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33 linux system administrator jobs at 12 companies in O'Fallon, MO

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Cupertino, CA, US
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4w
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System Administrator
Earth City, Missouri, United States
$60k-$85k/yr OnsiteFull Time
Credit Control
Credit Control: Provides debt recovery and accounts receivable management services.
5+ YOE5+ years system administration experience; Windows Server and Linux administration; Active Directory, DNS, DHCP, Group Policy; virtualization (VMware/Hyper-V); scripting (PowerShell, Bash); bachelor’s degree or relevant certifications.
Windows Server, Linux, Active Directory, DNS, DHCP, Group Policy, VMware, Hyper-V, VLANs, TCP/IP, Firewalls, PowerShell, Bash, Appgate SDP, Microsoft 365, Azure AD Sync, ConnectWise Service Manager, SentinelOne, Rapid7, Cisco Umbrella, CyberArk
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2mo
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AWS System Administrator
St. Louis or Springfield
$75k-$158k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive TS/SCI clearance, bachelor’s in a technical field, 5+ years relevant experience, DoD 8140.01/8570.01-M IAT Level II, RHEL 7/8/9 and Linux administration, AWS resource management, scripting (Python/Bash), AWS CLI and CloudFormation.
AWS, EC2, EBS, VPCs, IAM, Red Hat Enterprise Linux (RHEL) 7/8/9, Linux, Python, Bash, AWS CLI, CloudFormation
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2w
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System Administrator II / System Administrator III – Hybrid – Chesterfield, MO (St. Louis)
Chesterfield, Missouri, United States
HybridFull Time
Experitec
Experitec: Provides industrial automation products and process control engineering services.
5+ YOE5+ years IT experience with 3+ years as a system administrator and 2+ years managing Windows Server; experience with Windows/Linux, virtualization (VMware), Active Directory/Azure AD, cloud (Microsoft Azure), scripting (PowerShell/Bash/Python), backup/DR, and enterprise security.
Windows Server, Linux, Active Directory, Azure Active Directory, Office 365, Group Policy, DNS, DHCP, VPN, VLAN, PowerShell, Bash, Python, VMware, vCenter, ESXi, Microsoft Azure, SAN, NAS, SIEM, SAML, LDAP, OIDC, SSO, Microsoft Copilot, GitHub Copilot
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1w
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Linux Systems Engineer
Springfield or St. Louis
$108k-$143k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOEActive TS/SCI clearance with eligibility for CI Polygraph, 5+ years Linux systems engineering experience, Nutanix AHV administration, Ansible automation, and scripting (Bash/Python).
Linux, Red Hat Ansible, Bash, Python, Nutanix, AHV, Prism Central, Prism Element, Satellite, Capsule, Grafana, Zabbix, HAProxy, F5, Docker, Kubernetes, VMware
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1w
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Linux Systems Engineer
Springfield or St. Louis
$125k-$135k/yr OnsiteFull Time
D2 Consulting
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
5+ YOEActive TS/SCI clearance, 5+ years Linux systems engineering experience, Nutanix and Ansible expertise, scripting (Bash/Python), RHEL administration, and bachelor\u0002s degree or equivalent.
Nutanix, AHV, Prism Central, Prism Element, Ansible, Bash, Python, Red Hat (RHEL), Satellite, Capsule, Grafana, Zabbix, HAProxy, F5, Docker, Kubernetes, VMware, PowerShell, OAuth, LDAP, SSO
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1mo
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Linux Systems Administrator - HPC (TS/SCI Clearance Required)
Alexandria or Chantilly or Springfield or Saint Louis
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance, strong Linux/RHEL administration, HPC cluster (Slurm/MPI) experience, STIG/IAVA remediation, VM backup experience, scripting for automation, and DoD 8570-compliant certification (e.g., Security+).
Linux, RHEL, Slurm, MPI, STIG, IAVA, Jira, Confluence
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1mo
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System Engineer- ArcGIS
Redlands or St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
8+ YOE8+ years experience deploying and administrating enterprise ArcGIS or comparable systems; Windows/Linux sysadmin; scripting (Python, PowerShell, JavaScript, C#); RDBMS and SQL; Top Secret/SCI clearance and US citizenship; Bachelor\u0002s in STEM.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, RDBMS, SQL, SQL Server, Oracle, PostgreSQL, Python, PowerShell, Javascript, C#, Windows, Linux
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1d
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Cloud System Admin 1 (Junior)
Scott Air Force Base, Illinois, United States
HybridFull Time
UNCOMN
UNCOMN: A technology services delivering secure cloud and IT solutions to public and private sector clients.
Meet DoD Cyber Workforce Framework 8140 Work Role 641, obtain CompTIA Security+ and cloud certification within 30 days, eligible for Secret clearance, Linux administration experience, strong written/verbal communication.
SAML, OAuth, AWS, Azure GovCloud, Linux, Terraform, CI/CD, Java, Python, Ruby, Bicep, ARM templates
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3w
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AWS ECDS Systems Administrator
St. Louis or United States
FieldContract
Abile Group
Abile Group: Provides IT, cybersecurity, and program management services to government agencies.
4+ YOETS/SCI clearance with CI poly required, Bachelor's in a technical field, 4+ years relevant experience, DoD 8140.01/8570.01-M IAT Level II certification, AWS administration, automation with Python/Bash, AWS CLI and CloudFormation.
AWS, EC2, EBS, VPC, IAM, AWS CLI, CloudFormation, Python, Bash, Linux
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2mo
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Cyber Security Engineer - NSS Tools
St. Louis, Missouri, United States
$75k-$158k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOEExperience in Linux system administration, shell scripting, secure networking, AWS, with TS/SCI clearance and 7+ years in related fields.
Linux, Shell scripting, AWS, EC2, S3, CloudFormation, Terraform, Ansible, GitHub, GitLab
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1mo
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Geospatial Systems Engineer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
8+ YOEUS citizen with active Top Secret/SCI clearance, Bachelor's in a STEM field, 8+ years experience, enterprise ArcGIS and systems administration (Windows/Linux) experience, scripting (Python/PowerShell/JavaScript/C#), and RDBMS/SQL skills.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Esri, Python, PowerShell, JavaScript, C#, Windows, Linux, SQL Server, Oracle, PostgreSQL
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1mo
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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
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
8+ YOEUS citizen with active Top Secret/SCI clearance, Bachelor's in STEM, 8+ years' experience, enterprise ArcGIS/admin experience, Windows/Linux systems administration, scripting (Python/PowerShell/JavaScript/C#), and RDBMS/SQL skills.
ArcGIS, ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, Microsoft PowerShell, JavaScript, C#, Microsoft Windows, Linux, Microsoft SQL Server, Oracle, PostgreSQL, SQL
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1d
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Associate Delivery Engineer, AppGate ZTNA (Federal)
Washington or Belleville or Montgomery or Albuquerque or Maryland or Virginia
$137k-$152k/yr RemoteFull Time
Gormat
Gormat: Provides cybersecurity and systems engineering services to government defense agencies
2+ YOE2+ years IT/systems/network experience, Linux administration, scripting (Bash/PowerShell/Python), identity and networking fundamentals, familiarity with public cloud, attention to detail, and willingness to obtain U.S. security clearance.
AppGate, Bash, PowerShell, Python, SAML, OIDC, RADIUS, LDAP, Active Directory, TCP/IP, DNS, TLS, VPNs, Linux, AWS, Azure, GCP, Docker, Kubernetes, STIG, SCAP
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3d
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Principal Systems Engineer (Enterprise scheduling & orchestration platforms )
Hopkins or Atlanta or Cupertino or Charlotte or New York City or Chicago or Gresham or Englewood or Cincinnati or Brookfield or Irving or Earth City
$120k-$141k/yr OnsiteFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
7+ YOE7+ years IT experience, Linux administration, enterprise scheduling (Autosys/Airflow), infrastructure automation, Python/Go/Shell scripting, cloud and DevOps practices, bachelor’s degree or equivalent experience.
Autosys, Airflow, Linux, Python, Go, Shell, Docker, Kubernetes, AWS, Azure, GCP, CI/CD, Infrastructure-as-Code
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1d
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Cloud Systems Engineer
Scott AFB, Illinois, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
10+ YOE10+ years experience, active DoD Secret clearance, IAT Level II and related certifications, RedHat Enterprise Linux administration, Terraform and Cloud Formation expertise, AWS and GitLab-ci experience, Docker/Podman proficiency, ability to mentor junior staff.
RedHat Enterprise Linux, Terraform, Cloud Formation, AWS Organizations, GitLab-ci, Git, YML, WAF, GuardDuty, Security Groups, IAM, AWS EC2, S3, System Manager, CloudTrail, Lambda, AWS Cloud Formation, Stackets, Gitlab, Gitlab-runners, docker, podman, F5 Big-IP, LTM, ASM, AWS Transit Gateway, Route53 DNS, Azure
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