Lennox International · Richardson, TX

Salary
$99,000–$130,200from the description
Posted
Jul 15, 2026
Location
Richardson, TX
Last confirmed open
Jul 21, 2026

What this job asks for AI summary

A first-level escalation role focused on firewall administration and network security operations. Day-to-day work centers on implementing and reviewing firewall change requests, troubleshooting network connectivity and client VPN issues, and supporting security enhancements alongside an engineering team. Suited to candidates with hands-on Palo Alto next-generation firewall experience and a solid grounding in network protocols and security fundamentals.

Mid level · 5+ years · National · Full-time

Must have (5)
Palo Alto Networks · 3+ yrsWindows Server · 3+ yrsVPNIDS/IPSPuTTY
Nice to have (3)
LinuxNISTPCNSA, Pcnse, Sscp, Security+, Gsec or Ccnp Security

“or” means any one of them counts — you don't need all of them.

Posted 2 times — it's one opening, so apply once.

We read this from the posting text with AI. Skim the description below before ruling yourself out.

How this req sits in the market our data

What gives you an edge
Windows Server10%

Rare in this occupation — lead with these, and say what you built with them.

What the occupation pays Median $132,021 (middle half $99,961–$167,095). This posting is about at that midpoint.

Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.

Why we read it this way (7)

The role sits at the boundary between Information Security (firewall policy, threat mitigation, IDS/IPS) and Network/Systems Administration (firewall ops, connectivity troubleshooting). Primary framing as 'Network Security Analyst' with a security-first competency list tips it to 15-1212, but 15-1244 is a credible runner-up given the heavy operational/firewall-ops duties.

The degree requirement is 'Associates degree in related field or equivalent experience required.' Because equivalent experience is explicitly accepted, this is treated as no hard degree gate.

PuTTY is listed as the example SSH connectivity tool ('ssh connectivity tools such as Putty'); 1–2 years of experience with such tools is required. PuTTY is named as the representative tool.

Certifications (SSCP, Security+, PCNSA/PCNSE, GSEC, CCNP Security) are explicitly stated as preferred, not required.

Linux familiarity and cybersecurity framework knowledge (NIST, zero trust) appear under the Competencies section with 'Familiarity' language, indicating a lower bar than the hard-required Palo Alto and Windows skills — treated as preferred.

The 5-year overall experience requirement combined with 2–3 years of Palo Alto firewall management points to a Mid-level role on the career ladder, despite the total years figure; the scope is first-level escalation and operational execution, not engineering leadership.

Ignored 2 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): firewall management, network routing and switching.

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