Sector: Infrastructure & Operation

Location: International

Type: Interim

Ref: BBBH72800_1789766844

Salary: Negotiable

We are seeking a hands-on Google Workspace Migration Specialist to ensure the underlying network does not delay or disrupt Microsoft 365 to Google Workspace migration.

The successful candidate will directly drive three core business outcomes: ensuring a blocker-free technical environment, delivering an exceptional user migration experience, and building internal capability to manage the platform post-launch.

Key Responsibilities & Outcomes

Technical Readiness & Infrastructure

• Firewall readiness: implement the firewall configuration changes required for Google Workspace.


• Network validation: validate network/firewall rules and remediate gaps or conflicts.


• Identity readiness: configure network-dependent identity controls such as IP allow-listing and conditional-access locations.


• Successful mail cutover: support DNS/MX changes and validate mail flow between the Microsoft and Google environments.


• Security & compliance: ensure network changes comply with Fifty5Blue security policies and regulatory requirements.


• Separation alignment: coordinate network changes with the wider Fifty5Blue Separation programme and obtain required sign-offs.


• Successful UAT/go-live: diagnose and resolve network connectivity issues during testing and migration.


• Documented environment: provide an auditable record of network and firewall changes and support knowledge transfer.


• Controlled cutover: support network change freezes during migration/cutover windows.


• Wider network engineering: provide routing, switching, VPN, load balancing and segmentation expertise where required.

Migration Execution & User Support

To ensure users can successfully move to and operate on Google Workspace while Fifty5Blue builds its permanent support capability.

• Effective 2nd/3rd-line support for Gmail, Drive, Calendar, Docs and Meet.


• Successful onboarding of users during each migration wave.


• User adoption: hands-on support for employees unfamiliar with Google Workspace and resolution of adoption/friction issues.


• Google Workspace administration: user/OU management, licensing and basic security/DLP administration.


• Technical escalation: manage complex issues through to the migration technical team.


• Knowledge base: document recurring issues and FAQs.


• Knowledge transfer: prepare Fifty5Blue's permanent Google Workspace support team to take over.


• Migration-wave support: maintain sufficient, professional support during peak migration periods.