Senior Systems Administrator

Overview

Key Responsibilities

Azure & Cloud Enterprise Services

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Senior Systems Administrator

12+ Months Contract

ONSITE - Miami, FL 33102

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 ) 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

Power Shell Scripting & Automation

• Develop Power Shell scripts for system automation, reporting, and administrative tasks
• Create Azure Power Shell and AWS Power Shell 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 Power Shell 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 Sys Ops Administrator

Technical Skills Required

• Advanced Active Directory and DNS
• Advanced Power Shell scripting and automation
• Backup and disaster recovery planning and implementation
• Change management and ITIL framework knowledge
• Performance monitoring and capacity planning