Network Administrator

First-Horizon-Bank; United States; On-site; USD 90,000 - 130,000; Full time

Job summary

First-Horizon-Bank is seeking a skilled Network Administrator to support our enterprise network infrastructure. You will handle escalations, lead incident response, and drive continuous improvement across global network operations.

The role requires hands-on experience with F5 BIG-IP, Cisco routing/switching, and HPE Aruba, plus scripting for automation and strong documentation discipline.

Qualifications

• Experience managing complex enterprise networks and solving problems under pressure.
• Strong ability to document network configurations and incident resolutions.
• Proven track record of collaborating with cross-functional teams to drive initiatives.

Responsibilities

• Respond to incidents, perform root-cause analysis, and drive resolution.
• Monitor and maintain global network infrastructure, perform upgrades and config changes.
• Configure and manage F5 BIG-IP platforms (LTM, GTM, ASM) and iRules/iApps where applicable.
• Work with Cisco Route/Switch devices, understand BGP/OSPF/EIGRP, VLANs, STP, NAT.
• Create comprehensive network documentation, runbooks, and SOPs.

Skills

Incident & Problem Management

Network Operations & Maintenance

Automation & Scripting

Documentation & SOPs

Cross-functional Collaboration

On-Call Support

Communication Skills

Teamwork

Education

CCNP Enterprise

CCNP Data Center

F5-CA

ACSA

ACDA

Tools

F5 BIG-IP

Cisco IOS/IOS-XE/NX-OS

HPE Aruba

Job description

We are seeking a highly skilled and motivated Network Administrator to join our dynamic team. The ideal candidate will possess exceptional problem-solving abilities and a strong background working in complex network infrastructures. This role is crucial for ensuring the stability, performance, and security of our enterprise network. The successful candidate will be a key contributor to our operations team, handling escalations, leading incident response, and driving continuous improvement.

Responsibilities

• Incident and Problem Management: Investigation and resolution of complex network problems, including performance degradation, outages, and security incidents.
• NetworkOperations & Maintenance:Proactively monitor, maintain, and troubleshoot our globalnetworkinfrastructure. Perform routine maintenance, software upgrades, and configuration changes onnetworkdevices to ensure optimal performance and reliability.
• Technical Expertise:
  • F5 BIG-IP: Configure and manage F5 BIG-IP platforms, including LTM (Local Traffic Manager), GTM (Global Traffic Manager), and ASM (Application Security Manager). Experience with iRules and iApps development is highly desirable.
  • Cisco Route/Switch: Hands-on experience with Cisco IOS, IOS-XE, and NX-OS. Understanding of routing protocols (BGP, OSPF, EIGRP), switching technologies (VLANs, STP, VTP), and network security features (ACLs, NAT).
  • HPE Aruba:Configure, deploy, and manage HPE Aruba wireless and switching solutions. Experience with Aruba Mobility Controllers, AirWave, and ClearPass Policy Manager is essential.
• Automation & Scripting:Drivenetworkautomation efforts using scripting languages (e.g., Python, Ansible) to streamline operational tasks and improve efficiency.
• Documentation:Create and maintain comprehensivenetworkdocumentation, including diagrams, runbooks, and standard operating procedures (SOPs).
• Collaboration:Work closely with cross-functional teams, including systems, security, and application development, to support business initiatives and resolve inter-departmental issues.
• On-Call Support:Participate in an on-call rotation to provide 24/7 support for criticalnetworkissues.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.
• Minimum of 5-7 years of experience, with at least 2-3 years in an operations role.
• Certifications:Professional-level certifications from vendors such as Cisco (e.g., CCNP Enterprise, CCNP Data Center), F5 (e.g., F5-CA), or HPE Aruba (e.g., ACSA, ACDA) are highly preferred.
• Problem-Solving Skills:Proven track record of strong analytical and problem-solving skills with the ability to quickly diagnose and resolve complexnetworkissues under pressure.
• Communication:Excellent verbal and written communication skills with the ability to explain complex technical concepts to both technical and non-technical audiences.
• Teamwork:Ability to work independently and as part of a team in a fast-paced, collaborative environment.