Data & M365 Migration Engineer

• Migration Execution & Technical Readiness: Plan, build, test, and execute the structured migration of data, identities, and collaboration services into the target tenant.
• M365 & Data Service Migration: Perform controlled migrations across Exchange Online (individual & shared mailboxes), SharePoint Online, OneDrive for Business, and Microsoft Teams.
• Identity & Access Management: Configure, validate, and onboard user identities, maintaining strict access governance throughout the transition.
• Security & Compliance Control: Apply and verify target security controls, including Conditional Access policies, Microsoft Purview, Data Loss Prevention (DLP), and audit logging.
• Pilot & Data Reconciliation: Lead pilot migration runs, perform pre- and post-migration data reconciliation, capture lessons learned, and refine scripts/processes ahead of full execution.
• Hypercare & Service Transition: Provide post-migration hypercare support, issue resolution, detailed technical documentation, and formal knowledge transfer to operational teams.

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes., * M365 & Azure Data Migration: Proven track record delivering end-to-end Microsoft 365 tenant-to-tenant or source-to-target migrations.

• Collaboration & Messaging Stack: Deep hands-on expertise with Exchange Online, SharePoint Online, Teams, and OneDrive data migration tools and techniques.
• Identity & Security: Strong working knowledge of Entra ID (Azure AD), Conditional Access policies, Microsoft Purview, and DLP enforcement.
• Scripting & Automation: Advanced PowerShell (and/or CLI) Scripting capabilities for automated data extraction, migration, reconciliation, and bulk user management.
• Data Verification: Demonstrated experience in data validation, migration reconciliation techniques, and audit logging.

Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.

We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs. By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.

Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users. This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.

Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz. Our services span the full digital delivery life cycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.

We operate as a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise. As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.