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!