Systems Administrator

Apply for the Systems Administrator role at Thompson Coburn LLP
, a large full‑service law firm with offices in Birmingham, Chicago, Dallas, New York, St. Louis, and Washington, D.C. This full‑time exempt position offers a hybrid‑remote schedule after initial training.

• Supports Microsoft platforms across multiple on‑premise systems and Azure/Office 365 cloud environments.
• Provides first response to server incidents, manages trouble ticketing, and performs daily maintenance and monitoring of systems.
• Proactively manages on‑premise and Azure‑based infrastructure, including Microsoft Enterprise Cloud Suite;
  Exchange (2019–current);
  Azure AD/Entra  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;
  Forti Gate firewalls; and Cohesity backup and recovery solutions.
• Performs daily system monitoring and remediation across servers, applications, and infrastructure services.
• Enforces security baselines for all Windows Server systems in alignment with organizational standards and compliance obligations.
• Conducts 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.
• Proactively identifies, reports, and participates in the resolution of 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, and manages project implementation, coordination, and execution 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.

• 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.
• Proven knowledge supporting Exchange in multisite and Office 365 hybrid environments, along with a strong understanding of Azure AD/Entra , Conditional Access, MFA, Azure governance (RBAC, tagging, cost awareness), and hybrid cloud troubleshooting.
• Solid knowledge of VMware vSphere or Nutanix AHV/Prism, SAN/NAS connectivity, networking fundamentals, and N‑tier enterprise architectures.
• Proficiency with monitoring tools such as SCOM and Solar Winds, 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. Familiarity with HIPAA, PCI, and PII requirements.
• Experience with Power Shell scripting for automation of routine administrative tasks. Working knowledge of SCCM, application packaging, OSD, Cohesity or equivalent backup technologies, certificate services/PKI, and enterprise file services.
• Knowledge of disaster recovery principles including RTO/RPO planning, replication, failover, and DR testing.
• Understanding of ITIL‑aligned change, incident, and problem management processes, including CAB participation, risk assessment, and backout planning.
• Intermediate knowledge of…