Senior GCC High Cloud Engineer — Azure & Security Platform Lead

ATOM CYBER SECURITY LLC; Tinley Park (IL); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Life Insurance

Long-Term Disability

401K with company match

Parental leave

Paid time off

Job summary

Atom Cyber Security LLC seeks an experienced infrastructure engineer to lead end-to-end delivery of GCC High and Azure Commercial operations platforms. The role covers tenant provisioning, security toolchain deployment, and legacy tool migration, with a go-live focus and growth into client-facing technical work.

Ideal candidates have hands-on GCC High provisioning, Entra ID governance, and Lighthouse multi-tenant management, plus experience with CrowdStrike Gov and Defender XDR within MSSP

Qualifications

• Candidates must have direct GCC High or M365 Government environment experience.
• Hands-on tenant provisioning and administration for M365 GCC High; Azure Commercial alone does not qualify.
• Experience deploying Microsoft Sentinel MSSP workspaces and cross-workspace analytics.
• Experience deploying and managing Azure Virtual Desktop in Azure Government.
• Proficiency with Entra Identity governance and Privileged Identity Management (PIM).
• Experience with Microsoft Lighthouse multi-tenant delegation for MSSP management.
• Knowledge of Azure Arc onboarding for hybrid endpoints and server management.
• SharePoint GCC High site architecture and document repositories.

Responsibilities

• Provision GCC High tenant and parallel Azure Commercial tenant (sovereign tracks).
• Establish Entra ID baseline across both tenants with governance configuration.
• Deploy Azure Virtual Desktop host pools in Azure Government for secure access.
• Configure Lighthouse delegation for multi-client MSSP management and RBAC.
• Apply MFA and Conditional Access policies across administrative accounts.
• Configure PIM for all privileged roles across tenants.
• Enroll devices into GCC High and Entra ID Intune governance.
• Stand up Defender XDR baseline and CrowdStrike Gov/Commercial endpoints.
• Verify track separation and document network diagrams.
• Migrate legacy tools and build a SharePoint GCC High site structure for runbooks.

Skills

M365 GCC High

Microsoft Sentinel MSSP

Azure Government AVD deployment

Entra ID Governance (PIM/CA)

Microsoft Lighthouse multi-tenant

Azure Arc management

SharePoint GCC High site architecture

Azure MFA & CA policy design

Tools

Azure Government Portal

Microsoft Defender XDR

Azure DevOps Boards

CrowdStrike Gov

Entra ID Portal

Job description

Atom Cyber Security LLC seeks an experienced infrastructure engineer to lead end-to-end delivery of GCC High and Azure Commercial operations platforms. The role covers tenant provisioning, security toolchain deployment, and legacy tool migration, with a go-live focus and growth into client-facing technical work.

Ideal candidates have hands-on GCC High provisioning, Entra ID governance, and Lighthouse multi-tenant management, plus experience with CrowdStrike Gov and Defender XDR within MSSP