Network Administrator

Job Description

Job Description

This is an on-site, in-office position based in Sioux Falls, South Dakota.

Position Summary:

The Network Administrator is responsible for the administration, maintenance, monitoring, and support of the bank’s enterprise network infrastructure, ensuring secure, reliable, and efficient connectivity across branches, operations centers, ATMs, and cloud-connected environments. This role supports the performance and availability of critical banking systems through network administration, troubleshooting, system maintenance, vendor coordination, and implementation of approved infrastructure initiatives.

The Network Administrator also supports the bank’s cybersecurity, compliance, and operational resilience programs by maintaining network security controls, assisting with vulnerability remediation and incident response activities, and ensuring adherence to regulatory and internal standards. The position provides hands-on support for network hardware, telecommunications equipment, structured cabling, and branch infrastructure while maintaining accurate documentation and contributing to technology initiatives that support the bank’s operational goals.

In addition, our FIRST Values apply to all teammates without exception.

FIRST Values

• Family – We support, trust, and respect each other, our customers, and our shareholders.
• Independence & Innovation – We embrace change as vital to our success.
• Relationships – We build relationships that are based on strong character, mutual loyalty, trust, and respect.
• Stewardship – We take care of ourselves so we can take care of others.
• Teamwork – We help each other grow and succeed.

Who we are:

The First National Bank in Sioux Falls began its long-term commitment to the Sioux Falls area in 1885. The oldest bank in Sioux Falls owes its longevity to a combination of service, stability, innovation, and family involvement. Over the past 140 years, The First National Bank in Sioux Falls has worked diligently to promote the growth and vitality of our city and the surrounding area. The Bank strives to continually be recognized as a community leader by reinvesting financial resources back into the communities it serves and encouraging active employee involvement in community volunteer organizations.

The First National Bank Way, which is a blend of our Mission Statement and FIRST Values, serves as the foundation of our culture. It is a gift that has been passed down to us and is the legacy that we will protect and preserve. Nothing is more important to us – it is the cornerstone of our success.

Our culture is driven by integrity, service, and strong values; nothing has shaped it more than our FIRST Values.

Our FIRST Values are not just words; they are truly felt by our employees, customers, shareholders, and communities. They tell us who we are as a business and guide our behaviors and decisions as we move forward and build successful relationships.

Although banking has evolved over the years, our mission and values have not and will not change.

What will you do:

Accountabilities

Operational Support and Process Execution

Provide consistent day-to-day operational support for network infrastructure while ensuring adherence to established standards, procedures, and security controls.

• Maintain network documentation, procedures, inventory records, and operational tracking systems.
• Perform physical troubleshooting and replacement of network equipment and cabling to restore service and maintain uptime.
• Assist with network performance tuning, capacity monitoring, and troubleshooting connectivity issues.
• Monitor network performance, alerts, and logs to ensure uptime and service reliability.
• Provide first and second-level troubleshooting for network connectivity, VPN, wireless, and branch connectivity issues.
• Coordinate with vendors, carriers, managed service providers, and telecommunications partners for service requests and escalations.
• Assist with audit, compliance, risk management, and reporting activities by maintaining accurate operational records and evidence.
• Support change management processes by implementing approved network changes and updates.

Network Administration

Administer, maintain, and support the Bank’s enterprise network infrastructure to ensure secure, reliable, and scalable network services while supporting infrastructure enhancement, lifecycle management, and technology initiatives.

• Administer and support LAN/WAN, SD-WAN, wireless, VPN, and branch network connectivity environments.
• Configure and maintain routers, switches, firewalls, and wireless infrastructure.
• Support network hardware, software, firmware updates, and lifecycle management.
• Support implementation of infrastructure projects led by senior engineering staff.
• Maintain network diagrams, configuration records, and technical documentation.
• Support connectivity and troubleshooting for branch infrastructure systems, including ATMs and other network-connected banking devices, in coordination with vendors and internal teams.
• Install, terminate, and maintain structured cabling infrastructure, including Ethernet and fiber connections, patch panels, switches, and network racks across branch and core environments.

Security, Compliance, and Operational Resilience

Responsible for maintaining secure and resilient operations through implementation of cybersecurity controls, regulatory compliance standards, disaster recovery preparedness, and proactive operational monitoring.

• Support implementation of network security controls, segmentation standards, and access policies.
• Assist with vulnerability remediation, patching, and firmware updates for network infrastructure.
• Monitor security alerts and escalate incidents according to defined procedures.
• Support disaster recovery, business continuity testing, and incident response activities.
• Maintain compliance with regulatory expectations, internal controls, and security standards relevant to financial institutions.
• Maintain system availability by proactively identifying and escalating risks to senior engineering staff.

Qualifications

• Associate or bachelor’s degree in information technology, Computer Science, or related field preferred; equivalent combination of education and experience may be considered.
• Two or more years of experience in network administration, IT support, or infrastructure operations preferred.
• Experience supporting enterprise network environments in multi-site organizations preferred.
• Familiarity with routers, switches, firewalls, wireless systems, VPNs, and basic network monitoring tools.
• Understanding of TCP/IP networking, VLANs, DNS, DHCP, and basic routing/switching concepts.
• Exposure to vendor coordination and telecommunications support preferred.
• Industry certifications such as CompTIA Network+, CCNA, or equivalent preferred.
• Preferred experience supporting audio/video conferencing equipment and VoIP platforms, such as Zoom Phone.

Skills and Abilities

• Ability to prioritize and respond to multiple operational support requests in a timely manner.
• Strong troubleshooting and problem-solving skills in network and connectivity environments.
• Ability to communicate clearly with technical and non-technical staff.
• Ability to follow documented procedures and adhere to established standards and controls.
• Ability to maintain accurate documentation, logs, and configuration records.
• Understanding of cybersecurity best practices and awareness of regulated industry requirements.
• Ability to work collaboratively with infrastructure, cybersecurity, systems, and support teams.
• Willingness to participate in after-hours support, maintenance windows, and incident response as needed.
• Strong attention to detail, reliability, and commitment to operational stability.

What’s in it for you?

• Health Insurance
• Dental & Vision Insurance
• Profit Sharing
• Paid Vacation & Holidays
• Company paid short and long term disability
• Tuition Reimbursement Program
• Employee Banking Perks
• Community Volunteer time
• And More!