System Administrator

Alexander Technology Group; Somerville (MA); On-site; USD 80,000 - 110,000; Full time

Job summary

Alexander Technology Group is seeking an experienced Systems Administrator to join our client near Boston, MA. This onsite role requires hands-on management of Windows Server, AD, and hybrid infrastructure, with responsibilities spanning identity, security, and cloud services.

The ideal candidate will have strong troubleshooting skills, experience with MSP environments, and a proactive approach to system improvements.

Qualifications

• 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 ID.
• 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.

Responsibilities

• Administer, maintain, and troubleshoot Windows Server environments, including AD, GPO, DNS, DHCP, and file permissions.
• Support Microsoft 365 and Azure environments, including Exchange Online, SharePoint, Entra ID, 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 PowerShell 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.

Skills

Windows Server

Active Directory

Group Policy

Microsoft Entra ID

Microsoft 365

Azure

Exchange Online

Networking basics

VPNs

Firewalls

PowerShell

Endpoint management

Documentation

Troubleshooting

MSP experience

Customer service

Communication

RMM PSA

Intune

MFA

Virtualization

DR & migrations

Security tools

SMB experience

Job description

Systems Administrator – Somerville, MA (Fully Onsite)

Employment Type

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.

Key Responsibilities

• 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 ID, 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 PowerShell 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.

Required Qualifications

• 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 ID.
• 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.

Preferred Qualifications

• Experience with PowerShell 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.

Why Consider This Opportunity?

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.