Lead Tier 3 System Administrator — On-Site DC

Ardent; Washington; On-site; USD 120,000 - 170,000; Full time

Job summary

Ardent in Washington, DC is seeking a Tier 3 System Administrator Lead to support the United States Holocaust Memorial Museum (USHMM) and its critical infrastructure. The role focuses on end-to-end operational integrity, availability, maintenance, and recovery of the Museum's server ecosystem, with on-site operations to enable 24x7x365 escalation.

You will lead administration of Windows and Linux servers, VMware, AWS, and AD, while automating tasks with shell scripts and coordinating changes

Qualifications

• Experience maintaining operational integrity across on-prem, virtual, and cloud servers.
• Expertise in Linux and Windows server administration and shell scripting.
• Ability to troubleshoot server hardware, OS, virtualization, storage, backups, and identity services.
• Experience with VMware, Windows Server, Linux, AWS, AD, DNS, SSL certs, patching and monitoring practices.
• Ability to document work, coordinate changes with stakeholders, and lead vendor escalation.
• Willingness to support on-site work and participate in 24x7x365 after-hours escalation.

Responsibilities

• Lead administration, monitoring, maintenance, troubleshooting, and recovery for Windows and Linux servers.
• Patch OS, monitor storage, perform backups, renew SSL certificates, firmware updates, and remediation.
• Administer VMware ESXi/vCenter, AWS EC2 and related services, SQL/MySQL/Oracle, AD, DNS infrastructure.
• Automate repeatable tasks using shell scripting to accelerate diagnosis and recovery.
• Support AWS operations including EC2 lifecycle, S3, Route 53, VPC, Lambda, CloudWatch, IAM.
• Deploy physical/virtual/cloud servers; complete domain joins, DNS/IP registration, security baselines, and asset tagging.
• Operate backup and recovery platforms, conduct DR exercises, and verify runbooks.
• Provide Tier 3 escalation and after-hours support for critical infrastructure.

Skills

Linux server administration

Windows server administration

Shell scripting

VMware vCenter/ESXi

AWS cloud services

Active Directory

DNS administration

Backup & disaster recovery

Storage & backup platforms

Documentation & change management

Tools

VMware vCenter

PowerScale

OneFS

Cohesity

Dell Unity

SolarWinds

AWS CloudWatch

Job description

Ardent in Washington, DC is seeking a Tier 3 System Administrator Lead to support the United States Holocaust Memorial Museum (USHMM) and its critical infrastructure. The role focuses on end-to-end operational integrity, availability, maintenance, and recovery of the Museum's server ecosystem, with on-site operations to enable 24x7x365 escalation.

You will lead administration of Windows and Linux servers, VMware, AWS, and AD, while automating tasks with shell scripts and coordinating changes