Sr Network Engineer

Lennar; Miami (FL); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid parental leave

Education assistance

Adoption assistance

Vacation and holidays

Referral bonus

Home purchase discounts

Job summary

Lennar is seeking a Sr. Network Engineer to design, deploy, and operate a large enterprise network. You will lead automation efforts, participate in security and design reviews, and support WAN/LAN infrastructure across sites with a focus on uptime and performance.

The role requires 5+ years of experience, a relevant bachelor's degree, and familiarity with SD-WAN, F5, Palo Alto, and Cisco systems. Collaboration with Architects and IT teams is essential.

Qualifications

• Bachelor's degree in CS/IT/Engineering or equivalent experience.
• 5+ years of relevant work experience.
• Certifications such as ITIL or Cisco CCNP preferred but not required.

Responsibilities

• Design, deploy, manage and operate enterprise network infrastructure.
• Lead day-to-day operations and automation initiatives.
• Support WAN, LAN, security, and data center networking.
• Collaborate with Enterprise Security Office and architecture teams.

Skills

Interpersonal skills

Communication skills

Organizational skills

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

GitHub

HashiCorp

Python

Terraform

Ansible

F5

Palo Alto SD-WAN

Prisma SD-WAN

Cisco Meraki

Catalyst/Nexus switches

MPLS

Cisco routers

Job description

Sr. Network Engineer

The Sr. Network Engineer partners with other engineering teams and Enterprise Architects to design, deploy, manage, and operate a large enterprise network. The infrastructure consists of a mix of network switches, routers, wireless access points, firewalls, load balancers and cloud network/application services. The Sr. Network Engineer operates and maintains some or all these components while ensuring an uptime of 99.9%. This position will play a lead role supporting projects, enhancing automation, performing technology evaluations, deploying Network technologies, and will be tasked with the day-to-day operation of Lennar network infrastructure. In addition, this role will participate on process improvement, operational excellence, AI transformation, design, and standardization.

Your Responsibilities

• Provides Tier 3 engineering support during critical operational incidents as necessary.
• Maintains current network infrastructure and leverages the manufacturer for advanced support.
• Maintains high network availability for redundancy and resilience.
• Understands and accounts for peak load; manages peak load events.
• Follows industry best practices, and Standard Operating Procedures (SOPs) for operational efficiency.
• Optimizes, implements and monitors network performance.
• Maintains and reacts to Enterprise-grade network monitoring system.
• Works with automation tools and platforms such as GitHub, HashiCorp, and coding languages like Python, Terraform, Ansible to build automation workflows and increase efficiency.
• Supports the deployment of network equipment for new office build outs.
• Oversees the order and deployment of WAN circuits, including MPLS, DIA, Broadbands, VPN's and point-to-point circuits.
• Supports the LAN wired and wireless infrastructure.
• Deploys, operates and maintains F5 load balancing LTM and APM modules.
• Works closely with Enterprise Security Office to implement reliable, manageable, and secure solutions that meet Network/Security Industry standards.
• Assists in the deployment of Palo Alto SD-WAN and SASE (Prisma SD-WAN).
• Performs security audits of the network system and improves the security posture.
• Assists with disaster recovery setups, both on a global and site‑by‑site basis.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, Telecommunications, Engineering or related field; or equivalent work experience.
• Certifications such as ITIL, Cisco CCNP, or similar are preferred but not required.
• 5+ years relevant work experience.

Physical & Office/Site Presence Requirements

This is primarily a sedentary office position which requires the incumbent to have the ability to operate computer equipment, speak, hear, bend, stoop, reach, lift, and move and carry up to 25 lbs. Finger dexterity is necessary. 10-20% of travel is required.

Additional Requirements

• Knowledge of SDWAN technologies
• Expert with F5 products
• Must be self‑motivated with strong interpersonal, communication, presentation, and organizational skills.
• The ability to work effectively with clients, management, and staff members in a multi‑tiered, fast‑paced environment.
• Experience working in previous large Enterprise Network Engineering role desired.
• Ability to translate technical recommendations into a visual format for presentation to non‑technical stakeholders.
• Experience with automation tools and CI/CD principles.
• Proficient with Palo Alto SD‑WAN and SASE (Prisma SD‑WAN).
• Expert with Cisco Meraki Networks, Catalyst and Nexus network switches, F5 load balancers LTM and APM products, Cisco ISR and ASR routers.
• Knowledge of IP fundamentals, DNS, DHCP, and IPv4/IPv6.
• Knowledge and expertise in Wireless LAN technologies.
• Must demonstrate in-depth understanding of the OSI model.
• Demonstrable knowledge in the design, implementation, troubleshooting and operations of data center technologies.
• Firm understanding of operating systems, virtualization, network services for cloud enablement, and security.
• Consistently able to solve connectivity problems to increase bandwidth, improve response times, maximize performance, and support global operations.
• Extensive skills in WAN related architectures and technologies important to enterprises, such as MPLS, hybrid environments connectivity, IPsec and emerging technologies.

Life at Lennar

At Lennar, we are committed to fostering a supportive and enriching environment for our Associates, offering a comprehensive array of benefits designed to enhance their well‑being and professional growth.

• Robust health insurance plans, including Medical, Dental, and Vision coverage.
• 401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%.
• Paid Parental Leave.
• Associate Assistance Plan.
• Education Assistance Program.
• Up to $30,000 in Adoption Assistance.
• Up to three weeks of vacation annually.
• Generous Holiday, Sick Leave, and Personal Day policies.
• New Hire Referral Bonus Program.
• Significant Home Purchase Discounts.
• Everyone’s Included Day.

Work Where Everyone’s Included

We’re committed to building and sustaining an inclusive culture where everyone has a seat at the table, and we’re all on a first‑name basis. This inclusive culture influences our hiring practices, the communities we serve and how we build better career experiences for all our Associates. It’s why we created our Everyone’s Included Advisory Council, and we’d love for you to be a part of our shared journey.

Join Our Talent Network: Welcome to the Lennar Community! We are tickled, delighted and happy that you've decided to join our Talent Community! We look forward to connecting about career opportunities at Lennar.

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Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. We’re Always Looking Ahead Want to work in an innovative environment that empowers you to explore your passions? At Lennar, we promote asking questions and working together to solve complex problems. It’s how we’ve become a leader in the homebuilding industry and why our Associates love working here. If you’re interested in helping people find their future homes and, in doing so, build a better future for themselves, then Lennar is the place for you.