Microsoft Dynamics 365 Business Central

On behalf of our Client from the UK, Mobilunity is looking for a Microsoft Dynamics 365 Business Central Platform Lead.

Our client is an established UK-based company with a long history and a diverse business structure. They are currently undertaking a major digital transformation to consolidate several business entities onto a single Microsoft Dynamics 365 Business Central platform.

The role combines hands-on implementation and long-term platform ownership. Initially, the focus will be on solution architecture, data migration, financial processes, integrations, testing, and phased go-lives. Once the platform is established, the person will take ownership of its roadmap, continuous improvements, reporting, operations, and a small supporting team as the wider Microsoft technology landscape continues to evolve.

Key Responsibilities:

Leading the re-platforming

• Own the solution architecture: group chart of accounts, dimension design, company structure, intercompany and consolidation.
• Validate the target tenant and environment architecture during mobilisation, with BC SaaS as the preferred destination.
• Own the migration strategy on legacy NAV, and deliver it end to end: extraction, transformation, opening balance loads and the reconciliations that prove them.
• Design the interim bridge from the legacy NAV estate into BC for the period the two systems run alongside each other, with the retirement of NAV planned as a later piece of work.
• Build hands-on. Lead configuration, data loads, test cycles and cutover through each phased go-live, and write production AL where the plan needs it.
• Design the integration layer to the group’s operational systems and set the development standards: AL extensions only, base application untouched, and environment, release and upgrade management aligned to BC release waves.
• Work with finance superusers in each business on process design at the platform boundary; agree what BC does and what stays in the systems feeding it.
• Run each cutover in person: training, floor-walking, first-weeks support and hypercare.
• Direct any contract development capacity on the programme, and coach the internal people who will support the platform with you.

Owning the platform

• Own the run model: release wave management, environment and permissions management, upgrade testing, and the internal support model.
• Deliver the operational scope: job costing and billing on BC, per-job profitability across every business, and the integrations to the operational systems that feed the ledgers.
• Own the reporting architecture: the BC data model, the Azure data estate around it and consolidated group reporting in Power BI.
• Own the roadmap: a prioritised backlog agreed with Finance and the businesses, delivered in regular drops.
• Manage the Microsoft estate around BC: ISV partners, CSP licensing, and the partner relationships the group keeps for specialist work.
• Keep the platform current and controlled: extension compatibility across release waves, permissions and segregation of duties, audit trail, and the controls Finance relies on.

Requirements:

• Multiple full-cycle Business Central implementations delivered end to end, led from the finance side, including at least one greenfield chart of accounts and dimension design.
• A strong NAV and C/AL background combined with BC SaaS implementation experience; the legacy estate is heavily customised NAV on-prem and the target is SaaS.
• Data migration ownership on at least one implementation, from legacy extraction through reconciled opening balances.
• BC finance configuration in depth: posting groups and setups, dimensions, journals, approvals, permissions and the core sales, purchase and finance flows.
• Integration design: APIs and OData, and at least one delivered interface to a non-Microsoft operational system.
• Production AL: enough to set extension standards, review all code and write production AL yourself, with source control and controlled deployment through sandbox and production environments.
• Power BI against ERP data: able to define the BC data model and reporting architecture and build hands-on where needed.
• Experience of running a BC platform after go-live: release wave management, support, upgrades and continuous improvement.
• Able to explain technical and data issues clearly to finance users and senior stakeholders, in person and in writing.
• Upper-intermediate to advanced English proficiency.

Nice to Have:

• Independent: You can take a clear specification and turn it into a working feature without needing
• Personally led an end-to-end NAV (or on-prem BC) to BC SaaS migration.
• Familiarity with the wider Microsoft data estate: Azure Data Factory, Synapse, data lake patterns and Fabric.
• Sector exposure to job-costed or project-based businesses (removals, logistics, construction, field services).
• Jobs, projects or costing module experience.
• AP automation ISVs (Continia or similar).
• Experience building or leading a small in-house ERP or BC team.
• Microsoft certification (MB-800 or equivalent).

Come on board, and let’s grow together!