What are the responsibilities and job description for the Systems Administrator- Hybrid position at Calance US?
We are hiring Systems Administrator- Hybrid for a Contract position in new york, NY
Systems Administrator HPE Synergy / Windows / Vulnerability Management
Systems Administrator to support and secure a large-scale Windows server environment across on-premises and hybrid infrastructure platforms. The ideal candidate will possess expert-level experience with VMware, Windows Server administration, Active Directory, and server patching/vulnerability management.
This role will focus heavily on operational stability, server lifecycle management, security remediation, patch governance, and enterprise infrastructure support. Experience with HPE Synergy is considered a strong plus but is not required.
The successful candidate should be comfortable operating in enterprise environments with formal change management, security standards, and high availability requirements.
Key Responsibilities
Design, implement, administer, and support enterprise Windows Server environments across physical and virtual infrastructure
Manage and maintain VMware virtualized infrastructure, including provisioning, performance optimization, troubleshooting, and lifecycle operations
Administer Windows Server operating systems (2019 2025), including:
oActive Directory
oGroup Policy
oDNS
oDHCP
oFile and print services
Support and maintain HPE Synergy composable infrastructure and HPE OneView management tools (nice to have)
Plan, coordinate, and execute enterprise server patching cycles across production environments
Perform vulnerability remediation activities, including:
oReviewing vulnerability scanner findings
oCoordinating remediation efforts
oTracking compliance and closure
Utilize enterprise patching and vulnerability management platforms such as Ivanti or comparable tools
Collaborate with security, networking, and application teams to align patching and remediation activities with operational requirements
Develop and maintain PowerShell scripts and automation processes to improve operational efficiency
Monitor server performance, availability, capacity, and operational health
Support backup, recovery, and business continuity processes for server infrastructure
Maintain technical documentation, operational procedures, and audit-related records
Participate in on-call support rotation and provide Tier 2/Tier 3 infrastructure support
Required Skills & Experience
Expert-level experience administering Windows Server environments (2019 2025)
Expert knowledge of:
oActive Directory
oGroup Policy
oWindows server hardening
oEnterprise infrastructure operations
Expert-level VMware administration experience
Strong hands-on experience with enterprise server patching and vulnerability management
Experience using patch management platforms such as:
oIvanti
oSCCM/MECM
oWSUS
oComparable enterprise tools
Proven experience coordinating and executing patching cycles in production environments
Strong understanding of vulnerability remediation workflows and security best practices
PowerShell scripting experience for automation and operational support
Excellent troubleshooting, communication, and documentation skills
Ability to work effectively across infrastructure, security, and application support teams
Preferred Qualifications
Experience with HPE Synergy and HPE OneView
Experience working within hybrid cloud environments
Familiarity with enterprise change management and ITIL processes
Exposure to vulnerability scanning and compliance reporting tools
Relevant certifications such as:
oVMware VCP
oMicrosoft Certifications
oSecurity
oOther infrastructure/security certifications
Technical Environment
VMware vSphere / ESXi
Windows Server 2019 2025
Active Directory & Group Policy
HPE Synergy & HPE OneView
Ivanti Patch & Vulnerability Management
SCCM / MECM / WSUS
PowerShell
Hybrid Infrastructure Environments
Estimated Pay Range: 65-75
Systems Administrator HPE Synergy / Windows / Vulnerability Management
Systems Administrator to support and secure a large-scale Windows server environment across on-premises and hybrid infrastructure platforms. The ideal candidate will possess expert-level experience with VMware, Windows Server administration, Active Directory, and server patching/vulnerability management.
This role will focus heavily on operational stability, server lifecycle management, security remediation, patch governance, and enterprise infrastructure support. Experience with HPE Synergy is considered a strong plus but is not required.
The successful candidate should be comfortable operating in enterprise environments with formal change management, security standards, and high availability requirements.
Key Responsibilities
Design, implement, administer, and support enterprise Windows Server environments across physical and virtual infrastructure
Manage and maintain VMware virtualized infrastructure, including provisioning, performance optimization, troubleshooting, and lifecycle operations
Administer Windows Server operating systems (2019 2025), including:
oActive Directory
oGroup Policy
oDNS
oDHCP
oFile and print services
Support and maintain HPE Synergy composable infrastructure and HPE OneView management tools (nice to have)
Plan, coordinate, and execute enterprise server patching cycles across production environments
Perform vulnerability remediation activities, including:
oReviewing vulnerability scanner findings
oCoordinating remediation efforts
oTracking compliance and closure
Utilize enterprise patching and vulnerability management platforms such as Ivanti or comparable tools
Collaborate with security, networking, and application teams to align patching and remediation activities with operational requirements
Develop and maintain PowerShell scripts and automation processes to improve operational efficiency
Monitor server performance, availability, capacity, and operational health
Support backup, recovery, and business continuity processes for server infrastructure
Maintain technical documentation, operational procedures, and audit-related records
Participate in on-call support rotation and provide Tier 2/Tier 3 infrastructure support
Required Skills & Experience
Expert-level experience administering Windows Server environments (2019 2025)
Expert knowledge of:
oActive Directory
oGroup Policy
oWindows server hardening
oEnterprise infrastructure operations
Expert-level VMware administration experience
Strong hands-on experience with enterprise server patching and vulnerability management
Experience using patch management platforms such as:
oIvanti
oSCCM/MECM
oWSUS
oComparable enterprise tools
Proven experience coordinating and executing patching cycles in production environments
Strong understanding of vulnerability remediation workflows and security best practices
PowerShell scripting experience for automation and operational support
Excellent troubleshooting, communication, and documentation skills
Ability to work effectively across infrastructure, security, and application support teams
Preferred Qualifications
Experience with HPE Synergy and HPE OneView
Experience working within hybrid cloud environments
Familiarity with enterprise change management and ITIL processes
Exposure to vulnerability scanning and compliance reporting tools
Relevant certifications such as:
oVMware VCP
oMicrosoft Certifications
oSecurity
oOther infrastructure/security certifications
Technical Environment
VMware vSphere / ESXi
Windows Server 2019 2025
Active Directory & Group Policy
HPE Synergy & HPE OneView
Ivanti Patch & Vulnerability Management
SCCM / MECM / WSUS
PowerShell
Hybrid Infrastructure Environments
Estimated Pay Range: 65-75