Senior System Administrator Job Listing at SPA in Alexandria, VA (Job ID 2025-19647)

Description

Qualifications

Required Qualifications:

Experience: 

• 8+ years of system administration experience, with at least 5+ years managing private cloud and VMware environments.
• 3+ years of hands-on Azure Cloud administration and infrastructure support experience.
• VMware Certified Professional or Advanced Professional (VCP or VCAP) preferred.

Technical Skills: 

• Expert-level knowledge of VMware vSphere, ESXi, vCenter and virtual networking.
• Strong hands-on experience with Azure Compute, Hybrid + Multi-Cloud Management, Identity and Networking.
• Experience with PowerShell, Azure CLI, or other scripting skills for automation and orchestration.

Soft Skills: 

• Strong troubleshooting and analytical skills for diagnosing complex infrastructure issues.
• Excellent communication and collaboration skills for working with cross-functional teams.
• Ability to document technical solutions, infrastructure configurations, and best practices.

Desired Qualifications: 

• Familiarity with regulatory frameworks such as NIST SP 800-53, CMMC, and FedRAMP.
• Familiarity with multi-cloud environments, including AWS or Google Cloud.
• Microsoft Certified: Azure Administrator Associate

Security Clearance Requirement 

• Ability to obtain and maintain a Secret or higher security clearance (if required by the project).

1. Private Cloud Infrastructure Management

• Design, deploy, and maintain VMware-based private cloud environments, ensuring high availability and performance.
• Administer and optimize VMware vSphere, vCenter, DRS, and vSAN to support enterprise workloads.
• Configure and troubleshoot virtual networking, firewalls, load balancing, and micro-segmentation.
• Ensure high availability and disaster recovery (DR) for private cloud infrastructure using vSphere HA and Site Recovery Manager (SRM).

1. Azure Cloud Administration

• Manage and monitor Azure resources, including Azure Virtual Machines (VMs), Virtual Networks (VNet), Load Balancers, and Azure Firewall.
• Implement and maintain hybrid cloud integrations between on-premises private cloud and Azure Cloud.
• Manage Azure Hybrid Identity solutions, Enterprise Applications, Federated Services, and Azure AD B2C.

1. Security, Compliance, and Governance

• Ensure compliance with frameworks such as NIST SP 800-53, CMMC, and ISO 27001 for private and public cloud infrastructures.
• Implement and enforce role-based access control (RBAC) and least privilege principles across VMware and Azure environments.
• Apply security hardening and controls to adhere to regulatory compliance standards.

1. Monitoring & Troubleshooting

• Manage and configure proactive monitoring solutions such as VMware Aria Suite.
• Perform root cause analysis and resolution of complex performance and availability issues.
• Develop alerting and automation to improve operational efficiency and minimize downtime.

1. Collaboration & Support

• Work closely with network, security, and DevOps teams to ensure optimal hybrid cloud performance.
• Provide technical guidance and mentorship to junior system administrators.
• Document processes, infrastructure configurations, and best practices for knowledge sharing.