Microsoft System Administrator Senior

SAIC • Washington, DC

5d

About The Position

SAIC is seeking a Senior Endpoint Engineer to engineer, secure, and optimize an enterprise endpoint ecosystem of more than 22,000 Windows, macOS, and iOS devices managed through MECM and Microsoft Intune in a co-managed configuration. This hands-on role manages MECM and Intune environments, implements modern management workloads, develops PowerShell automation, and maintains operating-system deployment and patching standards across Windows, macOS, and iOS devices.

The role also supports endpoint configuration baselines aligned with NIST 800-171, advanced technical escalations, deployment and imaging engineering, monthly patching and remediation, cross-functional change management, CMDB maintenance, and operational reporting. SAIC is a mission integrator serving defense, space, intelligence, and civilian markets. The company has approximately 23,000 employees and is headquartered in Reston, Virginia.

Requirements

• Strong hands-on experience with MECM/SCCM, Microsoft Intune, SQL/Excel, ServiceNow, and co-management strategies.
• Practical experience managing Windows workstation and server operating systems, macOS, and iOS lifecycles.
• Advanced PowerShell scripting capabilities, including REST API usage, remediation scripts, and custom tool creation.
• Working knowledge of Entra ID, Conditional Access, and security compliance frameworks such as NIST 800-171.
• Demonstrated experience creating and troubleshooting OS deployment task sequences, driver updates, and patch rings.
• Ability to query SQL databases and build reports using Power BI or SSRS.
• Ability to parse and review log files and large data sets.
• Experience with ITIL change management (CAB) and partnering across security and infrastructure teams.
• Must possess a Microsoft Certified Solutions Expert (MCSE) - Server Infrastructure or equivalent.

Nice To Haves

• Experience with Dell Open Manage Enterprise.
• Linux/Ansible and/or Unix experience.

Responsibilities

• Maintain NIST 800-171 configuration baselines and operational workflows across more than 22,000 devices, and handle advanced technical escalations and complex engineering tasks.
• Engineer and maintain Intune configuration profiles, compliance policies, Conditional Access and Entra ID integrations, and Apple device management for macOS and iOS alongside co-managed MECM workloads.
• Build and test enterprise OS deployment task sequences, driver packages, BIOS configurations, and application packages, including pre-deployment quality assurance validation.
• Execute monthly enterprise patching for Windows and third-party applications, using proactive remediation scripting to meet update compliance targets.
• Develop PowerShell scripts, REST API integrations, and tools to automate engineering tasks and endpoint remediation.
• Collaborate with Security, Identity, and Network teams; participate in CAB change control processes; maintain a CMDB; and build operational dashboards using SQL, SSRS, and Power BI.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed