Systems Administrator - Platform Migration & Merge Specialist

<p style="min-height:1.5em"><strong><u>Systems Administrator - Platform Migration &amp; Merge Specialist</u></strong></p><p style="min-height:1.5em"><strong>Location:</strong> Basingstoke (hybrid)</p><p style="min-height:1.5em"><strong>Job Type: </strong>Fixed Term Contract (Until 31st March 2027)</p><p style="min-height:1.5em"><strong>Salary: </strong>£50k - 80k (Pro Rated for period of hire June26-Mar27)</p><p style="min-height:1.5em"><strong>Reporting To:</strong> The IT Director</p><p style="min-height:1.5em"><strong>Key Responsibilities:</strong></p><p style="min-height:1.5em"><strong><u>Google Workspace to M365 and M365 to M365 Migrations</u></strong></p><p style="min-height:1.5em"><strong>Role Overview</strong></p><p style="min-height:1.5em">Reporting to the IT Director, this role provides the technical leadership and hands-on delivery required to continue a multi-phase collaboration platform consolidation programme across the group. The programme is migrating several business units onto a single Microsoft 365 tenant, retiring legacy Google Workspace and standalone Microsoft 365 environments along the way.</p><p style="min-height:1.5em">You will be responsible for overseeing in-flight migrations, planning and executing future migrations, and decommissioning environments that have already been transitioned. The work spans Microsoft 365 tenant-to-tenant migrations, Google Workspace to Microsoft 365 migrations, and the coexistence, cutover and stabilisation activities that surround them.</p><p style="min-height:1.5em"><strong>Key Responsibilities</strong></p><p style="min-height:1.5em"><em>Migration Delivery</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Take ownership of in-flight and upcoming platform migrations, including both Microsoft 365 to Microsoft 365 (tenant consolidation) and Google Workspace Enterprise to Microsoft 365 transitions.</p></li><li><p style="min-height:1.5em">Design and execute migration approaches for mail, calendars, contacts, files, chat and identity, using the Microsoft Migration Toolset (Exchange Online migration, SharePoint and OneDrive migration tooling) and complementary third-party tooling where appropriate.</p></li><li><p style="min-height:1.5em">Manage coexistence periods where dual systems operate in parallel, including mail flow configuration, calendar interop, free/busy visibility, and delta synchronisation.</p></li><li><p style="min-height:1.5em">Plan and execute cutover activities including domain MX changes, primary SMTP swaps, UPN transitions, and the controlled retirement of source environments.</p></li><li><p style="min-height:1.5em">Write and maintain PowerShell scripts that interact with Exchange Online, Microsoft Graph, Entra ID and SharePoint for bulk operations, validation, reporting and automation.</p></li></ul><p style="min-height:1.5em"><em>Discovery and Analysis</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Develop a thorough understanding of source environments before migration, including users, groups, mail, files, shared drives, calendar resources, chat, third-party integrations and operational workflows.</p></li><li><p style="min-height:1.5em">Use Google Admin tools, GAM, Microsoft Graph, PowerShell, Microsoft Migration Manager and other appropriate tooling to query, analyse and report on source data.</p></li><li><p style="min-height:1.5em">Identify migration risks, edge cases and dependencies, including shared mailboxes, delegations, calendar resource booking, SaaS authentication dependencies, and cross-document references such as Google Sheets IMPORTRANGE.</p></li><li><p style="min-height:1.5em">Document findings and recommend approaches to address them.</p></li></ul><p style="min-height:1.5em"><em>Identity, Licensing and Coexistence</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Plan and implement identity strategies that accommodate Entra ID, Google federation and the broader SaaS application landscape during transitions.</p></li><li><p style="min-height:1.5em">Manage licensing transitions across Microsoft 365 and Google Workspace, including Cloud Identity downgrades for retained identity-only accounts.</p></li><li><p style="min-height:1.5em">Maintain mail flow integrity across domains during coexistence, including accepted domain types, forwarding configurations, primary SMTP and alias management.</p></li></ul><p style="min-height:1.5em"><em>Tenant Decommissioning</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Oversee the controlled decommissioning of source environments after successful migration, covering data retention, identity downgrade, licence release and tenant retirement.</p></li><li><p style="min-height:1.5em">Coordinate retention of legacy native content as a safety net where required.</p></li><li><p style="min-height:1.5em">Manage SaaS application transitions from legacy identity providers to Entra ID single sign-on.</p></li></ul><p style="min-height:1.5em"><em>Stakeholder Engagement and Proposal Support</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Provide the technical analysis and detailed planning required by the IT Director and CTO to build migration proposals for leadership approval.</p></li><li><p style="min-height:1.5em">Communicate progress, risks and decisions through Steering Committee forums.</p></li><li><p style="min-height:1.5em">Translate technical detail for non-technical audiences in user communications, change management materials and service desk guidance.</p></li></ul><p style="min-height:1.5em"><em>Post-Migration Support</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Provide hypercare support during and after migration cutovers.</p></li><li><p style="min-height:1.5em">Engage directly with senior stakeholders and VIP users to triage and resolve complex issues.</p></li><li><p style="min-height:1.5em">Iterate on the support model based on real-world feedback and post-migration metrics.</p></li></ul><p style="min-height:1.5em"><strong>What We're Looking For</strong></p><p style="min-height:1.5em"><em><strong>Essential</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Strong administrative expertise in Microsoft Entra ID, Microsoft 365 (Exchange Online, SharePoint Online, OneDrive, Teams) and Google Workspace Enterprise.</p></li><li><p style="min-height:1.5em">Proven experience delivering tenant-to-tenant Microsoft 365 migrations and Google Workspace to Microsoft 365 migrations.</p></li><li><p style="min-height:1.5em">Strong PowerShell skills, including writing scripts that interact with Microsoft Graph, Exchange Online and Entra ID for import, export, validation and automation tasks.</p></li><li><p style="min-height:1.5em">Hands-on experience with the Microsoft Migration Toolset (Exchange Online migration, SharePoint Migration Manager, OneDrive migration) and Google Workspace administration tools including GAM.</p></li><li><p style="min-height:1.5em">Practical understanding of mail flow during migration: accepted domain types, MX cutover, forwarding, primary SMTP and alias strategies, and calendar interop configuration.</p></li><li><p style="min-height:1.5em">Experience decommissioning Google Workspace and Microsoft 365 tenants in a controlled way, including identity-only downgrades to preserve SaaS authentication where needed.</p></li><li><p style="min-height:1.5em">Ability to communicate complex technical concepts to both technical and non-technical stakeholders.</p></li><li><p style="min-height:1.5em">Strong analytical and problem-solving skills, with the patience to work through edge cases methodically.</p></li><li><p style="min-height:1.5em">A proactive, solution-oriented mindset and the ability to manage multiple migration workstreams simultaneously.</p></li></ul><p style="min-height:1.5em"><em><strong>Desirable</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Familiarity with third-party cloud migration tooling such as Movebot, CloudM or BitTitan.</p></li><li><p style="min-height:1.5em">Experience administering Atlassian (Confluence, Jira) and Slack, including merging or consolidating instances.</p></li><li><p style="min-height:1.5em">Experience with Intune and Kandji device management during platform transitions.</p></li><li><p style="min-height:1.5em">Awareness of Microsoft Purview sensitivity labelling and DLP, and the impact these have on migration tooling and post-migration document workflows.</p></li><li><p style="min-height:1.5em">Power Platform familiarity for rebuilding migrated automations.</p></li></ul><p style="min-height:1.5em"><strong>Rewards &amp; Benefits</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Annual Leave: 25 days + 8 public holidays</p></li><li><p style="min-height:1.5em">Enhanced Pension Scheme: 5% matching</p></li><li><p style="min-height:1.5em">Flexible Working: Hybrid model (2 days in the office per week)</p></li><li><p style="min-height:1.5em">Wellness: Complimentary Unmind app, onsite gym (Basingstoke)</p></li><li><p style="min-height:1.5em">Exclusive Perks: Access to sporting events and tickets, Sony Group Company<br />discounts</p></li></ul><p style="min-height:1.5em"><strong>Equal Opportunity Employer<br /></strong>Hawk-Eye is committed to fostering an inclusive and diverse workplace. We ensure all<br />employees are treated fairly, regardless of gender, marital status, race, nationality, religion,<br />age, disability, or union membership status. We value diversity and strive to create an<br />environment where everyone can reach their full potential.<br /><br /><strong>Apply Today!<br /></strong>This is a fantastic opportunity to join Hawk-Eye Innovations and make a significant impact in sports technology. If you're looking for a role where you can solve real-world problems at scale, we’d love to hear from you!</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div><p>Find more <a href="https://www.arbeitnow.co.uk/english-speaking-jobs">English Speaking Jobs in United Kingdom</a> on Arbeitnow</a>