Network Security Analyst

Lennox (NYSE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. At Lennox, we win as a team, aiming for excellence and delivering innovative, sustainable products and services. Our culture guides us and creates a workplace where all employees feel heard and welcomed. Lennox is a global community that values each team member’s contributions and offers a supportive environment for career development. Come, stay, and grow with us.

The Network Security Analyst position will act as a first-level escalation point for concerns involving firewall access requests, network troubleshooting, and VPN issues. This role is a full-time employment opportunity. Some weekend and/or after-hours work may be required to assist high severity security issues.

The analyst will be responsible for initial response to incidents involving client VPN and troubleshooting firewall issues., * 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.
• Assist IT teams in troubleshooting network connectivity issues involving systems, applications, and services.
• Attend meetings related to KT& troubleshooting issues, roadmap & project discussions and change control meetings.
• 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.
• Preparing escalations for the engineering team when determined a higher-level issue exist or break fix is required.

• Good understanding of malware (computer viruses, worms, spyware, ransomware, etc.) and associated risk mitigation techniques.
• Strong understanding of next generation firewall technologies; Palo Alto experience required.
• 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 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 11
• 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)
• Familiarity with industry data security, privacy, and regulatory standards. Preferred ability to lift 25lbs, To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
• 5 Years of relevant experience with 2-3 years of experience managing and configuring Palo Alto NextGen Firewalls.
• 3 years of experience working with Windows operating systems
• One or more of the following certifications is preferred: (ISC)2 SSCP, CompTIA Security+, Palo Alto PCNSA/PCNSE, SANS GSEC, or Cisco CCNP Security.
• 1-2 years of experience using ssh connectivity tools such as Putty
• Associates degree in related field or equivalent experience required.
• Excellent communication skills, both written and verbal required.
• Some experience working in environments that have Change Control processes
• Self-starter and able to work with minimal supervision.
• Ability to work individually and as part of a team.
• Ability to be flexible and work after business hours to support IT changes or troubleshoot issues
• Ability to work in the office 5 days a week
• Willingness to learn new technologies and platforms in the IT Security space