!!MUST BE LOCATED IN THE ST. LOUIS AREA!!

Job Description

Systems Administrator will manage and maintain infrastructure and platform technologies to support the production environment in order to meet service level objectives, business level functionality, and security requirements. This position will handle escalated support matters to determine and address systemic issues, as well as help adapt processes for technology changes to maximize end-user productivity.

Key Responsibilities

Supports Microsoft platforms across multiple on-premise systems and Azure/Office 365 cloud environments.
Provides first response to server incidents, management of trouble ticketing, and daily maintenance/monitoring of systems.
Proactively manages on-premise and Azure-based infrastructure, including Microsoft Enterprise Cloud Suite; Exchange (2019–current); Azure AD/Entra ID identity services; Conditional Access and MFA technologies; Intune device and endpoint management; Windows Server (2019–2022); VMware vSphere; Nutanix AHV and Prism Central; Cisco Unified Communication Manager (CUCM); SAN/NAS storage systems; Cisco LAN/WAN environments; FortiGate firewalls; and Cohesity backup and recovery solutions.
Performs daily system monitoring and remediation across servers, applications, and infrastructure services.
Enforce security baselines for all Windows Server systems in alignment with organizational standards and compliance obligations.
Performs regular security hardening, patching, and remediation for servers, applications, and infrastructure components.
Develops and maintains accurate, concise process documentation related to assigned systems and responsibilities.
Acts as a tier-3 escalation point for IT team members and provides technical guidance for vendor coordination and support activities.
Assists IT team members with user application and end-user computing issues, ensuring timely and effective resolution.
Provides direction and mentorship to junior team members in diagnosing and resolving production environment issues.
Participates proactively in change, incident, and problem management processes in accordance with organizational policies and governance.
Provides after-hours support for system-related emergencies as well as occasional weekend maintenance.
Proactive in identifying, reporting, and participating in the resolution of any potential or safety issues
Performs data analysis, performance optimizations, and database maintenance as required.
Advises and directs other development group members and provides assistance on projects. Responsible for the implementation, coordination, and management of projects when required.
Performs other duties necessary to maintain the overall efficiency and continuity of the department.
Attends meetings as assigned and participates in educational activities to keep skills up to date.

Knowledge, Skills, and Abilities Required

Must possess expert knowledge of Windows Server roles (DNS, ADFS, DFS, DHCP, IIS, RDS, NTFS, Print Services) and core protocols (TCP/IP, LDAP, SMTP, SNMP, SSH/SFTP). Advanced experience with Active Directory, Group Policy, security hardening, remediation, and Microsoft clustering.
Must possess knowledge supporting Exchange in multisite and Office 365 hybrid environments, along with a strong understanding of Azure AD/Entra ID, Conditional Access, MFA, Azure governance (RBAC, tagging, cost awareness), and hybrid cloud troubleshooting.
Must possess knowledge of VMware vSphere or Nutanix AHV/Prism, SAN/NAS connectivity, networking fundamentals, and N-tier enterprise architectures.
Must possess knowledge with monitoring tools such as SCOM and SolarWinds, log aggregation and SIEM platforms (Azure Log Analytics, Sentinel), vulnerability management tools (Qualys, Defender for Endpoint), endpoint security/EDR/XDR solutions, and Windows Server security hardening. Strong familiarity with HIPAA, PCI, and PII requirements.
Must have knowledge PowerShell scripting experience and the ability to automate routine administrative tasks. Working knowledge of SCCM, application packaging, OSD, Cohesity or equivalent backup technologies, certificate services/PKI, and enterprise file services.
Working knowledge of disaster recovery principles including RTO/RPO planning, replication, failover, and DR testing.
Working knowledge with ITIL-aligned change, incident, and problem management processes, including CAB participation, risk assessment, and backout planning.
Working intermediate knowledge of Microsoft Office Suite and project management/analyst applications.
Must possess a high level of professionalism and interpersonal skills so as to be able to work well with employees at all levels within the organization and maintain all information in the strictest of confidence. Required to use tact and diplomacy when dealing with others.
Must have the ability to read, write and communicate fluent English; ability to compose documents in the appropriate business style using correct grammar and spelling; ability to communicate clearly using proper grammar and diction over the telephone.
Must possess attention to detail, ability to balance multiple projects, and strong time management skills.
Must have the ability to reason and apply common-sense understanding to situations encountered.
Must have the ability to process routine daily functions while being able to resolve sensitive issues and complex assignments utilizing above-average critical thinking skills.
Ability to travel as necessary.
This is a full-time position that requires working a minimum of forty (40) hours per week on a regular basis. Oftentimes, it may also include working outside of normal business hours to ensure the completion of position requirements.

Experience and Education Qualifications

Bachelor’s Degree in Computer Information Systems or equivalent degree/experience required.
CompTIA Network+, CompTIA Security +, and MCSE: Core Infrastructure, or equivalent credentials.
Five plus (5+) years of experience supporting a multi-site MS Active Directory and MS Azure AD Premium environment.

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