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Network Security L3 - Palo Alto

Job in Carlisle, Cumberland County, Pennsylvania, 17013, USA
Listing for: Omni Inclusive
Full Time position
Listed on 2026-07-01
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security
Job Description & How to Apply Below

Network Security L3

The position of a Network Security L3 is responsible for the ongoing Network Security Operations management to provide 24x7 support.

The ideal candidate will have deep experience of networking technologies, such as Security, proxy, GNAC, IDS/IPS, routing, switching, managing heterogeneous environment & generate metrics related to Security, Network performance, capacity, availability, failure rates, and will also have a strong background in network performance management, service delivery and strategic operations planning with a strong technical orientation & creative in problem solving.

Key responsibilities include:

This is a hands-on technical role:

Provide tier-3 (expert level) operational support for Firewalls, Proxies, IDS/IPS, NAC to resolve critical business issues that require deep network troubleshooting techniques and performance analysis

Independently own the Security Infrastructure support solving complex issues and suggest design modifications as appropriate.

Ensure SLAs are met - Responsible for performance analysis, proactive troubleshooting and capacity planning for the Security platforms.

Perform monitoring and maintenance of overall environment working with experienced team members.

Perform change controls. Update process documentation and team portals

Participate in troubleshooting, capacity planning and analysis, performance analysis & Root Cause Analysis.

Communicate with peers and managers regarding system issues & participate in 24x7 on-call.

Automate operational tasks to make processes simpler and more robust.

Ability to handle multiple complex tasks in a dynamic environment, with tight deadlines concurrently.

Refresh heat-maps and operations plans for campus network Security connectivity

Monitor and analyze statistical data to develop improvement plans for network Security and application performance

Provide an effective network Security capacity plan

Develop and monitor global weekly and monthly trending reports by business sectors to justify future growth

Additional Responsibilities Include:

Oversees the management of service level agreements (SLAs) with vendors and service providers

Oversees and directs all aspects of the 24/7/365 mission critical network/telecommunication infrastructure operations; including planning, supporting, and maintaining functions

Serves as the senior-level escalation point for network operations to resolve critical incidents

Maintains policy and procedures manual, conducts monthly service review meetings with key stakeholders

Provides leadership, management, direction, and technical oversight for the network Security operations department

Required Qualifications and

Experience:

Bachelor's degree or related qualification

Certifications is a must (Food and Beverage Client, CCNP Security, CCDP, CCIE Security)

Minimum 12+ years of working in a Network / Telecommunications role, with expert level experience with Firewall Management, Proxy Management, IDS/IPS Management, NAC Management, SD-WAN, VPN, Firewalls, etc technologies

Experience of working in a multi-cultural, virtual team, across multiple geographical regions

Experience with technologies such as:
Cisco / Juniper/ Palo alto HSRP/VRRP, VRF, VPC, VC, LACP, Fabric Path.

Experience with technologies such as:
Cisco VPN, Any connect, Aruba GNAC, Cisco NAC

Experience with technologies such as:
Palo Alto Threat Protection/ Cisco Firepower/ iXIA IPS/IDS, Symantec Secure Web Gateways, Zscaler

Extensive support of Routing Protocols/Technologies such BGP,OSPF, Logical Overlay, IOS-XR, MPLS VPN, Multicast.

Strong understanding of application communication methodologies.

Ability to perform TCP/IP Network traces/packet captures with solid experience interpreting results.

High level of confidence and competence communicating on bridges.

Solid background in vendor management to drive incident resolution.

Experience with monitoring tools and strategies

Execute and analyze packet captures using Wireshark and other related technologies.

Perform or participate in complex maintenance or deployment activities.

Create or modify documentation in response to new events and learnings.

Routinely provide constructive feedback for improvement opportunities

Ability to coordinate and direct activities across multiple teams

Excellent customer focus and engagement skills

Ability to develop solutions within a complex operational environment

Excellent verbal and written communications skills

Advanced knowledge of technical/business environment and problem determination strategies

Develops and maintains standard operating procedure manual and processes used by the team

Additional Responsibilities.

1. Working experience in any public ( Azure, GCP, Oracle, Aws or others) or hybrid cloud

2. Experience on Cloud native or third party firewalls on cloud

3. Azure or AWS networking ( NSG, UDR, VPC, VNET, Route
63 and others)

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