Senior Systems Administrator

AnewHealth • OH - Remote, OH

8d • Remote

About The Position

AnewHealth is hiring a Senior Systems Administrator to maintain, optimize, and secure on-premises and cloud-based infrastructure. Reporting to the Manager, Servers & Storage, this senior technical authority provides advanced administration, engineering, and tier-3 escalation support across server, storage, virtualization, backup and disaster recovery, and identity platforms. The role focuses on Microsoft Hyper-V failover clusters, Pure Storage, Windows and Linux server operating systems, disaster planning and recovery, Active Directory, Microsoft 365, and infrastructure automation.

The position supports enterprise infrastructure and cloud assets, monitors systems, responds to security or usability concerns, manages identity and mail-flow services, patching, monitoring, backup and recovery, and produces technical documentation. It also provides escalation support to technical staff and for issues affecting end users. This is a remote, full-time position averaging 40 hours per week, with availability outside normal business hours or participation in an ad-hoc on-call schedule for maintenance windows, system updates, and operational needs. The position may require commuting to multiple site or datacenter locations within the assigned territory.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• At least 5 years of related systems administration experience, with demonstrated senior-level competency in an enterprise environment.
• Advanced mastery of Windows Server 2012 R2 through 2025 and working competency in Enterprise Linux, including RHEL, CentOS, and Ubuntu.
• Deep experience with Microsoft Hyper-V failover clustering and SAN/NAS administration.
• Hands-on mastery of Active Directory, GPO, Microsoft 365, Entra ID, SSO, MFA, Exchange 2019 / hybrid environments, and SSL/PKI certificate management.
• Proficiency in PowerShell, Python, or Bash scripting, along with working knowledge of cloud services.
• Methodical problem-solving skills for diagnosing complex performance bottlenecks, analyzing logs, and determining root causes under pressure.
• Strong interpersonal and customer-service skills, including rapport-building, listening, and clear technical writing.
• Strong documentation habits and willingness to share knowledge and guide junior team members.
• Working knowledge of ITIL best practices and organizational change management.
• Able to perform the position’s physical activities, including hearing, seeing, sitting, standing, talking, and walking.
• Able to commute to multiple site/datacenter locations within the assigned territory as needed.
• Available outside normal business hours or for an ad-hoc on-call schedule to meet maintenance windows, system updates, and operational expectations.
• Must be eligible to work in the country.

Nice To Haves

• Experience with Pure Storage FlashArray and FlashBlade.
• Experience with Automox automated patching.
• Experience with PRTG monitoring.
• Experience with Commvault enterprise backup, recovery, and business continuity.

Responsibilities

• Build, maintain, monitor, and troubleshoot enterprise physical and virtual server infrastructure across Windows Server 2012 R2 through Windows Server 2025 and Enterprise Linux distributions such as RHEL, CentOS, and Ubuntu.
• Administer high-availability Microsoft Hyper-V failover clusters, including host provisioning, lifecycle updates, cluster node expansions, and VM performance tuning.
• Provision, manage, and optimize enterprise SAN/NAS storage arrays, specifically Pure Storage FlashArray and FlashBlade.
• Monitor systems daily and respond immediately to security or usability concerns.
• Administer and engineer Active Directory, Group Policy Objects, and core network services including DNS, DHCP, and IPAM.
• Maintain hybrid identity and mail-flow environments, including Exchange 2019, Microsoft 365 / Exchange Online, Entra ID (Azure AD), SSO, MFA, and conditional access policies.
• Manage the lifecycle and bindings for internal PKI and external SSL/TLS certificates across servers, web applications, and security appliances.
• Design, schedule, and enforce automated OS and third-party patch-management policies across Windows and Linux environments using Automox.
• Configure and maintain PRTG Network Monitor for infrastructure alerting, custom sensors, bandwidth monitoring, and system-health dashboards.
• Manage enterprise backup, recovery, and business-continuity architectures using Commvault; execute test restores, maintain retention standards, and update DR runbooks.
• Support and monitor public and hybrid cloud compute assets and infrastructure across AWS, Azure, and GCP.
• Develop, refine, and maintain PowerShell, Python, or Shell scripts to automate system-administration tasks, API integrations, and bulk object operations.
• Author and maintain technical documentation, system topologies, standard operating procedures, and change-control records.
• Provide Tier 3 escalation support for technical staff and end-user-impacting issues.
• Perform other duties as assigned.
• Carefully review and approve change requests when standing in for management, assessing risks to uptime and security.
• Share knowledge and guide junior team members.

Benefits

• Medical, dental, and vision coverage, effective the first of the month following date of hire.
• Flexible spending account.
• Company-paid life insurance.
• Company-paid short-term disability.
• Voluntary benefits.
• 401(k).
• Paid time off.
• Paid holidays.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior