Active Directory Entra ID & Exchange Engineer

Job Title : Active Directory / Entra ID & Exchange Engineer
Location: McKinney Texas
Type: Onsite Immediate Start

Experience: 8-10 yrs

Role Overview
Were looking for a hands-on AD/Entra ID Engineer who can hit the ground running on day one. The candidate should be capable of installing and configuring a new AD forest/domain and providing expert-level (L3) support across Active Directory and Entra ID environments.

Active Directory & Entra ID

Design build and manage AD forests domains sites and trusts.

Configure and maintain FSMO roles DFS and domain replication.

Administer AD Certificate Services DNS DHCP and OU structures.

Implement and enforce Group Policies (GPOs)aligned with security baselines.

Manage AD groups security permissions and delegation of access.

Perform AD backups restores (authoritative/non-authoritative) and disaster recovery.

Troubleshoot login/authentication issues involving LDAP Kerberos NTLM.

Configure and maintain RBAC MFA and privileged access management.

Conduct AD audits health checks and remediation activities.

Manage AD password policies and fine-grain password policies.

Develop and maintain PowerShell scripts for automation monitoring and reporting.

Troubleshoot configure and maintain Entra ID integrations and Azure AD Connect.

Provide L3 support for AD and Entra ID environments.

Microsoft Exchange (On-Prem & Online)

Install configure and manage Microsoft Exchange Server in hybrid and on-prem environments.

Administer Exchange Online (Microsoft 365) including mailbox provisioning distribution groups and retention policies.

Configure and troubleshoot hybrid mail flowbetween on-prem Exchange and Exchange Online.

Manage Exchange security settings including anti-spam anti-malware and transport rules.

Perform database maintenance DAG configuration and disaster recovery for Exchange environments.

Implement and maintain Exchange certificates Autodiscover and Outlook connectivity.

Monitor and optimize Exchange performance and storage utilization.

Required Skills & Experience

Proven experience installing and configuring AD forests/domains from scratch.

Strong expertise in Windows Server environments.

Hands-on experience with Entra ID (Azure AD) RBAC MFA and identity integrations.

Deep understanding of GPOs DNS DHCP and certificate services.

Strong PowerShell scripting skills for automation and reporting.

Solid grasp of authentication protocols (Kerberos NTLM LDAP).

Experience with AD/Entra ID health checks audits and remediation.

Ability to troubleshoot complex AD replication and sync issues.

2 / 2

Exchange Server administration experience including hybrid deployments and Exchange Online.

Familiarity with enterprise security standards and baseline policies.

Nice to Have

Exposure to hybrid identity solutions.

Knowledge of disaster recovery planning for AD/Entra ID.

Prior experience in a staff augmentation or client-facing role.

Start Date: Immediate

Note: Momento USA is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex pregnancy sexual orientation gender identity national origin age protected veteran status or disability status.