, Inc. is seeking a Manager of Network Engineering and Operations to lead reliability, performance, security, and ongoing improvements of an enterprise network spanning datacenter, cloud, WAN, LAN, wireless, SD-WAN, internet, and telecom environments.

The role combines technical leadership with people management, partnering closely with cybersecurity, cloud, and business teams to maintain reliable network services and deliver key technology initiatives.

Qualifications

• 6+ years in enterprise network engineering, infrastructure operations, or network operations management.

Responsibilities

• Lead daily network operations, monitoring, incident response, escalations, and service restoration.
• Mentor and develop network engineering and operations staff.
• Oversee enterprise WAN, LAN, wireless, datacenter, cloud, internet, and SD-WAN environments.
• Drive network automation, standardization, and operational efficiency.
• Collaborate with cybersecurity, cloud, and business teams to support initiatives.

Skills

Enterprise routing & switching

TCP/IP & DNS/DHCP

BGP/OSPF/EIGRP

WAN/LAN architectures

Python

Ansible/ IaC

Tools

ServiceNow

SolarWinds NPM/NCM/NTA

Cisco ISE

Job description

Manager of Network Engineering and Operations

Hybrid onsite

We are seeking a Manager of Network Engineering and Operations to lead the reliability, performance, security, and ongoing improvement of an enterprise network. This position manages a team of network engineering and operations professionals supporting datacenter, cloud, WAN, LAN, wireless, SD-WAN, internet, and telecom environments.

The role combines technical expertise with people leadership and works closely with infrastructure, cybersecurity, cloud, and business teams to maintain reliable network services and deliver key technology initiatives.

Responsibilities

• Lead daily network operations, monitoring, incident response, escalations, and service restoration.
• Manage, mentor, and develop network engineering and operations staff.
• Oversee enterprise WAN, LAN, wireless, datacenter, cloud, internet, and SD-WAN environments.
• Lead major incidents, root-cause reviews, and network improvement initiatives.
• Drive network automation, standardization, and operational efficiency.
• Use Python, Ansible, APIs, and Infrastructure-as-Code to automate network operations.
• Lead network projects including branch deployments, datacenter upgrades, cloud connectivity, and hardware refreshes.
• Manage network vendors, telecom providers, contracts, SLAs, and support agreements.
• Develop network KPIs, dashboards, capacity plans, and performance metrics.
• Partner with cybersecurity teams on network security, compliance, vulnerability remediation, and governance.
• Establish network standards, best practices, and change management processes.
• Work with architecture, infrastructure, security, and business teams to support technology initiatives.

Requirements

• 6+ years of experience in enterprise network engineering, infrastructure operations, or network operations management.
• 2+ years of technical team leadership experience.
• Experience supporting large, geographically distributed enterprise environments.
• Experience leading major incidents, infrastructure projects, and operational teams.
• Experience managing telecom providers, technology vendors, and service contracts.
• Experience with hybrid cloud networking.

Technical Skills

• Enterprise routing and switching
• TCP/IP, DNS, DHCP, NAT, and Multicast
• BGP, OSPF, and EIGRP
• VLANs, STP, EtherChannel, VXLAN, and Layer 2 technologies
• Wireless networking
• SD-WAN
• Network security
• Cisco and Meraki
• WAN, LAN, internet, and wireless architectures
• MPLS, DIA, broadband, LTE, and carrier services
• ServiceNow or other IT Service Management platforms
• SolarWinds NPM, NCM, and NTA
• Cisco ISE and Cisco Prime

Preferred Skills

• Python
• Ansible
• Infrastructure-as-Code
• API integrations and orchestration
• Network observability and monitoring

Preferred Certifications

• CCNP Enterprise or higher
• ITIL Foundation
• Additional cloud networking certifications

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