Active Directory Administrator

BizFirst LLC

. Develop C# rule extensions on Forefront Identity Manager servers to synchronize information across SQL, LDAP, and Active Directory data sources .

Posted 10/31/2026contractRemote • United StatesLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in Microsoft Active Directory administration, including Forefront Identity Manager (FIM) rule extensions and C# development. Proficient in automating directory administration using PowerShell and managing complex directory service incidents across multiple environments.

Highest-signal resume keywords

Microsoft Active Directory AdministrationForefront Identity Manager (FIM) DevelopmentPowerShell ScriptingExchange TroubleshootingSQL and LDAP Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C# DevelopmentFIM Rule ExtensionsActive Directory ConfigurationDNS ManagementDHCP ServicesDistributed File System (DFS)File Replication Services (FRS)Directory Service Incident ManagementChange-Control ProcessesTechnical Documentation

Soft Skills

CollaborationProblem-SolvingCommunication

Tools & Technologies

Forefront Identity Manager (FIM)Microsoft Active DirectoryExchange OnlineCITGOVPN

Industry Keywords

Directory ServicesData SynchronizationService Desk ManagementCompliance ProcessesMobile-Device Infrastructure

Tech Stack

Tools & technologies

DNSSQL

About the role

Key responsibilities & impact

Develop C# rule extensions on Forefront Identity Manager servers to synchronize information across SQL, LDAP, and Active Directory data sources
Configure FIM rules for data flows between CDC Atlanta and international offices
Integrate with the HHS Border Directory in collaboration with CDC Active Directory and Messaging teams
Document FIM architecture, configuration, business rules, and data flows
Review and replace legacy data-synchronization scripts with FIM extensions where appropriate
Administer FIM servers, back up code extensions, monitor scheduled jobs, and recover failed jobs within 48 hours
Perform FIM administration through CDC-approved remote methods, including CITGO and VPN
Install, configure, maintain, upgrade, and tune Microsoft Active Directory, DNS, and DHCP services
Install and support DFS, FRS, and file quota/resource management
Conduct server audits, maintain system inventory and technical documentation, and deliver directory service reports
Provide Level 2 and Level 3 Exchange troubleshooting and resolve escalated service desk requests
Build PowerShell and other scripts to automate directory administration, reporting, and routine operations
Support deployments and maintenance projects, including mailbox load balancing and related messaging activities
Support mobile-device infrastructure and Exchange Online productivity enhancements
Follow change-management and compliance processes and maintain service performance standards
Research directory service improvements and coordinate troubleshooting with vendors and other OCIO technical teams
Maintain Active Directory diagrams, host characterization worksheets, and technical records

Requirements

What you’ll need

5–7 years of relevant Microsoft Active Directory or directory services administration experience
Hands-on experience with Forefront Identity Manager (FIM) rule extensions and C# development
Working experience integrating SQL, LDAP, and Active Directory data sources
Experience installing and supporting Active Directory, DNS, DHCP, and related Windows services
Proficiency in PowerShell or similar scripting to automate administration and reporting
Experience troubleshooting Exchange and handling Level 2 or Level 3 escalations
Experience managing directory service incidents and requests through an enterprise service desk and formal change-control processes
Ability to maintain technical documentation, diagnose complex directory issues, and work with other technical teams
Experience with Distributed File System, File Replication Services, and file quota/resource management
Experience supporting Exchange Online enhancements and connected mobile-device services
Experience with identity synchronization spanning multiple offices or government environments

Benefits

Comp & perks

Contract engagement available as W2 or 1099
Remote work through CDC-approved remote access methods, including CITGO and VPN