Remote Sr. Systems Engineer

Computer World Services Corp.; España; Remote; EUR 40,000 - 60,000; Full time

Job summary

Computer World Services Corp. is seeking an IT systems administrator to support OFR’s Windows, cloud, virtualization and storage systems with a focus on secure, high-availability IT solutions.

The role emphasizes hybrid Active Directory/Entra ID administration, Office 365 management, and virtualization platform optimization, along with scripting and automation using PowerShell.

Qualifications

• Expert in Active Directory/Entra ID administration in a Hybrid Environment.
• Proficiency in Active Directory administration, FSMO roles, replication, and OU management.
• Knowledge of PKI, CAC/ALT-token authentication, and certificate lifecycle management.
• Experience with Office 365 Management (Hybrid) including Exchange Online, Teams, and OneDrive for Business.
• Experience in Virtualization platforms (e.g., VXRail/VMware/Horizon).
• System administration of Windows using PowerShell, scripting, and automation.

Responsibilities

• Administer and maintain Active Directory (AD) and Group Policy Objects (GPOs).
• Manage user accounts, permissions, and security groups; implement AD best practices and troubleshoot issues.
• Perform regular AD health checks and ensure system integrity; manage DHCP, DNS, and file/directory permissions.
• Utilize PowerShell for automation, reporting, and system management; manage file shares with least-privilege access.
• Administer Office 365 environment, including Exchange Online, Teams, and OneDrive for Business; manage user accounts and licensing.

Tools

Active Directory (AD) Administration

PowerShell

Office 365

VMware

SCCM/MECM

Intune

AWS Windows

GPOs & DHCP/DNS

Job description

The contractor will support OFR’s efforts to engineer, build, configure and maintain the OFR’s Windows, Cloud, Virtualization and Storage systems following best practices to better ensure that OFR designs, deploys and sustains secure, high quality, highly available information technology solutions that align with operational objectives.

Duties include but not limited to:

• Expert in Active Directory/Entra ID administration in a Hybrid Environment

• Proficiency in Active Directory administration, FSMO roles, replication, and OU management
• Knowledge of PKI, CAC/ALT-token authentication, and certificate lifecycle management

• Expert in Microsoft 365 Management (Hybrid) administration including Exchange Online, Teams, and OneDrive for Business.
• Experienced in Virtualization; Manage and optimize virtualization platforms (e.g., VXRail/VMware/Horizon).
• Systems administration of Windows systems using PowerShell, scripting, and automation.
• Desktop/Laptop deployment and management.
• Amazon Web Services Windows instances deployment and administration - a plus
• SCCM (MECM) / Intune administration in a co-managed environment, including patching, package prep and deployment and reporting on Windows devices - a plus
• 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.

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,