Hybrid Senior Network Engineer - Cloud & Security

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

Job summary

Liberty Personnel Services, Inc. is seeking a Sr. Network Engineer for a full-time hybrid role based in Philadelphia.

The position requires hands-on enterprise networking experience, ownership of routing, switching, firewall, and cloud connectivity across multiple sites and cloud environments. The ideal candidate will lead complex network projects, provide Tier 3 support, mentor junior staff, and communicate technical details to both technical and non-technical stakeholders.

Qualifications

• 7+ years of enterprise network engineering experience.
• Experience with multi-vendor environments.
• Strong troubleshooting and communication skills.

Responsibilities

• Design, implement, manage, monitor and troubleshoot enterprise network infrastructure.
• Own routing, switching, firewall, NAC, load balancing, WAN, and hybrid cloud networking environments.
• Lead complex network implementations, upgrades and migrations from planning through validation.
• Provide Tier 3 troubleshooting and root-cause analysis for critical issues.

Skills

Senior networking

Multi-vendor

Network design

Communication

Tools

Cisco ASA/Firepower

Fortinet FortiGate

Cisco ISE

F5 BIG-IP

Palo Alto familiarity

Job description

Liberty Personnel Services, Inc. is seeking a Sr. Network Engineer for a full-time hybrid role based in Philadelphia.

The position requires hands-on enterprise networking experience, ownership of routing, switching, firewall, and cloud connectivity across multiple sites and cloud environments. The ideal candidate will lead complex network projects, provide Tier 3 support, mentor junior staff, and communicate technical details to both technical and non-technical stakeholders.