Abacus Service Corporation · 12 hours ago
Senior Systems Administrator (Cloud & Infrastructure)
Miami, FL
Contract
Onsite
Senior Level
5+ years expAbacus Service Corporation is seeking an experienced Senior Systems Administrator with deep expertise in hybrid cloud environments, enterprise directory services, and virtualized infrastructure. This role requires managing complex systems across on-premises and cloud platforms while maintaining optimal performance, security, and reliability.
Health CareInformation Technology
No H1B
Hiring Manager
Vikram Pitla
Responsibilities
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
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
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
Manage AWS EC2 instances, S3 storage, VPC networking, and security groups
Support hybrid connectivity between on-premises and AWS environments
Develop PowerShell scripts for system automation, reporting, and administrative tasks
Create Azure PowerShell and AWS PowerShell modules for cloud resource management
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
Qualification
Required
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
Company
Abacus Service Corporation
Abacus Service Corporation is provides IT solutions for global health care businesses.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
S
Sam Akunuri
Founder and COO
Company data provided by crunchbase