Senior Network Engineer

Cliff Services Inc
Philadelphia, PA

Call Notes from Hiring manager


15+ years of experience


Routing — BGP, EIGRP — MUST HAVE


Firewall— new network, migration from Cisco ASA to Cisco Secure Firewall — Customers today migrate from Cisco ASA to:

� Cisco Secure Firewall Threat Defense (FTD) — MUST HAVE


This is Cisco’s official and recommended upgrade path, supported by automated migration tools.


CISCO certifications is a plus


Key Responsibilities


Design, develop, install, and maintain enterprise network infrastructure, including routers, switches, and related equipment

Implement and manage network security solutions, including firewalls, ACLs, and object groups

Monitor network performance and proactively troubleshoot outages or performance issues

Perform routine network maintenance, including firmware and software upgrades

Provide remote and on-site technical support to internal teams and business users

Test, deploy, and support new network hardware, software, and applications

Develop detailed engineering design packages to integrate new technologies into existing environments

Collaborate with clients, vendors, and cross-functional technical teams to ensure network reliability and quality

Create strategic roadmaps for future hardware and software upgrades and enhancements

Participate in network audits, quality reviews, and standards compliance initiatives

Follow disciplined change management practices with awareness of downtime impact in industrial environments

Perform additional duties as required



Minimum Qualifications


Bachelor’s degree in Computer Science, Information Technology, or equivalent IT/OT discipline from an accredited institution

15+ years of network engineering or related experience, preferably in an industrial or large-scale enterprise environment

Active Cisco CCNP certification preferred (or Siemens CPIN-level equivalent)

Proven ability to work independently with minimal supervision

Strong analytical, problem-solving, and troubleshooting skills

Excellent verbal and written communication skills

Ability to manage multiple tasks with strong attention to detail

Demonstrated ability to learn and adopt new technologies quickly