System Administrator

Full-Time, Direct Hire

Alexander Technology Group is seeking an experienced Systems Administrator for our client located just outside of Boston, MA. This is an excellent opportunity for a hands‑on IT professional who enjoys working across a variety of technologies, troubleshooting complex infrastructure issues, and taking ownership of systems administration responsibilities.

The ideal candidate will have a strong background supporting Windows Server environments, Microsoft 365, Azure, and hybrid infrastructure. This individual will serve as a senior technical resource, handling escalated support issues, maintaining critical infrastructure, and assisting with system improvements, security initiatives, and technical projects.

• Administer, maintain, and troubleshoot Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, and file permissions.
• Support Microsoft 365 and Azure environments, including Exchange Online, SharePoint, Microsoft Entra , and hybrid identity configurations.
• Manage user accounts, permissions, authentication, and access controls across cloud and on‑premises systems.
• Troubleshoot complex infrastructure, networking, server, and application issues, serving as an escalation point for technical support teams.
• Configure, maintain, and troubleshoot networking equipment, firewalls, VPN connections, and wireless infrastructure.
• Assist with server upgrades, migrations, patching, system deployments, and infrastructure improvement projects.
• Monitor system performance, backups, and security tools to maintain reliable and secure operations.
• Support endpoint management, device configurations, software deployments, and system updates.
• Identify opportunities to streamline IT operations through Power Shell scripting and automation.
• Maintain accurate technical documentation, system configurations, troubleshooting procedures, and support records.
• Collaborate with internal teams and external partners to resolve technical issues and implement infrastructure improvements.
• Assist with security initiatives, including endpoint protection, multifactor authentication, vulnerability remediation, and access management.

• 3+ years of professional experience in a Systems Administrator or similar infrastructure‑focused role.
• Strong hands‑on experience with Windows Server, Active Directory, Group Policy, and Microsoft Entra .
• Experience administering Microsoft 365, Exchange Online, and Azure environments.
• Solid understanding of networking fundamentals, including TCP/IP, DNS, DHCP, VPNs, firewalls, and routing.
• Experience troubleshooting complex technical issues across servers, endpoints, applications, and network infrastructure.
• Familiarity with endpoint management, patching, system monitoring, and backup solutions.
• Strong technical documentation, troubleshooting, and problem‑solving skills.
• Excellent communication and customer service skills, with the ability to manage multiple priorities independently.
• Experience supporting multiple environments or working within a Managed Service Provider (MSP) is strongly preferred.
• U.S. citizenship is required due to contractual requirements.

• Experience with Power Shell scripting and IT automation.
• Familiarity with remote monitoring and management (RMM) and professional services automation (PSA) platforms.
• Experience with Microsoft Intune, Conditional Access, MFA, and other Microsoft security technologies.
• Knowledge of virtualization, disaster recovery, and infrastructure migrations.
• Experience supporting security tools, endpoint protection platforms, and vulnerability management processes.
• Previous experience supporting small to midsize business environments.

This position offers the opportunity to work with a broad range of technologies, take ownership of challenging technical issues, and contribute to infrastructure and security improvements. The ideal candidate will be someone who enjoys a hands‑on role, values collaboration, and is interested in continuing to develop their technical expertise.