Senior NetOps Engineer (on site)

Liberty Personnel Services, Inc.; Trevose (PA); Hybride; USD 140 000 - 190 000; Plein temps

Résumé du poste

Liberty Personnel Services, Inc. is seeking a Senior NetOps Engineer to strengthen and maintain enterprise network security within a Cisco-centric environment.

The role emphasizes leading security projects, complex troubleshooting, and collaboration across IT teams and vendors. You will oversee firewall and policy management, system hardening, and vulnerability remediation, while participating in on-call rotations and after-hours changes as needed.

Qualifications

• 10+ years of hands-on experience with enterprise networking and network security infrastructure in a predominantly Cisco environment.
• Active CCNP Security certification or equivalent security-focused certification preferred.
• Bachelor's degree in a technical field or equivalent education and experience preferred.

Responsabilités

• Lead network security projects, implementations, integrations, and infrastructure improvements.
• Manage, maintain, and troubleshoot firewalls, security policies, identity management systems, and other network security technologies.
• Provide advanced escalation support, investigate complex issues, identify root causes, and drive incidents through resolution.
• Conduct security device reviews, system hardening, compliance assessments, and vulnerability remediation.
• Coordinate with internal teams and vendors to resolve technical issues and deliver projects on schedule.
• Support network security technologies and methodologies, including Zero Trust, EDR/XDR, data loss prevention, secure network access, and identity management.

Connaissances

Network security leadership

Cisco security technologies

Troubleshooting expert

Project management

On-call rotation

Formation

Bachelor's degree in a technical field

Description du poste

Full time opening for a NetOps Engineer. This role is on site for the first six months with some WFH options thereafter. The Senior NetOps Engineer plays a critical role in strengthening and maintaining the organization’s network security infrastructure within a predominantly Cisco environment. This individual leads complex network security projects, provides advanced escalation support, drives vulnerability remediation, and ensures the reliability, integrity, and availability of enterprise network systems. The role requires deep technical expertise, strong troubleshooting capabilities, and the ability to collaborate across IT teams, business units, and external vendors.

Key Responsibilities

• Lead network security projects, implementations, integrations, and infrastructure improvements.
• Manage, maintain, and troubleshoot firewalls, security policies, identity management systems, and other network security technologies.
• Provide advanced escalation support, investigate complex issues, identify root causes, and drive incidents through resolution.
• Conduct security device reviews, system hardening, compliance assessments, and vulnerability remediation.
• Evaluate network security architecture and topology, recommending improvements to strengthen the organization’s security posture.
• Develop and maintain technical documentation, network diagrams, support procedures, and operational runbooks.
• Coordinate with internal teams and vendors to resolve technical issues and deliver projects on schedule.
• Support network security technologies and methodologies, including Zero Trust, EDR/XDR, data loss prevention, secure network access, and identity management.
• Participate in an on-call rotation and perform after-hours maintenance and changes as required.

Qualifications

• 10+ years of hands-on experience with enterprise networking and network security infrastructure in a predominantly Cisco environment.
• Extensive experience leading large-scale network projects, implementations, and integrations.
• Expert-level knowledge of Cisco security technologies, firewalls, network monitoring, and advanced troubleshooting.
• Strong understanding of TCP/IP, routing protocols including OSPF and BGP, and WAN technologies such as MPLS, IPsec, SD-WAN, and remote-access VPNs.
• Experience with VXLAN fabrics, multi-VRF environments, Zero Trust architectures, and enterprise security controls.
• Strong project management, vendor coordination, documentation, and communication skills.
• Active CCNP Security certification or equivalent security-focused certification preferred.
• Bachelor's degree in a technical field or equivalent education and experience preferred.