Sr Analyst – Network Data Infrastructure

Company Profile

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.

We’re looking for a Sr Analyst – Network Data Infrastructure to manage and optimize enterprise network systems. The ideal candidate will have deep expertise in designing, implementing, and maintaining robust data networks—including LAN, WAN, SD‑WAN, dynamic routing, Aruba wireless, and Cisco solutions. This role is key to resolving complex issues, ensuring seamless performance, and maintaining strong security and vulnerability management across the infrastructure.

• Design, deploy, and maintain LAN, WAN, SD‑WAN & Wireless networks using Cisco and Aruba technologies
• Configure and support dynamic routing protocols (OSPF, EIGRP, BGP)
• Administer and optimize Aruba wireless networks for seamless connectivity
• Troubleshoot and resolve wireless performance issues
• Perform root cause analysis and resolve complex network incidents within SLAs
• Act as the primary escalation point for network issues
• Collaborate with cross‑functional teams to minimize downtime
• Monitor and manage network vulnerabilities in line with industry standards
• Apply patches and updates to secure infrastructure
• Analyze network performance and implement efficiency improvements
• Ensure compliance with QoS standards
• Maintain detailed documentation of network configurations and incident resolutions
• Provide regular reports on network performance, vulnerabilities, and incident trends

• Bachelor’s degree in Computer Science, IT, or related field (relevant certifications may substitute).
• Expertise in Cisco switches, routers, wireless and SD‑WAN
• Proficient in dynamic routing protocols like OSPF, EIGRP, BGP
• Strong knowledge of Aruba wireless solutions
• Experience with vulnerability scanning tools (Rapid 7, Nessus, Qualys)
• Familiarity with network monitoring tools (Solar Winds, PRTG, Fluke)
• Network Automation
• Key Competencies
  • Deep understanding of network and security best practices
  • Proactive approach to issue resolution and vulnerability management
  • Ability to lead during major incidents
  • Commitment to continuous learning and technology adoption
• Certifications (Preferred)
  • Cisco Certified Network Professional (CCNP)
  • Aruba Certified Mobility Associate (ACMA)
  • Aruba Certified SD‑WAN Deployment Professional (ACSDP)
• Soft Skills
  • Strong problem‑solving and analytical abilities
  • Excellent communication and interpersonal skills
  • Ability to work independently and collaboratively