44 junior systems administrator jobs at 35 companies in O'Fallon, IL
6d
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Systems Administrator
St. Louis, Missouri, United States
HybridFull Time
2+ YOE2+ years of progressive IT experience preferred, with Microsoft 365, Windows, IT policy management, endpoint administration, troubleshooting, user lifecycle management, and security compliance knowledge.
Microsoft 365, Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Entra ID, Microsoft Intune, Remote Monitoring and Management (RMM), Windows
2w
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Jr. Systems Administrator
Scott Air Force Base, Illinois, United States
$60k-$71k/yr OnsiteFull Time
1+ YOERequires 1+ year of systems administration or IT support experience, active Secret clearance with TS eligibility, DoD 8140/8570 IAT Level II certification, and Windows Server or Linux familiarity.
Active Directory, DNS, Group Policy, Windows Server, Linux, HBSS, ACAS, SIEM, Microsoft Excel
2w
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Systems Administrator
St. Louis, Missouri, United States
$60k-$72k/yr OnsiteFull Time
2+ YOEBachelor's degree in computer science or related field, or 2–6 years of related experience. Requires operating systems, project management, Windows Server, Active Directory, Cisco UCS, and VMware experience.
Microsoft Active Directory, Cisco Unified Computing System (UCS), VMware Hypervisor, Windows Server, DNS, DHCP, SAN
1w
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IT Systems Administrator II
Creve Coeur, Missouri, United States
OnsiteFull Time
2+ YOETwo years of systems administration experience required, with Microsoft 365, Active Directory, Entra ID, virtualization, cloud-integrated systems, PowerShell automation, and infrastructure project experience. Associate's degree preferred.
Microsoft 365, Azure, Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Active Directory, Entra ID (Azure AD), Microsoft Copilot, PowerShell, Windows, Linux, Unix, Nutanix, HSA, FSA, CHUBB, 401K, Employee Stock Ownership Plan (ESOP)
2mo
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Salesforce & Marketing Cloud Systems Administrator
Fenton, Missouri, United States
HybridFull Time
0+ YOE0-2 years relevant experience, Bachelor's degree or equivalent, experience with SQL Server, Salesforce and Marketing Cloud preferred; data management, query writing, documentation, and strong interpersonal and problem-solving skills.
Salesforce, Marketing Cloud, SQL Server, Agent360, Data360, Flow
5d
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Branch Administrator
Chesterfield, Missouri, United States
$20/hr OnsiteFull Time
0.5+ YOEHigh school education and 6+ months of related experience preferred. Requires computer systems knowledge, attention to detail, data entry, organization, and communication skills.
SAP
2mo
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Geospatial Systems Engineer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis or Sun Prairie
OnsiteFull Time
8+ YOEActive Top Secret/SCI clearance, bachelor’s in STEM, 8+ years experience, enterprise ArcGIS and systems administration, scripting (Python/PowerShell/JS/C#), RDBMS and network knowledge.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, PowerShell, JavaScript, C#, SQL Server, Oracle, PostgreSQL, Windows, Linux
3w
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Security Engineer and IT Systems Admin.
St. Louis or Jefferson City
OnsiteFull Time
2+ YOEActive Secret clearance, bachelor's degree or equivalent experience, Security+ or higher certification, and at least 2 years in cybersecurity, information assurance, system administration, or IT operations.
Risk Management Framework (RMF), Security Control Assessments (SCAs), Change Control Board (CCB), VM images, Department of Defense Instruction (DoDI), National Institute of Standards and Technology (NIST), Security Technical Implementation Guide (STIG), Assured Compliance Assessment Solution (ACAS), Nessus, Security Content Automation Protocol (SCAP) Compliance Checker (SCC), Enterprise Mission Assurance System (eMASS), Control Correlation Identifiers (CCI), Committee on National Security Systems Instruction (CNSSI), ISEC-MED, Plan of Action and Milestones (POAM), Security Control Assessor-Validator (SCA-V), Security Impact Analyses (SIA), Windows
1mo
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Sales Administrator
St. Charles, Missouri, United States
OnsiteFull Time
Provide sales support and order coordination, follow up on credits/RMAs/backorders, monitor systems and delivery windows, collaborate cross-functionally, and communicate with customers and sales teams.
CIMS, WebHelm, Accuterm, Optimiroute, M3
1mo
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Office Administrator Bilingual
St. Louis, Missouri, United States
$60k/yr OnsiteFull Time
2+ YOE2+ years HR/admin experience, undergraduate degree or equivalent preferred, proficiency with HRIS and payroll systems, recruiting and onboarding experience, payroll data entry, and strong organizational skills.
HRIS, Winteam, Equifax case builder, Paycor, Ehub
1mo
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Systems Support Analyst
St. Louis, Missouri, United States
$47k-$64k/yr RemoteFull Time
Provide first-line IT support, account administration in Active Directory/Microsoft Admin Center/Vonage/Salesforce, endpoint and patch monitoring, and end-user training; bachelor\u0002s degree preferred.
Active Directory, Microsoft Admin Center, Vonage, Salesforce, WSUS, Microsoft Office, Microsoft Teams
2h
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Administrative Assistant
Earth City, Missouri, United States
OnsiteFull Time
2+ YOERequires 2+ years of administrative, scheduling, project coordination, or customer service experience, strong organization and communication skills, attention to detail, and proficiency with Microsoft Office and scheduling systems.
Microsoft Office, CRM
1w
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Help Desk Tier III (Systems Administrator)
Scott Air Force Base or St. Louis
OnsiteFull Time
Bachelor's degree in a technical field, or any bachelor's degree with an accepted certification; scripting experience; enterprise technology experience; and ability to obtain and maintain DoD Secret clearance.
PowerShell, Bash, Python, TCP/IP, DHCP, DNS, VPN, VMware, Hyper-V, KVM, Windows Server
20h
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Learning Management System Administrator & Compliance Analyst
Saint Louis, Missouri, United States
$52k-$85k/yr OnsiteFull Time
2+ YOERequires 2–5 years of experience supporting learning management systems, data reporting, quality processes, and performance improvement. Bachelor's degree and 5–10 years of experience preferred.
Learning Management System (LMS), SABA, Microsoft Excel
2mo
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DevOps Engineer - Junior
Denver or Sterling or St. Louis
$58k-$116k/yr OnsiteFull Time
0+ YOETS/SCI clearance (ability to obtain Poly), Bachelor's degree in a technical discipline, 0–3 years supporting DevOps/DevSecOps or system administration, familiarity with Linux, scripting (Python/Bash/PowerShell), Git, CI/CD and container technologies.
Linux, Python, Bash, PowerShell, Git, Jenkins, GitLab CI/CD, GitHub Actions, Bamboo, Docker, Kubernetes, AWS, Azure, Google Cloud, Terraform, Ansible
1mo
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Medical Office Assistant
Waterloo, Illinois, United States
$15-$20/hr OnsiteFull Time
Providing patient-facing administrative support including scheduling, patient data collection, payments, and use of clinic computer systems; high school diploma/GED preferred; strong communication and organizational skills.
2mo
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Admin Assistant, Private Dining and Sales
Chesterfield, Missouri, United States
OnsiteFull Time
Administrative support for private dining and event sales; strong phone and written communication, attention to detail, proficiency with Tripleseat, OpenTable, Microsoft Office, email and reservation systems; prior hospitality/admin experience preferred.
Tripleseat, OpenTable, Microsoft Office, PDF
1w
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Administrative Assistant - Business Office Data Entry
St. Louis, Missouri, United States
$18/hr OnsitePart Time
Processes accounts payable, maintains vendor and invoice records, supports reconciliations and reporting, and uses financial accounting systems and contract databases.
accounting system, financial accounting software, contract database
2mo
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Receptionist
Red Bud, Illinois, United States
$15-$22/hr OnsiteFull Time
Provide patient-facing reception, schedule appointments, collect demographics/insurance, process payments, and use computer systems; high school/GED preferred.
1mo
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Health Information Specialist I- St. Louis, MO
St. Louis, Missouri, United States
OnsiteFull Time
Process release of information and medical record requests, maintain HIPAA-compliant confidentiality, document in multiple systems, strong data entry and communication skills.
Microsoft Office, Microsoft Word, Microsoft Excel, EHR
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