Senior IAM & Cloud Systems Administrator

Radiant; El Segundo (CA); On-site; USD 134,000 - 190,000; Full time

Benefits offered by this job

Stock: substantial equity grants

Medical coverage

One Medical memberships

Vision/Dental coverage

Parental leave

Lunch provided

Flexible PTO

Remote workday options

Job summary

Radiant is seeking a Senior Systems Administrator to own the Microsoft 365 GCC High environment, including Entra, IAM automation, and endpoint management with Intune, all in a strict regulatory setting.

You will oversee email security, data protection, and SaaS integrations (Box/Slack) while coordinating with IT DevOps for AWS workloads. This hands-on role requires senior-level ownership and collaboration across teams.

Qualifications

• 4+ years of work experience in IT production systems
• 7+ years administering and engineering production systems
• GCC High tenant administration and Entra expertise
• IAM automation and Intune without Group Policy
• Email security and Purview experience in a regulated env
• SaaS/AWS administration and networking fundamentals

Responsibilities

• Own Microsoft 365 GCC High configuration and tenancy
• Lead Entra end-to-end access and app registrations
• Build IAM automation layer with lifecycle provisioning
• Manage Windows/endpoint via Intune and update rings
• Oversee Defender for Office, mail flow, and DLP controls
• Administer Box, Slack, and other SaaS apps
• Oversee AWS workloads and account integration with DevOps
• Drive new platform projects from idea to deployment
• Support CMMC controls with documented evidence

Skills

GCC High administration

Entra

IAM automation

Intune without Group Policy

Email security

SaaS/AWS administration

Networking fundamentals

PowerShell

Python

Microsoft Graph

Education

Bachelor's degree in a related field

Tools

Entra ID

Intune

Defender for Office

Purview

Microsoft Graph

SCIM

Terraform

Bicep

Box

Slack

AWS

Job description

Radiant is seeking a Senior Systems Administrator to own the Microsoft 365 GCC High environment, including Entra, IAM automation, and endpoint management with Intune, all in a strict regulatory setting.

You will oversee email security, data protection, and SaaS integrations (Box/Slack) while coordinating with IT DevOps for AWS workloads. This hands-on role requires senior-level ownership and collaboration across teams.