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Computer Systems Administrator Jobs in Missouri (NOW HIRING)

Intellivo

IT Systems Administrator

Creve Coeur, MO · On-site

IT Systems Administrator Role Summary The IT Systems Administrator is responsible for administering ... Bachelor's degree in Information Technology, Computer Science, or related field--or equivalent ...

Intellivo

IT Systems Administrator

Creve Coeur, MO · On-site

IT Systems Administrator Role Summary The IT Systems Administrator is responsible for administering ... Bachelor's degree in Information Technology, Computer Science, or related field--or equivalent ...

GDIT

Systems Administrator (SaaS)

Saint Louis, MO · On-site

$125K - $170K/yr

The Systems Administrator (SA) will work as part of an elite and agile team responsible for ... EDUCATION Bachelors Degree in Computer Science or a related technical discipline, or the equivalent ...

Intellivo

IT Systems Administrator

Creve Coeur, MO

IT Systems Administrator Role Summary The IT Systems Administrator is responsible for administering ... Bachelor's degree in Information Technology, Computer Science, or related field-or equivalent ...

Control Devices LLC

IT Systems Administrator

Fenton, MO · On-site

Position Title: IT Systems Administrator Department: Information Technology Location: Fenton, MO ... Bachelor's degree in information technology, Computer Science, Information Systems, or a related ...

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Computer Systems Administrator information

See Missouri salary details

$33.3K

$67.7K

$109.7K

How much do computer systems administrator jobs pay per year?

As of Sep 15, 2026, the average yearly pay for computer systems administrator in Missouri is $67,729.00, according to ZipRecruiter salary data. Most workers in this role earn between $49,200.00 and $87,700.00 per year, depending on experience, location, and employer.

What is a computer systems administrator?

Computer systems administrators oversee the operations of a company’s computer system, which may include examining all computer hardware, application software, security, and network equipment. As a computer systems administrator, you work with a variety of software developers, database administrators, security professionals, and infrastructure specialists to ensure that the entire computer system is stable, functional, and safe. Other responsibilities may involve the installation of information technology components, reviewing system security measures, and maintaining the production system.

What are the key skills and qualifications needed to thrive as a computer systems administrator, and why are they important?

To thrive as a Computer Systems Administrator, you need expertise in operating systems, networking, system security, and troubleshooting, usually backed by a bachelor's degree in computer science or related field. Familiarity with tools like Windows and Linux server environments, virtualization platforms, and certifications such as CompTIA Network+ or Microsoft Certified Systems Administrator (MCSA) are commonly required. Strong problem-solving, communication, and organizational skills help administrators manage user needs and coordinate with IT teams. These abilities are crucial for maintaining system reliability, security, and efficient support across an organization's technology infrastructure.

What are some common challenges computer systems administrators face when managing large networks?

Computer Systems Administrators often encounter challenges such as ensuring network security across multiple devices, maintaining system uptime during updates or troubleshooting, and balancing the need for rapid problem resolution with minimizing disruption to users. They must also keep up with evolving technologies and security threats, which requires continuous learning and adaptability. Effective communication with end users and other IT staff is key to addressing issues efficiently and keeping systems running smoothly.

What is the difference between Computer Systems Administrator vs Network Administrator?

AspectComputer Systems AdministratorNetwork Administrator
CertificationsCompTIA Server+, Cisco CCNA, Microsoft Certified: Windows Server FundamentalsCompTIA Network+, Cisco CCNA, Juniper JNCIA
Work EnvironmentManage servers, hardware, and software systems within organizationsFocus on designing, implementing, and maintaining network infrastructure
Employer & Industry UsageIT departments across various industries, supporting internal systemsOrganizations requiring robust network connectivity, such as ISPs, large corporations

Computer Systems Administrators primarily manage and maintain an organization’s servers and internal systems, while Network Administrators focus on designing and maintaining network infrastructure. Both roles often overlap but differ in their core responsibilities and certifications.

Do computer systems administrators make good money?

Computer systems administrators typically earn a competitive salary that varies based on experience, location, and industry. According to industry data, the median annual wage is around $80,000, with higher earnings possible for those with advanced certifications or specialized skills in network management and cybersecurity.
More about Computer Systems Administrator jobs

What are popular job titles related to Computer Systems Administrator jobs in MO?

For Computer Systems Administrator jobs in MO, the most frequently searched job titles are:

Computer Systems Administrator jobs near you
Infographic showing various Computer Systems Administrator job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 11% Part Time, 5% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution, with an average salary of $67,729 per year, or $32.6 per hour.

IT Systems Administrator

Creve Coeur, MO • On-site

Intellivo
See more jobs at Intellivoexternal

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 6 days ago

Job description

IT Systems Administrator Role Summary

The IT Systems Administrator is responsible for administering, maintaining, securing, and troubleshooting Intellivo’s IT systems, networks, and endpoint technologies. This role ensures that internal systems operate securely, reliably, and efficiently while supporting compliance, infrastructure maturity, and operational readiness across the organization.

The Systems Administrator works closely with Security, Infrastructure, Engineering, and all business units to support end users, improve IT environments, strengthen ISO27001 controls, respond to security alerts, and ensure IT systems are hardened and well-documented. This role also serves as an escalation point and technical leader for junior network, systems, and security staff.

Core Responsibilities: Systems Administration & User Support
  • Administer core IT systems, including O365, Windows Server, VMware environments, and corporate endpoints.
  • Troubleshoot user hardware and software issues and provide hands-on support when needed.
  • Assist in hardening new systems and ensuring secure configuration baselines.
  • Onboarding and Offboarding users
Security Monitoring, Hardening & Patch Management
  • Administer endpoint protection solutions and respond to security alerts across systems.
  • Assist with patch management for servers, endpoints, applications, and infrastructure devices.
  • Identify and repair vulnerabilities, security issues, systems failures, and network problems.
Network Troubleshooting & Support
  • Troubleshoot on-prem and cloud network issues and contribute to creating resilient networking solutions.
  • Assist with implementing new network configurations and improvements as needed.
Compliance, Audits & Documentation
  • Assist with ISO 27001:2013 compliance efforts and related audit documentation.
  • Support client security audits and respond to audit requests.
  • Manage, maintain, and create IT policies, procedures, and documentation.
Escalation & Technical Leadership
  • Serve as an escalation point and informal leader to Junior Network, Systems, and Security staff.
  • Provide technical mentorship, guidance, and support across IT operations.
Information Security Awareness & Communication
  • Participate in developing communications and staff awareness campaigns related to security best practices.
  • Support security governance efforts with proactive recommendations and user education.
Systems Monitoring & Improvements
  • Implement and respond to alerts from various system monitoring tools, including Security Information & Event Management (SIEM) platforms.
  • Research, recommend, and help implement new IT and security solutions to improve reliability and security.Additional Duties & Availability
Perform other related duties as assigned to support IT Operations.
  • Work after hours as needed to support upgrades, emergency troubleshooting, or scheduled maintenance.
Experience & Technical Skills
  • Bachelor’s degree in Information Technology, Computer Science, or related field—or equivalent certifications and experience.
  • 3+ years of relevant IT systems administration experience.
  • Experience evaluating and responding to security risks and vulnerabilities.
  • Proficiency with:
    • AlertLogicor similar SIEM tools
    • Windows Server & Windows OS
    • Azure Administration
    • O365 Administration
    • VMware
    • Patch Management solutions
    • SQL Server Management Studio (SSMS)
  • Strong troubleshooting and diagnostic abilities across networking, systems, and security environments.
  • Understanding of ISO27001:2013 controls and security best practices.
Professional Skills
  • Excellent verbal and written communication skills.
  • Strong organizational and multitasking abilities in a high-volume environment.
  • Detail-oriented with excellent critical thinking and problem-solving skills.
  • Self-motivated, adaptable, and capable of working independently or collaboratively.
Who is Intellivo?

As an industry market leader in subrogation, Intellivo empowers health plans and insurers to maximize financial outcomes by identifying and pursuing more reimbursement opportunities from alternative third-party liability (TPL) payers. Through innovative technology, Intellivo accelerates the identification of reimbursement opportunities while eliminating burdensome outreach to plan members. With a 26-year history of excellence, Intellivo proudly represents more than 200 of the country’s largest health plans.

We are Intellivators – forward-thinking pioneers building the technologies that Fortune 500 employers, health plans, TPAs, providers, and billing organizations rely on to ensure responsible claim payments. Fueled by our experience and innovative startup mentality, we are growing fast.

Benefits That Support You Inside and Outside of Work
  • Comprehensive medical, dental, and vision insurance
  • 401(k) retirement savings plan with employer match
  • Paid time off and paid holidays
  • Company-paid life insurance and short-term and long-term disability coverage
  • Employee Assistance Program with counseling, financial coaching, legal resources, career coaching, and wellness support
  • Health Savings Account with company contributions for eligible employees
  • Wellness, healthcare advocacy, and pet benefits
  • A high-performing, collaborative culture built on ownership, accountability, continuous improvement, and meaningful impact
Equal Opportunity Employer

Intellivo is an Equal Opportunity Employer and does not discriminate based on race, color, religion, sex, national origin, age, disability, or any other protected status. Employment decisions are based on qualifications, merit, and business need.

This is an on-site role in our St. Louis, Missouri office.
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