System Administrator

Benefits

* Competitive salary * Free food & snacks * Opportunity for advancement 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.

Key Responsibilities

• AWS Cloud Administration: Provision, monitor, and maintain AWS services (EC2, S3, IAM, VPC, RDS, CloudWatch), including patching, backups, cost optimization, and security configuration.
• **Microsoft Environm...