System Administrator

T12 Technologies is seeking a skilled and service-driven System Administrator to manage and maintain our on-premises and cloud systems on-site at our Waldorf, Maryland office. This is a fully on-site role supporting an on-premises-inclusive environment-physical workstations and office IT, an on-premises Windows Server and Active Directory footprint, and the company network-alongside cloud workloads in Microsoft 365, Microsoft Azure, and Amazon Web Services (AWS), serving diverse federal, state, and healthcare clients. This is a hands-on, player-coach role: roughly 60% systems and cloud administration and 40% Tier 1-2 end-user support. You'll keep mission-critical systems available, secure, and compliant while serving as a trusted technical resource to internal teams and client stakeholders.

Work Environment & Schedule

• On-site: This is a fully on-site position based at T12's Waldorf, Maryland office. It is not a remote or hybrid role; daily in-office presence is required to support physical office IT, end users, and on-premises infrastructure.
• Schedule: Full-time, Monday through Friday during standard business hours.
• On-call / after-hours: Occasional after-hours, weekend, or on-call work is required to perform maintenance windows and meet federal and healthcare service-level agreements (SLAs).
• Environment: An on-premises-inclusive environment that includes on-premises Active Directory (with Group Policy), a Windows Server fleet, physical endpoints and peripherals, the office LAN/Wi-Fi, and hybrid telephony-administered alongside Microsoft 365, Azure, and AWS cloud workloads., * AWS Cloud Administration: Provision, monitor, and maintain AWS services (EC2, S3, IAM, VPC, RDS, CloudWatch), including patching, backups, cost optimization, and security configuration.
• Microsoft Environment Management: Administer Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive), Microsoft Entra ID (Azure AD), Conditional Access, MFA, and Active Directory (users, groups, GPOs).
• Endpoint & Device Management: Manage device compliance, configuration, and application deployment through Microsoft Intune; support onboarding and offboarding of users and hardware.
• System Monitoring & Availability: Monitor system health, capacity, and performance; respond to alerts and resolve incidents to meet SLA commitments.
• Patching, Backup & Recovery: Perform routine patching, updates, backups, and disaster recovery testing across cloud and on-premises systems.
• Security & Compliance: Implement and enforce access controls, configuration baselines, and security hardening aligned with frameworks such as NIST 800-171, HIPAA, and CIS (depending on client vertical).
• Automation & Scripting: Build and maintain PowerShell and/or Bash scripts to automate recurring administrative tasks and reporting.
• Documentation & Knowledge Sharing: Maintain system diagrams, SOPs, runbooks, and asset inventories; contribute to internal knowledge bases.

Help Desk & End-User Support In a small-company environment, the System Administrator is often the first and only point of contact for day-to-day technology issues. This role provides hands-on Tier 1-2 support across phones, computers, and network connectivity, including:

• First-Line Troubleshooting: Serve as the primary point of contact for end-user issues; triage and resolve requests received by phone, email, ticketing system, and in person.
• Desktop & Hardware Support: Diagnose and resolve issues with desktops, laptops, printers, peripherals, and mobile devices; image, configure, and deploy new equipment.
• Telephony & Communications: Troubleshoot phone systems (VoIP/softphone), conferencing, and Microsoft Teams calling-including handset setup, call routing, and voicemail issues.
• Network Connectivity: Resolve local network problems such as Wi-Fi, LAN, VPN, DNS/DHCP, and router/switch/ISP connectivity; coordinate with carriers or vendors to escalate as needed.
• Account & Access Support: Handle password resets, account lockouts, mailbox and shared-drive permissions, and software installation and licensing requests.
• Ticket Management: Log, track, and document all support activity in the ticketing system; follow up to ensure timely resolution and clear communication with users.
• User Onboarding & Offboarding: Set up and decommission user accounts, equipment, and access as employees join or leave the company.

• Hands-on administration experience across both AWS and Microsoft environments, including:
• AWS core services (EC2, S3, IAM, VPC, RDS, CloudWatch).
• Microsoft 365, Microsoft Entra ID (formerly Azure AD), and hybrid identity environments.
• Microsoft Intune and device compliance management.
• Windows Server 2016-2022 and Windows 10/11.
• Strong understanding of networking fundamentals (DNS, DHCP, VPN, firewalls, TCP/IP).
• Familiarity with backup, monitoring, endpoint protection, and email security tools.
• Proficiency with PowerShell and/or Bash scripting and automation.
• Experience providing end-user help desk support and working within a ticketing/ITSM system.
• Strong client communication skills and a professional, solutions-focused demeanor., * 3+ years of experience in a system administration role supporting cloud and on-premises infrastructure.
• Associate's or Bachelor's degree in Information Technology or a related field, or equivalent practical experience.
• Certifications strongly preferred:
• Microsoft 365 Certified: Administrator Expert (MS-102).
• Microsoft Certified: Azure Administrator Associate (AZ-104).
• Microsoft Certified: Identity & Access Administrator Associate (SC-300).
• Microsoft 365 Certified: Modern Desktop Administrator Associate (MD-102).
• CompTIA Security+.
• AWS Certified SysOps Administrator - Associate (or Cloud Practitioner).

Preferred Attributes

• Experience supporting federal, state, or healthcare clients and associated compliance frameworks.
• Familiarity with Microsoft Defender for Endpoint, Entra Conditional Access, and Purview compliance tools.
• Experience with infrastructure-as-code (Terraform, CloudFormation) and ITSM platforms (e.g., ServiceNow).
• U.S. citizenship required. Eligibility for a Public Trust or government security clearance is preferred; clearance sponsorship may be available depending on client assignment.
• Proactive, detail-oriented, and able to manage multiple priorities with minimal supervision.

• Competitive salary
• Free food & snacks
• Opportunity for advancement