Sr. Systems Administrator (NEI-18)

Job Title: Sr Systems Administrator (NEI-18)

Location: Bethesda, MD

CyberData Technologies is seeking a Senior Systems Administrator with a strong background in Windows Server administration, vulnerability mitigation, and cloud migration. The ideal candidate will have hands-on experience with VMware environments, including ESXi host patching, and working knowledge of Nutanix hyperconverged infrastructure. Familiarity with Azure VMware Solution (AVS) is also required. This role demands a proactive problem solver capable of managing both operational and project-based tasks across hybrid infrastructure environments.
Responsibilities:
Perform regular Windows Server patching across production and non-production environments.
Identify, assess, and remediate Windows Server vulnerabilities in alignment with organizational security standards and industry best practices.
Patch and maintain VMware ESXi hosts to ensure platform stability and security.
Manage and optimize virtual infrastructure running on Nutanix, including capacity planning, health monitoring, and performance tuning.
Collaborate with security teams to implement and validate mitigations for discovered vulnerabilities.
Troubleshoot and resolve issues related to Windows servers and hosted applications.
Maintain and optimize VMware infrastructure in on-premises environments.
Support planning and execution of on-premises to cloud migration projects.
Collaborate with cross-functional teams to assess application dependencies and performance requirements during cloud migration.
Ensure compliance with internal security and operational standards during system changes.
Monitor and report system performance and security posture; implement improvements as needed.
Manage workloads using Azure VMware Solution (AVS) for hybrid and cloud environments.
Required Qualifications:
Proven experience with Windows Server patching, hardening, and vulnerability mitigation.
Strong troubleshooting skills with Windows servers and hosted applications.
Hands-on experience with VMware virtualization technologies, including vCenter and ESXi.
Experience patching and managing VMware ESXi hosts in production environments.
Experience with Nutanix infrastructure in an enterprise or production setting.
Demonstrated involvement in on-premises to cloud migration projects.
Familiarity with Azure VMware Solution (AVS).
Solid understanding of system security principles and best practices.
Strong documentation and communication skills.
Ability to work independently and manage multiple priorities in a fast-paced environment.

Preferred Qualifications:
Relevant certifications such as MCSA, MCSE, VCP, Nutanix Certified Professional (NCP), or Azure certifications.
Experience in enterprise-scale infrastructure projects.
Familiarity with patch management automation tools and vulnerability scanning platforms (e.g., Tenable).
Knowledge of infrastructure monitoring tools.
Understanding of ITIL practices and change management.