Systems Administrator

Atrium•New York, NY

40d

About The Position

Atrium is a WBENC‑certified leader in Extended Workforce Management and Talent Solutions, blending technology and human expertise to help leading brands reimagine how work gets done. Atrium delivers its market-leading solutions through four divisions: Talent Solutions, AtriumWORKS™, HR Advisory Services, and Atrium Innovation Research™ (AIR). All offerings integrate seamlessly to create flexible programs built for the evolving world of work. The Systems Administrator manages and supports the organization's IT infrastructure, ensuring optimal performance, security, and compliance across multiple systems and environments. This role provides hands-on support for M365, Microsoft and Amazon Public Cloud, network security, endpoint management, and end-user technologies, while delivering high-quality support within defined SLAs. Candidates with prior experience in an MSP (Managed Service Provider) environment supporting multiple clients or systems concurrently are strongly preferred.

Requirements

3-5 years of experience in Systems Administration, with exposure to supporting multiple, diverse systems and environments
Prior experience working in an MSP (Managed Service Provider) environment strongly preferred
Proficiency in desktop support and troubleshooting
Hands-on experience administering M365, Azure, and Entra/Intune
Experience with Fortinet network equipment and firewall management
Familiarity with ZTNA, EDR/AV solutions, and vulnerability management practices
Exposure to SOC operations and incident monitoring
Working knowledge of SFTP and secure file transfer protocols
Experience with RMM platforms and ticketing systems
Proficiency in PowerShell and scripting for automation
Strong background in security and compliance administration
Experience providing IT support and training to end users
Ability to meet and exceed SLA requirements
Excellent verbal and written communication skills
Strong documentation and organizational abilities

Nice To Haves

Advanced scripting/automation experience beyond PowerShell
Exposure to enterprise-level security frameworks
Familiarity with ITIL or similar service management methodologies
Previous work in a multi-site, hybrid, or multi-client (MSP) environment
Experience with AV/conferencing system support

Responsibilities

Provide advanced desktop and end-user support, resolving technical issues across hardware, software, and network systems
Administer and maintain M365, Azure, Microsoft and Amazon Public Cloud, and Entra/Intune environments
Manage and support firewall network infrastructure, including firewalls and connectivity
Support endpoint devices, printers, and AV systems
Administer ZTNA, EDR, and AV security solutions to protect endpoints and infrastructure
Support vulnerability management processes and remediation efforts
Monitor and respond to SOC (Security Operations Center) alerts and incidents
Manage SFTP configurations and secure file transfer processes
Administer Access Control systems for physical/logical security
Utilize RMM tools to monitor, manage, and maintain systems across the environment
Log, track, and resolve issues through the ticketing system within SLA timeframes
Develop and maintain PowerShell scripts to automate routine tasks and improve efficiency
Oversee security and compliance administration across IT systems
Train end users in new technologies and best practices
Document processes, incidents, and resolutions
Collaborate with cross-functional teams to implement IT projects
Monitor system performance and proactively address issues
Ensure data integrity, backups, and disaster recovery readiness
Maintain up-to-date knowledge of emerging IT trends and solutions