Senior Network Architect

20 hours ago

Richmond, Virginia, United States CarMax Full time
Job Title: Senior Network Engineer

CarMax is seeking a highly skilled Senior Network Engineer to join our team. As a Senior Network Engineer, you will be responsible for designing, implementing, and maintaining our organization's network architecture to ensure optimal performance, security, and scalability.

Key Responsibilities:
  • Oversee the planning and execution of network projects, providing technical leadership to the team and collaborating with cross-functional departments to meet business objectives.
  • Plan, implement, and troubleshoot enterprise multi-site Aruba campus wireless network, remote-access, and multi-tenant environment.
  • Analyze functional requirements to create a network design and implementation plan.
  • Configure and validate Aruba WLAN secure employee and guest solutions.
  • Manage and monitor Aruba solutions.
  • Support the deployment of network access control (NAC) using 802.1X with Cisco ISE/ Aruba Clearpass.
  • Design, implement, and manage complex network solutions to support business operations.
  • Responsible for safeguarding an organization's computer systems and networks from security breaches, cyber threats, and vulnerabilities.
  • Lead network architecture planning, including hardware and software upgrades.
  • Provide technical expertise in troubleshooting network issues and implementing solutions.
  • Collaborate with IT teams to ensure network security measures are in place.
  • Conduct regular network performance monitoring and optimization.
  • Mentor and train junior network engineers to enhance team capabilities.
  • Evaluate new technologies and make recommendations for network improvements.
  • Develop and maintain network documentation for reference and compliance purposes.
Requirements:
  • Proven experience as a Senior Network Engineer or similar role in a large-scale environment. Experience in the planning, design, deployment, and support of LAN/WAN/ and IP architectures.
  • In-depth knowledge of networking protocols, hardware, and software solutions, including deploying network services and protocols such as TCP/IP, OSPF, BGP, LAN Switching Technologies, Next-Gen Firewalls (Fortinet preferred), and Load Balancing (F5 preferred), etc.
  • Deep understanding of WLAN technologies, network management, including IEEE 802.11a/b/g/n/ac/ax WLAN standards and industry best practices.
  • Expert level understanding of site survey, predictive design, and post-design validation using Ekahau AI Pro, and Ekahau Sidekick.
  • Intimate knowledge of building construction, RF behavioral characteristics, and current hardware vendor limitations to create a design proposal.
  • Expert level understanding of various antenna types, their uses, and demerits.
  • Provide tier-3 operational support for Wireless LAN Controllers, resolve critical business issues that require deep wireless network troubleshooting techniques and performance analysis.
  • Independently own the Wireless Network Infrastructure support, solving complex issues and suggesting design modifications as appropriate.
  • Extensive experience in traditional route/switch, Wireless technologies, VPN, SSL, DNS, DHCP, and ISE.
  • Conduct network security assessments and recommend remediation actions. Hands-on experience with network security. Design and maintain security controls for network infrastructure. Enhance security monitoring and detection systems to identify abnormal behavior.
  • Strong leadership skills with the ability to lead projects and teams effectively.
  • Experience utilizing a public cloud solution (Azure, AWS, GCP).
  • Prior experience working with industry network tools: monitoring (Splunk, NetScout, Zabbix), management (Prime, ISE, Aruba Central), inventory management (Netbox, IPAM), and DNS solutions.
  • Scripting experience with scripting languages (python, GO, PowerShell) and tools (versioning, GitHub) as well as experience utilizing REST APIs, JSON, and YAML.
  • Experience with multiple hardware/software platforms such as:
    • Cisco
    • Fortinet
    • F5
    • NetScout
  • Strong teamwork skills, ability to learn quickly, excellent written and spoken communication.
  • Experience working with Agile methodologies.
  • Monitor and Troubleshoot network performance and integrity. Resolve escalated issues by troubleshooting both cloud and local infrastructure.
  • Automate tasks and assess their effectiveness.
Education and/or Experience:
  • 4+ years of network architecture design and/or solution engineering.
  • 2+ years of network design or administration involving cloud infrastructure [AWS, Azure, Google, etc.].
  • 2+ years of scripting or coding experience with one or more languages.
  • 8+ years of relevant IT experience in large/complex IT architecture environments.
  • 4+ Hand-on Experience of working on Aruba Wireless Technologies.
  • 4-year degree in IT related course of study.
  • Preferred Professional certifications (e.g., CCNA, CCNP, Aruba Certified Mobility Expert (ACMX) etc.).
Work Location and Arrangement:

This role can be based out of the Richmond, VA Technology Innovation Center or Plano, TX and have a Hybrid work arrangement.

Work Authorization:

Applicants must be currently authorized to work in the United States on a full-time basis. Sponsorship will be considered for this specific role.

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