Sr. Network Administrator

Job description

Oversees advanced LAN/WAN infrastructure management with responsibility for core switching, load balancing, network access control, DNS and DHCP administration, disaster recovery configurations, and documentation.

Provides senior-level expertise to ensure high availability, security, and performance of enterprise networks, while guiding improvements through planning, implementation, and evaluation of network enhancements.

**Responsibilities:**
**Network Maintenance & Operations**
• Define and maintain advanced network specifications by collaborating with users to analyze workflow, access, information, and security requirements.
• Administer and configure routers, interfaces, routing protocols, and core switching for disaster recovery environments.
• Manage DNS and DHCP setup, configuration, and administration.
• Configure and support load balancing technologies, including F5 LTM and global load balancing solutions.
• Implement and manage network access control (NAC) technologies.
• Ensure optimal performance by monitoring and tuning availability, utilization, throughput, and latency.
• Troubleshoot and resolve advanced network problems; escalate issues to vendors as needed.
• Implement and maintain security protocols, monitoring tools, and evaluation methods to safeguard systems and data.
• Collaborate with vendors to test, deploy, and enhance network systems.
• Provide technical training, references, and support to users as required.
• Manage projects and service requests through established ticketing systems and workflows.

**Fiscal & Strategic Responsibility**
• Support financial objectives by monitoring expenses and contributing to network budget planning.
• Accept ownership of new initiatives and seek opportunities to enhance organizational value.

**Documentation & Training**
• Maintain detailed documentation of tasks, configurations, and issue resolutions.
• Support ongoing documentation of network architecture and integration with other systems.
• Deliver or assist with training efforts to promote knowledge sharing across the IT team.

**Professional Development**
• Maintain current expertise by participating in training, professional organizations, and continued study of emerging technologies.
• Stay current with Cisco datacenter and campus networking platforms, as well as broader industry best practices.

**General & Miscellaneous**
• Maintain confidentiality and protect organizational information.
• Attend meetings and participate in committees as requested.
• Ensure reliable attendance, including required after-hours work.
• Perform other duties and special assignments as needed.

Ensure regular, reliable attendance and fulfill after-hours duties as required.

**Qualifications**

**Education & Certifications**

+ **High school diploma required**
+ **Bachelor’s degree required (in Computer Science, Information Technology, or related field preferred)**
+ **Cisco CCNA: Routing & Switching strongly preferred**
+ **Cisco CCNP Routing & Switching strongly preferred.**

**Experience:**

+ **4-6 years of hands-on experience in network administration and support**

**Knowledge of:**
**• LAN/WAN technologies including TCP/IP, MPLS, VPN, and BGP.**
**• Network performance tuning and troubleshooting.

Cisco IOS and NXOS platforms.**
**• Cisco Datacenter technologies (Nexus 7K/9K, vPC, FEX).**
**• Cisco Routed Campus platforms (Catalyst 9500/9300).**
**• Layer 3 Access configuration and maintenance.**
**• F5 LTM configuration, including Virtual Servers, Nodes, and Pools.**
**• Global load balancing solutions.**
**• Network Access Control (NAC) technologies.**
**• DHCP and DNS configuration, setup, and maintenance.**
**• Emerging networking technologies and trends.**

**Skills & Abilities**
**• Evaluate critical systems, prioritize workflows, and develop effective solutions.**
**• Apply creativity and latitude in solving complex networking issues.**
**• Interpret and apply relevant laws, regulations, and policies.**
**• Communicate effectively in both written and verbal form.**
**• Provide advanced technical troubleshooting and assistance.**
**• Read and interpret technical documentation and manuals.**
**• Build and maintain strong working relationships with peers, supervisors, and users.**
**• Work independently or collaboratively, with flexibility for evenings and weekends.**
**• Perform extended work at a computer terminal.**

**PHYSICAL DEMANDS**
**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 stand; walk; sit; use hands to finger, handle, or feel; reach with hands and arms; and talk or hear.

The employee must regularly lift and/or move up to 25 pounds and occasionally lift and/or move up to 100 pounds.

The employee must be physically fit with the ability to stand on ladders for extended period of times.

Specific vision abilities required by this job include close vision, color vision, and ability to adjust focus**

**WORK ENVIRONMENTAL CONDITIONS**
**The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job.

No hazardous or significantly unpleasant conditions.

(Such as in a typical office).

The noise level in the work environment is usually moderate.**

Required Skill Profession

Other General