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Systems Administrator Jobs in Collinsville, IL (NOW HIRING)

Boeing

Mid-Level Systems Administrator

Berkeley, MO · On-site

Mid-Level Systems Administrator Company: The Boeing Company The Boeing Company is looking for a highly experienced and detail-oriented Mid-Level Systems Administrator to join the team in Berkeley, MO

BAE Systems

Systems Admin Prin

Saint Louis, MO · On-site

$107.36K - $182.51K/yr

As a Systems Administrator in an enterprise test organization, the incumbent will be part of a thriving dynamic team of Systems Administrators and IT professionals. The test center support team ...

Boeing

Mid-Level Systems Administrator

Berkeley, MO · On-site

Mid-Level Systems Administrator Company: The Boeing Company The Boeing Company is looking for a highly experienced and detail-oriented Mid-Level Systems Administrator to join the team in Berkeley, MO

Govcio LLC

Systems Administrator - Tier 2

Saint Louis, MO · On-site

$61.85K - $70K/yr

GovCIO is currently hiring for System Administrator/Software Analyst to support our US Coast Guard IPSS contract needs. This position is located in St. Louis, MO and will be a hybrid remote position.

Govcio LLC

Systems Administrator - Tier 2

Saint Louis, MO · Hybrid

$61.85K - $70K/yr

GovCIO is currently hiring for System Administrator/Software Analyst to support our US Coast Guard IPSS contract needs. This position is located in St. Louis, MO and will be a hybrid remote position.

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$38K

$82.4K

$127.5K

How much do systems administrator jobs pay per year?

As of May 28, 2026, the average yearly pay for systems administrator in Collinsville, IL is $82,433.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,900.00 and $96,400.00 per year, depending on experience, location, and employer.

What Is the Job Description of a Systems Administrator?

The primary duties of a system administrator are to install, update, and maintain computer systems while managing user access regimes. As a systems administrator, you have administrative privileges to change settings, install or remove software, and access security functions unavailable to normal users. A systems administrator might oversee multiple machines at once, or even an entire network. You provide technical support to users who are experiencing problems and collaborate with network administrators to ensure the continued performance of the network. As a systems administrator, you determine the level of access a user has to network information and what operations they can perform, limiting users to only what they need to perform their job.

What are the key skills and qualifications needed to thrive as a Systems Administrator, and why are they important?

To thrive as a Systems Administrator, you need a solid understanding of operating systems, network management, and security protocols, typically supported by a relevant degree or certifications like CompTIA Network+, Microsoft Certified Solutions Associate (MCSA), or Linux+. Familiarity with tools such as Active Directory, virtualization platforms, and configuration management systems is essential. Strong problem-solving abilities, attention to detail, and effective communication skills help you respond quickly to issues and work collaboratively with IT teams. These skills and qualifications are crucial for maintaining system reliability, minimizing downtime, and ensuring secure, efficient IT operations.

What are some typical challenges a Systems Administrator faces when managing both on-premises and cloud infrastructure?

Systems Administrators often juggle responsibilities across on-premises servers and cloud-based platforms, which can introduce challenges such as ensuring seamless integration, maintaining consistent security policies, and managing access controls. Balancing updates, backups, and monitoring tools across different environments requires strong organizational skills and up-to-date technical knowledge. Effective communication with other IT team members and end users is also crucial for troubleshooting and minimizing downtime.

What are Systems Administrators?

Systems Administrators, often called SysAdmins, are IT professionals responsible for managing, maintaining, and supporting computer systems and networks within an organization. Their duties include installing hardware and software, monitoring system performance, troubleshooting technical issues, and ensuring system security and data integrity. They play a key role in minimizing downtime, performing regular backups, and updating systems to keep an organization's IT infrastructure running smoothly.

What is the difference between Systems Administrator vs Network Administrator?

AspectSystems AdministratorNetwork Administrator
CertificationsCompTIA Server+, Microsoft Certified: Windows Server FundamentalsCompTIA Network+, Cisco CCNA
Work EnvironmentManage servers, operating systems, and enterprise applicationsFocus on network infrastructure, routers, switches, and connectivity
Employer & Industry UsageIT departments across various industries, supporting internal systemsOrganizations with complex networks, telecom, and internet service providers

While both roles support IT infrastructure, Systems Administrators primarily manage servers and software systems, whereas Network Administrators focus on network hardware and connectivity. Understanding these differences helps in choosing the right career path or job focus within IT.

More about Systems Administrator jobs
What are the most commonly searched types of Systems Administrator jobs in Collinsville, IL? The most popular types of Systems Administrator jobs in Collinsville, IL are:
What are popular job titles related to Systems Administrator jobs in Collinsville, IL? For Systems Administrator jobs in Collinsville, IL, the most frequently searched job titles are:
What cities near Collinsville, IL are hiring for Systems Administrator jobs? Cities near Collinsville, IL with the most Systems Administrator job openings:
Systems Administrator jobs near you
Infographic showing various Systems Administrator job openings in Collinsville, IL as of May 2026, with employment types broken down into 70% Full Time, and 30% Contract. Highlights an 73% In-person, and 27% Hybrid job distribution, with an average salary of $82,433 per year, or $39.6 per hour.

Systems Administrator III

EFC International

Saint Louis, MO • On-site

Full-time

Posted 23 days ago

Job description

About the Role

EFC International is seeking a senior-level Systems Administrator III to join our IT Infrastructure team. This role combines technical leadership with hands-on work across enterprise systems, infrastructure projects, and operational improvements.

What You’ll Do

  • Lead infrastructure projects from planning through deployment
  • Manage and support VMware environments and enterprise systems
  • Maintain network infrastructure including routing, switching, and firewalls
  • Administer Microsoft 365 identity solutions including Entra ID Azure AD
  • Drive automation using PowerShell, Power Automate, N8N, or similar tools
  • Identify and implement automation opportunities to improve efficiency
  • Support vulnerability management using Tenable or similar tools
  • Participate in disaster recovery planning, testing, and remediation
  • Develop and maintain operational playbooks for outages and incidents
  • Serve as a senior escalation point and mentor team members
  • Perform hands-on work including server installs, networking, and hardware support

What We’re Looking For

  • 5 plus years of infrastructure or systems administration experience
  • Strong VMware and enterprise networking experience
  • Experience with Microsoft 365, Intune, and Group Policy
  • Hands-on experience with tools such as Cisco Meraki, Dell iDRAC, Zscaler, and Tenable
  • Strong scripting and automation experience preferred

Physical Requirements

  • Ability to lift up to 50 lbs. and climb ladders
  • Experience racking and cabling servers and data center equipment
  • Experience installing AV equipment including mounted displays and conferencing systems

Why EFC

Join a collaborative team where your work directly impacts business performance. You will have the opportunity to lead meaningful projects, modernize infrastructure, and grow your technical expertise.