Remote M365 & Identity Engineering Lead

Amentum; Cheyenne (WY); Remote; USD 115,000 - 143,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (401(k) match)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking an experienced M365 & Identity Engineer, Lead to design, deploy, and support Microsoft 365 and identity solutions. You will manage Entra ID, Okta, and related services in a cross‑cloud, hybrid environment, ensuring security, governance, and high availability.

This US remote role requires US citizenship and a strong background in IAM and identity lifecycle management. The ideal candidate will lead IT professionals on small projects, implement automation with PowerShell, and

Qualifications

• 8+ years hands-on experience with M365 administration and engineering.
• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Experience in Identity & Access Management in enterprise environments; Okta experience preferred.
• Experience with Active Directory, Entra ID, External Identities (B2B), Conditional Access, RBAC, MFA, and identity lifecycle management.
• Experience supporting hybrid identity (On‑Premises Exchange, Entra ID Connect, federation, sync).
• US Citizenship is required.

Responsibilities

• Design, implement, and maintain M365 services including Exchange Online, Purview, OneDrive, Teams, and related services.
• Manage Entra ID identity services including Conditional Access, External Identities (B2B), MFA, SSO integrations, and identity lifecycle processes.
• Manage Okta and other identity platforms.
• Support for company Email service platforms, including Exchange 2016/SE, Exchange Online, and Proofpoint.
• Develop and enforce M365 governance, security policies, and compliance configurations.
• Troubleshoot and resolve complex issues across the M365 ecosystem, identity platform, and hybrid environments.
• Administer and enhance IAM tools and workflows, including provisioning, deprovisioning, RBAC, and privileged access management.
• Implement automation using PowerShell or other scripting tools to improve operational efficiency.
• Monitor system performance, security posture, and capacity to ensure high availability and reliability.
• Partner with security, data center, and application teams to support integration and cross-functional initiatives.
• Provide technical expertise during audits, risk assessments, and incident response activities.
• Create and maintain technical documentation, diagrams, and standard operating procedures.
• Lead teams of other IT professionals to accomplish small projects.
• Provide guidance or instruction to junior staff.
• Perform other duties as assigned.

Job description

Amentum is seeking an experienced M365 & Identity Engineer, Lead to design, deploy, and support Microsoft 365 and identity solutions. You will manage Entra ID, Okta, and related services in a cross‑cloud, hybrid environment, ensuring security, governance, and high availability.

This US remote role requires US citizenship and a strong background in IAM and identity lifecycle management. The ideal candidate will lead IT professionals on small projects, implement automation with PowerShell, and