Windows Server Engineer Needed for Domain Controller Consolidation and Ongoing Server Management

We are looking for an experienced Windows Server and Active Directory engineer to work with our team through completion of an Active Directory and server cleanup project. The environment currently has four Domain Controllers. The goal is to safely consolidate the environment down to one properly configured, healthy, and documented long-term Domain Controller. This project has already partially started. We need someone who can assess the current environment, create the remaining plan, and actively complete the work with us during scheduled screen-share sessions. This is not an advisory-only role. The selected partner will work alongside us to complete the approved changes, validate the environment, and provide final documentation. QUICK SCOPE - Review all Domain Controllers and current roles - Confirm Active Directory, DNS, DHCP, replication, SYSVOL, and FSMO health - Identify the correct long-term Domain Controller - Review Azure / Microsoft Entra user sync - Review firewall authentication, SSL VPN, LDAP, RADIUS, and SSO dependencies - Review file server, application server, backup, failover, and replication dependencies - Review the Windows Server 2012 R2 system for migration or retirement needs - Create a written plan before changes - Move roles and services as needed - Safely demote and retire unnecessary Domain Controllers - Validate all major services after each change - Document the final environment and recommendations NOTE: We already have good documentation on the above that can be verified and confirmed before migration is started. LONG-TERM OPPORTUNITY We are also looking for a dependable long-term partner for future on-premise server projects, including Active Directory, file servers, application servers, Windows Server migrations, upgrades, DNS, DHCP, Group Policy, Azure hybrid identity, firewall authentication, backup, replication, failover, and documentation. REQUIRED EXPERIENCE - Windows Server and Active Directory - Domain Controller migration, demotion, and retirement - DNS, DHCP, FSMO, SYSVOL, replication, and Group Policy - Azure AD Connect or Microsoft Entra Connect Sync - LDAP, RADIUS, SSL VPN, and SSO authentication - File servers, service accounts, failover, replication, backup, and recovery - Windows Server 2012 R2 migration planning - Clear technical documentation and change planning Experience with WatchGuard, Fortinet, SonicWall, or similar firewalls is helpful. Please include a brief example of a similar Active Directory cleanup or Domain Controller consolidation project you completed from assessment through final validation.