Lennox ยท 1 day ago
Network Security Analyst
Richardson, TX
Full-time
Onsite
Entry, Mid Level
$75K/yr - $100K/yr
2+ years expLennox is a global leader in HVAC and refrigeration solutions, committed to innovation and sustainability. The Network Security Analyst will act as a first-level escalation point for firewall access requests, network troubleshooting, and VPN issues, ensuring optimal operation of network security systems.
Consumer GoodsElectronicsHeating Ventilation and Air Conditioning (HVAC)Innovation Management
Responsibilities
Design and implement approved firewall change requests in accordance with established guidelines
Perform operational checks of the firewalls to ensure optimal operation
Conduct periodic review of firewall policies to identify and remove any unused, duplicate, or expired objects and/or rules through change management
Troubleshoot network connectivity issues involving systems, applications, and services
Initiate the RMA of faulty firewall equipment
Work closely with the security engineering team to implement security enhancements and/or mitigate identified security gaps
Assist with firewall updates, and operating system upgrades
Assist with troubleshooting client VPN connectivity issues
Qualification
Required
2 to 3 years of experience administering enterprise class NextGen firewalls
1 to 3 years of experience working with Windows and Linux systems
Associates degree in related field or equivalent experience required
Basic understanding of malware (computer viruses, worms, spyware, ransomware, etc.) and associated risk mitigation techniques
Strong understanding of next generation firewall technologies; Palo Alto experience preferred
Strong understanding of the uses and associated cyber security risks of well-known network ports and protocols such as SSL, HTTP, DNS, SMTP, FTP, SSH, IPsec, etc
Understanding of threat mitigation profiles and configuration in next generation firewalls
Strong intrusion detection / prevention system (IDS/IPS) knowledge
Ability to interpret and understand firewall traffic and threat logs
Ability to troubleshoot network connectivity and application problems
Strong understanding of computer network routing and switching fundamentals
Familiarity of Windows Server 2008/2012/2019 and Windows 10
Familiarity of the Linux operating system
Familiarity of current threats and trends in Cyber Security
Basic understanding of cyber security frameworks (e.g., NIST, zero trust)
Preferred
One or more of the following certifications is preferred: (ISC)2 SSCP, CompTIA Security+, Palo Alto PCNSA/PCNSE, SANS GSEC, or Cisco CCNP Security
Benefits
Tuition reimbursement
Medical, dental, and vision insurance
Prescription drug coverage
401(k) retirement plan
Short-term disability insurance
8 weeks paid birthing leave
2 weeks paid bonding leave
Life and long-term disability insurance
12 days paid time off
2 paid well-being days
1 paid volunteer day
12 paid holidays
3 floating holidays per year
Company
Lennox
Lennox (NYSE: LII) is a leading provider of innovative climate control solutions for heating, ventilation, air conditioning, and refrigeration (HVACR) markets.
10001+ employees
H1B Sponsorship
Lennox has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (43)
2024 (41)
2023 (44)
2022 (49)
2021 (31)
2020 (37)
Funding
Current Stage
Public CompanyTotal Funding
unknown1999-07-29IPO
Leadership Team
John Torres
Executive VP, Chief Legal Officer & Secretary
Beth West
HR Business Partner
Recent News
PR Newswire
2025-10-22
Company data provided by crunchbase