Tier III Service Desk

Global Enterprise Services, Llc; Fort Meade (MD); Hybrid; USD 145,000 - 160,000; Full time

Job summary

Global Enterprise Services, Llc is seeking an experienced Tier 3 Service Desk Engineer to provide advanced technical support for enterprise endpoint migrations.

The role requires an active Secret security clearance, will involve Windows endpoint troubleshooting, and collaboration with Endpoint Engineering, Infrastructure, Security, and Service Desk teams to ensure a stable end-user experience during migration activities.

Qualifications

• Experience providing Tier 3 / advanced technical support in a large enterprise environment.
• Strong troubleshooting with Windows endpoints and Microsoft 365.
• Experience with endpoint deployment and migration technologies (Intune, MECM/SCCM, Autopilot).
• Ability to analyze logs and diagnose complex issues across networks and applications.
• 8570 compliant and able to work in security-sensitive environments.

Responsibilities

• Provide Tier 3 support for endpoint migration, deployment, provisioning, and post-migration stabilization.
• Troubleshoot complex Windows endpoint issues including OS, drivers, apps, and authentication.
• Support migration activities: device replacement, OS upgrades, hardware refreshes, and user cutover.
• Investigate failures, provide escalation guidance, and document runbooks.
• Collaborate with Endpoint Engineering and other teams to identify root causes and remediation.
• Support endpoint management platforms such as Intune, MECM/SCCM, Autopilot.
• Troubleshoot Microsoft 365 services and endpoint-related applications and VPN access.
• Assist with endpoint security controls, encryption, and policy troubleshooting.
• Develop technical documentation and runbooks; analyze incident data for trends.
• Coordinate migrations, after-hours support, and vendor escalations as needed.
• Ensure incidents and service requests are documented per ITSM processes.

Skills

Troubleshooting

Windows 10/11

Microsoft 365

Endpoint management

DNS/DHCP/TCP/IP

8570 compliance

Incident management

Team collaboration

PowerShell scripting

Education

High School Diploma or equivalent

Tools

Microsoft Intune

MECM/SCCM

Autopilot

Active Directory/Entra ID

Group Policy

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Remote, Fort Meade, MD, US

2 days ago Requisition ID: 1399

$145,000.00 To $160,000.00 Annually

We are seeking an experienced Tier 3 Service Desk Engineer to provide advanced technical support and operational expertise in support of enterprise endpoint migration initiatives. This role will serve as a senior escalation point for complex endpoint issues and will partner closely with Endpoint Engineering, Infrastructure, Security, and Service Desk teams to ensure successful migration activities and a stable end-user experience.

The ideal candidate will have strong troubleshooting skills across Windows endpoints, enterprise applications, identity, networking, device management, and endpoint security, along with the ability to diagnose and resolve issues that cannot be addressed through standard Tier 1/Tier 2 support processes.

CLEARANCE REQUIREMENT: Must hold an active Secret security clearance prior to start. (US Citizenship required)

Key Responsibilities

• Provide Tier 3 technical support for issues associated with endpoint migration, deployment, provisioning, and post-migration stabilization.
• Troubleshoot complex Windows endpoint issues involving operating systems, drivers, applications, profiles, authentication, networking, peripherals, and device configuration.
• Support endpoint migration activities including device replacement, operating system upgrades, hardware refreshes, profile/data migration, application deployment, and user cutover.
• Investigate and resolve migration failures, deployment errors, application compatibility issues, configuration problems, and recurring endpoint incidents.
  Serve as the escalation point for Tier 1 and Tier 2 Service Desk teams and provide technical guidance and knowledge transfer.
• Partner with Endpoint Engineering and other technical teams to identify root causes and develop sustainable remediation strategies.
• Support endpoint management platforms such as Microsoft Intune, Microsoft Configuration Manager (SCCM/MECM), Autopilot, or comparable enterprise management technologies.
• Troubleshoot Microsoft 365, Teams, Outlook, OneDrive, authentication, VPN, printing, and other business-critical endpoint services.
• Assist with endpoint security controls, including device compliance, encryption, endpoint protection, and security policy troubleshooting.
• Develop and maintain technical documentation, knowledge articles, troubleshooting procedures, and migration runbooks.
• Analyze incident and migration data to identify trends, recurring failures, and opportunities for automation or process improvement.
• Participate in migration waves, cutovers, hypercare, and other scheduled deployment activities, including occasional after-hours support when required.
  Coordinate with vendors and third-party support organizations when escalation outside the internal environment is necessary.
• Ensure incidents and service requests are accurately documented and resolved in accordance with established service management processes.

Required Qualifications

• Requires High School Diploma or equivalent and 2+ years of prior relevant experience
• 5+ years of experience in enterprise IT support, desktop engineering, endpoint management, or service desk operations.
• Demonstrated experience providing Tier 3 / advanced technical support in a large enterprise environment.
• Strong troubleshooting experience with Windows 10/11 endpoints and Microsoft 365.
• Hands-on experience with endpoint management and deployment technologies such as Microsoft Intune, MECM/SCCM, Autopilot, Group Policy, and Active Directory/Entra ID.
• Experience supporting enterprise endpoint migrations, hardware refreshes, operating system upgrades, or large-scale device deployments.
• Strong understanding of networking fundamentals including DNS, DHCP, TCP/IP, VPN, Wi-Fi, and authentication.
• Experience troubleshooting endpoint applications, drivers, peripherals, certificates, profiles, and system configuration.
• Ability to analyze logs and system information to isolate complex technical issues.
• Strong incident management, problem management, and root-cause analysis skills.
• Excellent written and verbal communication skills.
• Ability to work independently while collaborating effectively across technical teams.
• Must maintain and be 8570 compliant.

Desired Qualifications

• Experience with Microsoft Autopilot and modern endpoint management.
• Experience with PowerShell scripting and endpoint automation.
• Familiarity with Microsoft Entra ID, Conditional Access, Defender for Endpoint, BitLocker, and endpoint compliance.
• ITIL certification or experience working within an ITIL-based service management environment.
• Microsoft certifications related to endpoint administration, Microsoft 365, or Azure.
• Experience working in a project-based migration or transformation environment