About
Senior Systems Administrator - Enterprise Infrastructure & Cloud Services
Position Overview
We are seeking an experienced Senior Systems Administrator with deep expertise in hybrid cloud environments, enterprise directory services, and virtualized infrastructure. This role requires a technical professional who can manage complex systems across on-premises and cloud platforms while maintaining optimal performance, security, and reliability.
Key Responsibilities
Azure & Cloud Enterprise Services Administer Azure Enterprise Applications including SSO configuration, conditional access policies, and application lifecycle management Manage Azure Active Directory (Azure AD/Entra ID) for user provisioning, identity governance, and security compliance Deploy and optimize Azure virtual machines, storage solutions, and networking infrastructure Implement Azure security frameworks and monitor compliance across cloud resources Directory Services & Network Infrastructure
Administer Active Directory Domain Services including domain controllers, organizational units, and Group Policy management Manage DNS infrastructure ensuring reliable name resolution across hybrid environments Configure and maintain DHCP services including scope management, reservations, and failover clustering Implement directory synchronization between on-premises AD and Azure AD environments Virtualization & Infrastructure Management
Design and manage virtualized infrastructure including VMware vSphere, Hyper-V, or similar platforms Optimize virtual machine performance, resource allocation, and capacity planning Implement high availability and disaster recovery solutions for virtualized environments AWS Cloud Operations
Manage AWS EC2 instances, S3 storage, VPC networking, and security groups Support hybrid connectivity between on-premises and AWS environments PowerShell Scripting & Automation
Develop PowerShell scripts for system automation, reporting, and administrative tasks Create Azure PowerShell and AWS PowerShell modules for cloud resource management System Administration Excellence
Monitor system performance, troubleshoot complex technical issues, and implement proactive solutions Maintain comprehensive documentation and follow established change management processes Collaborate with application teams while ensuring proper security protocols and governance Required Qualifications
Bachelor's degree in Information Technology, Computer Science, or related field 5+ years of hands-on experience with Azure administration and Azure Enterprise Applications Strong expertise in Active Directory, DNS, and DHCP management Proficient in virtualization technologies and backup solution administration Experience with AWS services and PowerShell scripting Excellent problem-solving abilities and communication skills Demonstrated organizational skills and punctual completion of administrative tasks Proven track record of meeting performance objectives Preferred Certifications
Microsoft Certified: Azure Administrator Associate Microsoft Certified: Identity and Access Administrator Associate VMware Certified Professional (VCP) or similar virtualization certification AWS Certified Solutions Architect or SysOps Administrator Technical Skills Required
Advanced Active Directory and DNS Advanced PowerShell scripting and automation Backup and disaster recovery planning and implementation Change management and ITIL framework knowledge Performance monitoring and capacity planning
Languages
- English
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