Security and Systems Administrator

Reading Co-Operative • Reading, MA

4d

About The Position

The Security & Systems Administrator is responsible for maintaining and securing the organization’s IT infrastructure, with a primary focus on security operations and vulnerability management. This role combines hands-on systems administration with security monitoring, incident response, and continuous improvement of the organization’s security posture. The ideal candidate is a technically strong Windows systems administrator who can proactively identify risks, respond to security events, and effectively communicate with internal users. This position requires strong troubleshooting skills, attention to detail, and a strong sense of urgency.

Requirements

• Strong knowledge of Windows Server
• Strong knowledge of Active Directory, Group Policy
• Strong knowledge of Patch management and system lifecycle maintenance
• Familiarity with security operations tools (e.g., Rapid7 or similar MDR/SIEM platforms)
• Familiarity with vulnerability management practices and tools (e.g., InsightVM, Nessus, Qualys)
• Understanding of core security principles: Endpoint protection, Logging and monitoring, Incident response, Least privilege and system hardening
• Ability to analyze logs, investigate alerts, and troubleshoot complex issues
• Strong problem-solving skills with the ability to address incidents
• Excellent written and verbal communication skills: Ability to document policies, procedures, and technical findings, Ability to communicate clearly with non-technical users
• Bachelor’s degree in information security, IT Infrastructure, or equivalent experience required
• Minimum 2+ years of hands-on experience in Windows Server administration
• Experience working in a collaborative IT environment and supporting internal users

Nice To Haves

• Familiarity with scripting or automation (PowerShell preferred)
• Basic networking knowledge (TCP/IP, firewalls, VPNs)
• Relevant certifications (e.g., Security+, Microsoft, or similar)

Responsibilities

• Administer, maintain, and support Windows Server environments, including Active Directory, Group Policy, and core infrastructure services
• Lead vulnerability management efforts, including scanning, prioritizing, remediation coordination, and reporting
• Monitor the organization’s Managed Detection and Response (MDR) platform (Rapid7), including: Monitoring security logs and alerts, Investigating suspicious activity, Tuning detection rules and improving alert quality
• Monitor and maintain other security systems such as SentinelOne, PhishER, and M365
• Perform security log reviews across systems, endpoints, and network infrastructure
• Respond to security incidents, perform root cause analysis, and document findings
• Implement and maintain system hardening standards and security best practices
• Assist in the development, documentation, and enforcement of security policies, standards, and procedures
• Provide general systems administration support, including patching, upgrades, performance monitoring, and troubleshooting
• Support end users with technical issues as needed, especially where security is involved
• Create and maintain clear technical documentation and user-facing communications
• Participate in after-hours support, including best-effort Saturday phone coverage
• Stay current with emerging threats, vulnerabilities, and security technologies

Benefits

• Choice of medical plans
• Dental and vision coverage
• Flexible spending accounts (FSA)
• Disability insurance
• 401(k) retirement plan
• Employee Assistance Program (EAP)
• Generous paid time off
• Interest-free emergency loan program (up to $1,000, subject to program guidelines)
• Tuition assistance (available to full-time and part-time employees)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level