Network Engineer / Architect, Sr

Req #:  12542
Division: Lennox International
Travel Involved: 20%
Job Type: Full Time
Job Level:  Senior
Education: Bachelors Degree 
Category: Information Technology
Benefits: Lennox International offers an excellent salary and benefits package including competitive retirement plans. Our health benefits include medical, dental and vision insurance. Lennox International also offers employees basic life and AD&D insurance, a scholarship program and employee tuition reimbursement.

NO PHONE CALLS PLEASE. Lennox International Inc. and its subsidiaries are fully committed to Equal Employment Opportunity and to attracting, retaining, developing and promoting the most qualified employees without regard to their race, creed, color, sex, sexual orientation, age, national origin, religion, disability, genetics, veteran's status, or any other category protected under federal, state or local law.
Company Information:
Innovate your career.

When you choose Lennox International, you know you're getting the best.

That is why when you work at Lennox International, you know you are among the best.

As a leading innovator of home and commercial, heating, cooling, refrigeration, air-quality, and related services, Lennox International is committed to helping our people innovate our products and their careers.

Join nearly 10,000 employees worldwide who build our heritage of integrity and innovation. At Lennox International, we make your home, your businesses, and your work, a better place.
Job Description:
Responsible for the architecture and design of the enterprise voice and data network, the technology roadmap and should be an esteemed expert in a variety of converged network solutions.

Engineer, develop, and implement data and voice network solutions for the enterprise. Technical leader for enterprise architecture planning and integration. Analyzes service portfolio, network usage and network performance to optimize services and track adherence to SLAs. Makes decisions regarding technology selections for proactive, corrective and analytical diagnostic tools that are used locally, regionally and globally as a corporate standard. Implements WAN optimization solutions across LII global network stays educated on emerging technologies in this area. Implements and address single points of failure within LAN/WAN infrastructure. Identify areas of network inefficiency and make recommendations for improvement. Install, support and configure Cisco routers and switches and telephony infrastructure in a Production environment. Establish VoIP strategy that leverages existing voice infrastructure. Evaluate new network technology. Assist with the planning and design of future network architecture. Develop and maintain documentation related to network architecture, processes and support.

Bachelor's or master's degree in Computer Science, a related field or equivalent experience. Minimum of 12 years progressively responsible network/voice administration and engineering experience including at least 8 years involving network engineering experience.

Requires expert knowledge of LAN/WAN systems, networks, and applications. Experienced with a wide range of software and hardware diagnostic tools. Extensive knowledge of network components, relationships and configuration. Must be able to design and implement the most complex networks. Knows and understands information technology industry trends and emerging technologies and shows an ability to relate them to the company and its objectives. Solid analytical, interpersonal and communication skills required. Must be expert at leading team projects.


The Sr. Network Architect responsible for the architecture and design of the global data network.  The Sr. Network Architect also performs deployment and implementation activities for our business customers by developing plans and system designs to support business needs. The candidate will be the senior leader of network design and architecture for the enterprise and is expected to be very knowledgeable in MPLS, BGP, VoIP technologies as well as Cisco routers, switches, firewalls, wireless topology and network performance monitoring and analysis and wiring strategies.  This position is responsible for the design and support of the local and wide area network and is an integral contributor to the overall network strategy for LII. The candidate will be expected to advise the team on networking hardware selections and standards including network architecture and optimization methodologies and strategies.



  • Engineer, develop, and implement data network solutions for the global enterprise;
  • Leads enterprise data architecture planning and integration;
  • Analyzes service portfolio, network usage and network performance to optimize services and track adherence to SLAs;
  • Performs deep dive network analysis (proactive and reactive) through use of software/hardware diagnostic tools, problem diagnosing and network recovery processes;
  • Implementation and use of Network and System Monitoring tools e.g. Fluke Virtual Networks monitoring tools, Optiview XP and Time Machine and others;
  • Implement WAN optimization solutions across LII’s wide area network e.g. Riverbed; stay educated on emerging technologies in this area.
  • Implement and address single points of failure within LAN/WAN infrastructure;
  • Identify areas of network inefficiency and make recommendations for improvement;
  • Install, support and configure Cisco routers and switches, Aruba wireless access points and Riverbed Steelheads and Blue Coat devices in a Production environment;
  • Proactively monitor, evaluate, and solve network (including Palo Alto firewall and intrusion protection IPSEC/SSL VPN devices) and the Cisco and Avaya PBX environments (eg. VoIP);
  • Collaborate with voice architect to develop converged network strategy that leverages existing voice infrastructure or replaces it with future state technology platforms or hosted solutions;
  • Evaluate new network technology. Assist with the planning and design of future network architecture;
  • Develop and maintain documentation related to network architecture, processes and support;
  • Work closely with server support teams to deploy and support proprietary applications.




1.    First-rate customer service skills.

2.    Proven analytical and problem-solving abilities.

3.    Excellent communication and interpersonal skills.

4.    Proven track record of enterprise solution design and implementation.

5.    Ability to manage projects with a varied level of complexity.

6.    Ability to work on multiple tasks in a deadline driven environment.

7.    Ability to remain calm and professional at busy times and when dealing with challenging customers.

8.    Ability to find solutions within a diverse global IT environment.

9.    Passion for teamwork, career growth, and knowledge sharing.

10.  Ability to adapt quickly to change.



This job has no direct supervisory responsibilities.



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 accommodations may be made to enable individuals with disabilities to perform the essential functions.

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o    Demonstrated progressive experience in enterprise design and implementation.

o    Working as a team member with technical corporate engineering team.

o    Familiarity with ITIL concepts, specifically in the area of service delivery preferred.

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o    Bachelor’s degree in Computer Science, Information Technology, related discipline or equivalent experience required;

o    Minimum 8+ years of IT experience with responsibility for network engineering and operational activities;

o    Solid knowledge of industry practices and technical systems and a solid understanding of the potential user of technology solutions in a business environment;

o    Strong verbal, written and presentation skills with the ability to effectively interact with internal and external business partners;

o    This individual must have a working knowledge of Networking Principles including (but not limited to) routing (BGP/OSPF), WAN (MPLS/DS1-3/OC3), LAN (Catalyst Switches/VLANs/SpanningTree), Firewall (Cisco/Checkpoint), SSL VPN (Juniper) and load balancing (CSS), wireless configurations (Aruba), general data security principles & best practice disaster recovery experience.

o    Solid background with Cisco routers, switches, layered DWDM and MPLS with global experience to understand tariffs and other international issues.

o    Expert knowledge of a variety of network management tools, test equipment, circuits and extensive knowledge of TCP/IP protocol stack, firewall security and intrusion protection devices in an inter-networking environment.


·         Former Network (MPLS) Sr. Network Engineer and/or Architect role preferred.

·         Industry certifications required – CCNA, CCIE or other related certification



Some travel (< 25%) is required for this position including some weekend travel during technology upgrades.

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1.    Strong written and verbal skills necessary to complete assigned tasks. 

2.    Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals. 

3.    Ability to write routine reports and correspondence. 

4.    Ability to speak effectively before groups of customers or employees of organization.



1.    Ability to interpret statistical graphs and trends.

2.    Ability to create a justification for technology spend such as a ROI.



1.    Ability to solve practical problems and deal with a variety of concrete variables in situations where only limited standardization exists.

2.    Ability to interpret a variety of instructions furnished in written, oral, diagram, or schedule form.

3.    Ability to determine the most effective solution for the enterprise with a global perspective.




·         Need to be proficient in workstation, server, network, and voice enterprise designs, products and standards.

·         Need to understand internal components of technology.

·         Need to be proficient with overall technology topology (ie. network, server, storage, etc.)




The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.


While performing the duties of this Job, the employee is regularly required to sit; use hands to finger, handle, or feel; reach with hands and arms and talk or hear. The employee is occasionally required to stand; walk; drive, climb, balance, stoop, kneel, crouch, or crawl. The employee must occasionally lift and/or move up to 30 pounds.



The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.


The noise level in the work environment is usually quiet. The employee will be required to work long hours as needed.



The position described above is a general outline of the job's responsibilities and requirements.  The duties may increase or decrease at any time at the discretion of management.

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Lennox International is an Equal Opportunity Employer and supports a diverse, inclusive work environment.

All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

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