ASRC System Administrator III

The System Administrator III is a senior technical role responsible for architecting, securing, documenting and optimizing enterprise-scale infrastructure across hybrid cloud and on-premises environments. This role drives strategic technology initiatives, ensuring the reliability, security, and performance of mission-critical systems including Windows Server estates, Nutanix/VMware/Hyper-V virtualization platforms, Azure cloud services, and enterprise storage solutions. Beyond hands-on technical execution, this position provides mentorship to IT teams, establishes operational excellence standards, and partners with business stakeholders to align infrastructure capabilities with organizational objectives.

• Architect and implement highly available, scalable infrastructure solutions across hybrid Windows Server, virtualization, and Azure cloud environments to support enterprise business operations.
• Lead the design and management of enterprise virtualization platforms including Nutanix, VMware vCenter/vSAN, and Hyper-V, ensuring high availability, disaster recovery capabilities, and optimized performance across all clusters.
• Administer and optimize Azure cloud services including IaaS, Azure File Services (SMB/NFS), Azure File Sync, and hybrid authentication, ensuring seamless integration with on-premises Active Directory.
• Drive strategic technology initiatives by evaluating, piloting, and integrating emerging infrastructure technologies into production environments aligned with business objectives.
• Execute enterprise-scale capacity planning, performance tuning, and lifecycle management for servers, storage systems, and virtualization platforms to ensure optimal resource utilization.
• Manage complex storage infrastructure including SAN, NAS, backup systems, and cloud storage tiers, ensuring data integrity, availability, and disaster recovery readiness.
• Establish and enforce security frameworks including least-privilege access controls, ACL structures, system hardening, and comprehensive audit compliance across all infrastructure systems.
• Orchestrate patch management and vulnerability remediation across Windows Server fleets, coordinating OS updates, third-party application patches, and security fixes while minimizing business disruption.
• Provide technical leadership and mentorship to system administration teams and junior staff, fostering skill development and adherence to enterprise standards.
• Serve as technical escalation point for critical infrastructure incidents, leading cross-functional troubleshooting efforts and driving complex issues to resolution.
• Collaborate with cross-functional IT teams including security, network, and application groups on integrated technology solutions and infrastructure projects.
• Develop and mature operational frameworks, automation strategies, and best-practice standards to enhance team efficiency and service delivery quality.
• Maintain and optimize Windows Server core services including Active Directory, DNS, DHCP, AD Connect, and Print Services, ensuring enterprise-wide reliability and performance.
• Design and maintain secure file sharing infrastructure with restricted access controls, coordinating FTP services for vendor/partner data exchange with appropriate security protocols.
• Execute comprehensive backup operations, ensuring business-critical file systems and data are successfully protected with verified recovery capabilities across disk, and cloud media.
• Create and maintain detailed technical documentation including system architecture, configuration standards, procedures, and incident resolutions in accordance with enterprise documentation standards.
• Deliver exceptional customer service to internal teams and business partners by communicating technical information clearly, setting appropriate expectations, and providing proactive status updates.
• Take ownership of technical challenges from initial report through complete resolution, ensuring thorough documentation and knowledge transfer throughout the incident lifecycle.

ASRC’s Core competencies include Leading Self,…