Systems Administrator

About Atrium

Overview

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.

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

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Qualifications

Required Experience/Skills

• 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

Preferred Experience/Skills

• 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

Physical Requirements

• Ability to sit for extended periods of time
• Ability to reliably commute to our NYC office 4 days per week

Education Requirements

• Bachelor’s degree in information technology, Computer Science, or related field (or equivalent practical experience)
• Relevant certifications (e.g., Microsoft Certified: Azure Administrator, CompTIA Security+) preferred

Benefits

Benefits

• Atrium Care Package available upon eligibility (including healthcare plans, discount programs, and paid time off)
• Professional development opportunities
• Inclusive and supportive work culture
• Employee wellness programs
• Retirement savings plan

Compensation

The anticipated base salary range for this position is $80,000-85,000 annually. Actual compensation will be determined based on factors including experience, skills, qualifications, and market considerations.

Pay Range

EEO Statement