Senior Microsoft 365 and Active Directory Migration
Rad Hires · Remoto, BR
**Senior Lead Migration Engineer — BitTitan MigrationWiz, Google Workspace \& Microsoft 365** ============================================================================================= **Location:** Remote, any region. Most hours overlap US Eastern time, with some UK coverage. **Engagement:** Hourly contract covering the full program, with a review after the first six weeks. **Seniority:** Senior / Lead **Start:** As soon as possible, ideally by November 2, 2026 **About Rad Hires** ------------------- Rad Hires connects senior remote professionals with US companies. We vet for real, hands\-on expertise and a clean fit, and we're with you from the first call through placement. **About the company** --------------------- Our client is a US\-based managed AI and security firm and Microsoft Solutions Partner. They run identity, security, cloud and migration projects for large enterprises in financial services, insurance, healthcare and manufacturing. They need a senior lead to own the technical delivery of two programs. Both move acquired companies into a global parent organization's existing Microsoft 365 tenant and Active Directory forest. **About the role** ------------------ You'll be the senior technical lead on a distributed engineering team. You'll also be the technical voice in client working sessions and at project board level. You'll own two programs from validation through hypercare: * **Program 1: Active Directory and Microsoft 365 with Quest On Demand Migration.** Scope is about 800 licensed users and 1,100 mailboxes (mostly UK) and about 90 TB across Exchange Online, OneDrive, SharePoint (about 9,000 sites) and file shares. It also covers about 1,500 devices, about 160 SSO apps, about 120 Intune packages, thousands of guest accounts, file servers, and VMware\-hosted servers and virtual desktops. * **Program 2: Google Workspace to Microsoft 365 with BitTitan MigrationWiz.** About 70 users in the UK and Europe on Jamf\-managed Macs. Inbound mail runs through Mimecast. Coexistence is long\-running, and users keep their original domain addresses. Discovery and the solution design for Program 1 are complete, and Program 2 has finished its pilot. Program 2 (BitTitan) is the immediate priority, and Quest experience is a strong plus for Program 1\. The contract runs about six months, through the end of April 2027\. An extension is likely, because further acquisitions are planned into the same tenant. **What you'll do** ------------------ **First six weeks (validation, with a written deliverable each week)** * Review the Google Workspace to Microsoft 365 configuration (MigrationWiz projects, endpoints, user mapping, Google admin settings, mail routing) and write a short as\-built. * Validate the Quest solution design, migration plan, configuration and license counts, and help answer client questions. * Settle open design questions with evidence. These include per\-recipient routing through the email gateway, domain moves between tenants, forest trust and SID history, the file\-share\-to\-SharePoint approach, Entra join vs. hybrid join, and license counts vs. real object counts. * Build the wave schedule, cutover runbook and pilot readiness checks. **Technical leadership** * Own the runbooks, pilot and wave plans, go/no\-go criteria, rollback plans, cutover weekends and hypercare for both programs. * Review and take over design work done by others, and document gaps and risks. * Guide and review the client's engineers, and be the escalation point for migration issues. * Write client updates, decision papers and post\-wave reports, and present options and risks at project board level. **Program 1: Quest On Demand Migration** * Run Quest across AD/Entra ID, Exchange, OneDrive, SharePoint, Teams and Power BI. Use native or other tooling where Quest doesn't cover a workload. * Run Directory Sync, Domain Rewrite, Mailbox Switch and password sync, including SID history across a forest trust. * Migrate devices with the device agent and Desktop Update Agent, coordinated with Intune and Autopilot. * Migrate or re\-permission servers and file servers (ReACL), and move file shares to SharePoint Online with permission mapping and link remediation. * Plan multi\-terabyte SharePoint and OneDrive moves around Microsoft throttling, queue priorities and delta passes. **Program 2: Google Workspace to Microsoft 365** * Administer Google Workspace for the migration: routing and compliance rules, address maps, dual and split delivery, groups, service accounts and API access. * Run MigrationWiz for Gmail and Google Drive: endpoints, licensing, user mapping, Drive permission remapping, delta and final syncs, and BitTitan support cases. * Design and operate coexistence routing across Mimecast, Google Workspace and Exchange Online (connectors, accepted domains, forwarding, address rewriting, SPF, DKIM and DMARC). * Keep calendars, free/busy, groups and workflows working for users split across both platforms. **Microsoft 365 tena