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Network Infrastructure System Administration Jobs

Numentica LLC

Infrastructure/System Engineer

Torrance, CA · On-site

$111K - $146K/yr

... systems administration. This individual will work closely with Infrastructure, Network, Security, Identity, and Service Desk teams to deliver secure, scalable, and reliable IT solutions. Key ...

Numentica LLC

Infrastructure/System Engineer

Torrance, CA · On-site

$10 - $38/hr

... systems administration. This individual will work closely with Infrastructure, Network, Security, Identity, and Service Desk teams to deliver secure, scalable, and reliable IT solutions. Key ...

Bowhead

Network Infrastructure Engineer

King George, VA · On-site

$80K - $125K/yr

Overview Network Infrastructure Engineer (VDEPT) Bowhead is seeking a Network Infrastructure ... Automate system administration tasks using scripting languages: PowerShell, Ansible, Bash, and ...

Bowhead

Network Infrastructure Engineer

King George, VA · On-site

$80K - $125K/yr

Overview Network Infrastructure Engineer (VDEPT) Bowhead is seeking a Network Infrastructure ... Automate system administration tasks using scripting languages: PowerShell, Ansible, Bash, and ...

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Network Infrastructure System Administration information

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$44K

$83.1K

$119K

How much do network infrastructure system administration jobs pay per year?

As of Sep 10, 2026, the average yearly pay for network infrastructure system administration in the United States is $83,055.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $94,500.00 per year, depending on experience, location, and employer.

What are popular job titles related to Network Infrastructure System Administration jobs?

For Network Infrastructure System Administration jobs, the most frequently searched job titles are:

Network & Infrastructure Engineer

Sioux Falls, SD • On-site

First National Bank
See more jobs at First National Bankexternal

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 12 days ago

First National Bank rating

7.9

Company rating: 7.9 out of 10

Based on 70 frontline employees who took The Breakroom Quiz

Job description

Who we are
Performance Data Center provides IT support for three chartered community banks. We are a family-owned bank committed to providing exceptional service and innovative banking solutions while making a difference in the communities we serve. We take great pride in the relationships we built and the lives we impact. We offer the strength of a big bank combined with local decision-making and hometown involvement, setting our community bank apart from the rest.
Our mission
Our mission is to support the financial goals of individuals and businesses in the communities we call home by offering every person a better banking experience.
Our values
  • Passion: We have an unrelenting drive to be great. Quality service is our #1 priority.
  • Commitment: We do not shy away from accountability. We together as a team and embrace the spirit of service.
  • Leadership: We are competitive leaders in our markets and a go-to source for finance and lending.
  • Community: We're proud to support each other and our local communities. We win when our customers win.

To learn more about us, visit www.firstnationalbanks.bank
About the role
Responsible for the administration, maintenance, and optimization of the organization's network and infrastructure environment. This role focuses on ensuring the stability, security, and performance of network systems across data center and client banking environments. Primary responsibilities include managing network connectivity, monitoring performance, maintaining firewall and switching infrastructure, and supporting operational improvements to minimize downtime and enhance system reliability. Provides support for server infrastructure as needed and ensures alignment with regulatory and security requirements.
This position can be located in Sioux Falls or Pierre, SD.
What you will do
  • Administers and maintains network infrastructure including firewalls, switches, routers, and wireless systems.
  • Monitors network performance, availability, and capacity; identifies and resolves performance issues.
  • Performs routine maintenance, updates, and configuration changes to ensure system stability.
  • Troubleshoots network connectivity issues and restores service in a timely manner.
  • Maintains and updates firewall rules, VPN connectivity, and access controls.
  • Proactively identifies opportunities to improve network performance and reliability.
  • Monitors bandwidth utilization, latency, and network health to prevent disruptions.
  • Supports redundancy and failover processes to ensure continued service availability.
  • Maintains accurate network documentation, diagrams, and configuration records.
  • Follows and contributes to change management and incident response processes.
  • Assists with audit requests and provides documentation for network-related controls.
  • Supports server and infrastructure systems as needed, particularly where network dependencies exist.
  • Assists with patching, updates, and system maintenance impacting connectivity or performance.
  • Supports enforcement of network security policies and standards.
  • Participates in vulnerability remediation and monitoring activities related to network systems.

What you will need
  • Bachelor's degree in Computer Science or related field preferred.
  • 5+ years of experience in system administration and network operations.
  • In-depth knowledge of data backup and recovery techniques and tools.
  • Strong technical skills in server and network infrastructure including, but not limited to, Microsoft Operating Systems, UNIX, Linux, Unisys, MCP, Fiserv Applications, and other proprietary banking platforms.

What we offer
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Paid Vacation, Sick, and Holiday time
  • A competitive 6% 401k match
  • And more!

Candidate must pass a pre-employment screening including credit history and criminal record check.
Our company provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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