System Administrator

• Analyze business and technical requirements, identify business solutions, and document requirements
• Support, maintain, improve, and optimize systems software, hardware, and peripheral devices
• Deliver, assure, monitor, and improve installation, patching, and operation of systems for various plants in the Americas Region

Systems Administrator

• Triage and respond to security alerts across Huntress, Blumira, and Microsoft Entra ID, investigating risky sign-ins, anomalous behavior, and policy violations
• Manage and optimize endpoint security tooling, including SentinelOne and other EDR/EPP platforms, ensuring coverage, policy enforcement, and timely response across the device fleet
• Assess and help govern the security implications of AI tool adoption across the organization, evaluating data access, integration permissions, and acceptable use boundaries as new AI initiatives are introduced
• Collaborate with the Platform, Product & Innovation team to ensure security controls and governance frameworks are built into AI and data-driven projects from the outset, rather than retrofitted after deployment
• Investigate security incidents end-to-end and produce clear documentation for technical and leadership audiences
• Audit security configurations against established policies, identify implementation gaps, and surface findings with recommended remediation paths
• Review and validate Conditional Access policies, MFA configurations, and identity hygiene across Microsoft Entra ID
• Conduct vulnerability assessments and coordinate remediation with relevant IT and infrastructure owners
• Perform routine audits of user access, privileged accounts, application permissions, and SaaS integrations
• Support compliance gap analysis against SOC 2, NIST, and CIS Controls frameworks and contribute to the organization’s regulatory readiness roadmap
• Evaluate security tools and processes and provide input on improvements that would meaningfully strengthen our posture
• Assist in training junior IT staff on incident identification and response, progressively delegating routine work as their skills develop
• Stay current with the evolving threat landscape, including AI-specific risks, and bring relevant insights back to the team

System Administrator – Contract-to-Hire

• Administer, configure, and optimize HPC job scheduling environments, including IBM Spectrum LSF, Open PBS, or equivalent schedulers.
• Design and tune job queues, resource allocation policies, and scheduling strategies to support diverse CAE workloads.
• Monitor system performance and utilization trends and implement improvements to maximize efficiency and throughput.
• Install, upgrade, test, and support CAE applications and simulation tools in production environments.
• Provide integration support between CAE applications and HPC scheduling systems.
• Manage CAE software licensing systems (e.g., FlexLM, RLM) and ensure availability.
• Troubleshoot application-related issues and ensure minimal disruption to engineering activities.
• Administer and maintain Red Hat Enterprise Linux (RHEL) environments across HPC clusters.
• Perform OS provisioning, deployment, and patch management using automated tools (e.g., PXE, or configuration management solutions).
• Develop and maintain scripts (Bash, Korn shell, C Shell, Perl, Awk, or equivalent) to automate system monitoring, health checks, and routine administrative tasks.
• Maintain system logs, monitoring processes, and standard operating procedures.
• Troubleshoot and resolve issues related to servers, storage systems, and high-performance networking (e.g., InfiniBand, high-speed Ethernet).
• Support hardware lifecycle activities including installation, maintenance, and upgrades.
• Conduct capacity planning based on system utilization trends and future demand.
• Perform system health checks, monitoring, and incident tracking for HPC and CAE environments.
• Document system configurations, procedures, incidents, and best practices.
• Track outages, analyze root causes, and implement preventive measures.
• Follow change management processes for system updates and deployments.
• Provide accurate reporting (e.g., utilization, incidents, system performance) and support project initiatives.

CAE HPC System Administrator

• Provide Level 3–4 system administration, solution consultation, and engineering for Microsoft Exchange Online and on-premises Exchange Server SE infrastructure, including hybrid configuration management, SMTP relay governance for business-critical systems, mail flow architecture (connectors, transport rules, DNS/SPF/DKIM/DMARC), and mailbox lifecycle management.
• Administer SharePoint Online and OneDrive for Business, including site provisioning and governance, permission and access management, external sharing policies, Information Steward responsibilities, storage management, site modernization, file share-to-SharePoint migrations, and monitoring of high-risk admin changes across all management interfaces.
• Administer Microsoft Teams, including tenant policy, Teams governance (ownership lifecycle, archival processes), compliance, and app ecosystem governance (approval gates, permission policies, audits).
• Perform security patching, update management, and security hardening across servers and the M365 tenant; manage Entra ID role assignments (PIM/JIT), RBAC for applications, and conduct periodic admin access reviews across Exchange, SharePoint, and Teams admin roles to ensure least-privilege compliance.
• Support Microsoft Purview compliance functions across the M365 ecosystem, including eDiscovery and legal holds, Data Loss Prevention (DLP), retention labels and policies, audit log management, and data privacy requests (GDPR/SOX) spanning Exchange, SharePoint, Teams, and OneDrive content.
• Develop and maintain PowerShell scripts and automation for administrative tasks, reporting, health monitoring, bulk operations, and governance signals (e.g., owner attestation, guest recertification, OneDrive sync monitoring) across all M365 workloads.
• Actively monitor Microsoft Message Center posts, roadmap changes, and new feature releases; evaluate and prepare for rollouts; coordinate change communications with affected stakeholders; and drive feature enablement in partnership with Microsoft and internal teams (Security, Records Management, Data Privacy, Computer Services).
• Support strategic enterprise projects including migrations, Exchange infrastructure upgrades, licensing support, Microsoft feature deprecation, and cross-workload lifecycle alignment (Teams ↔ SharePoint ↔ Exchange) for retention and eDiscovery.

System Administrator jobs in Missouri

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Systems Administrator

System Administrator – Contract-to-Hire

CAE HPC System Administrator

Microsoft 365 System Administrator