Sr. Systems Engineer

Key Tasks & Responsibilities

Microsoft Active Directory: Administer and maintain Active Directory (AD) and Group Policy Objects (GPOs). Manage user accounts, permissions, and security groups. Implement AD best practices and troubleshoot AD-related issues. Perform regular AD health checks and ensure system integrity. Administer DHCP, DNS, and file/directory permissions. Utilize PowerShell for automation, reporting, and system management. Manage folder and file share permissions following least‑privilege principles.

Office 365 Management (Hybrid): Administer Office 365 environment, including Exchange Online, Teams, and OneDrive for Business. Manage user accounts, licensing, and service configurations. Lead and drive Microsoft 365 upgrades, migrations, and platform modernization effort. Implement best practices around identity, access, and compliance policies using Conditional Access, DLP, Sensitivity Labels, and Defender for Office 365.

Virtualization: Manage and optimize virtualization platforms (e.g., VXRail/VMware/Horizon). Oversee virtual machine creation, configuration, and performance tuning. Ensure high availability and disaster recovery solutions for virtual environments. Troubleshoot and resolve virtualization-related issues.

Server Maintenance: Oversee physical and virtual servers Monitor server performance, conduct regular updates, and perform backups. Troubleshoot and resolve server issues to minimize downtime. Implement and manage server security patches and updates.

Documentation and Reporting: Maintain accurate and up-to-date documentation for all IT systems and procedures. Create and manage system diagrams, configuration records, and troubleshooting guides. Generate regular reports on system performance, security incidents, and project status.

Collaboration and Support: Work closely with other IT staff, departments, and external vendors to resolve technical issues. Provide guidance and mentorship to junior IT staff and helpdesk personnel. Participate in IT planning and strategy sessions.

Education & Experience

10+ or more years of IT experience in an Active Directory environment

Experienced in M365 Hybrid environment (on-prem / M365)

Experience with Windows PowerShell scripting.

Must have experience in the following technologies

Expert in Active Directory/Entra ID administration in a hybrid environment

Experience with Okta, including installation, configuration, and migrations

Certificate lifecycle management

Expert in Microsoft 365 administration

VxRail / VMware / Horizon management and administration

Systems administration of Windows systems using PowerShell, scripting, and automation

Manage Engine tools (ADManager/ADAudit/AD360)

BeyondTrust (Bomgar) solutions experience a plus (Remote Assistance/PAM)

Windows server deployment in cloud (AWS) and virtualized environments (VMware) (Windows 2019/20222 experience preferred)

Documentation, development of system diagrams and SOPs

Conducting integration testing, transition and acceptance and training from the Engineering phase to the production phase.

Coordinate activities at the system interface boundaries with other contractors and Government organizations.

Preference given for experience in the following technologies:

Active Directory/Entra ID

Microsoft 365 administration

Certificate lifecycle management

Skilled in using Active Directory Group Policies to manage and configure security settings on Windows as well as general Active Directory administration

Worked in VMware environments with Horizon VDI solutions or Windows AWS Workspaces solution

MDM Solution such as Intune

Excellent written and verbal communications skills

Certifications

Preference given for Microsoft certifications

Preference given for VMWare certification

Preference given for Okta certification

Security Clearance

Public Trust High (Tier 4/BI) Risk Level

Must be a US citizen or Lawful Permanent Resident

Other (Travel, Work Environment, DoD 8570 Requirements, Administrative Notes, etc.)

The position is remote but preference is given to candidates in the DC metro area.