Senior D365 Business Central Developer (Remote, Contract) [TH023]

About Smart Working At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being. Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally. Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world. About the Role As a Senior D365 Business Central Developer, you will work as a fully embedded, dedicated member of an ERP implementation and consultancy practice, contributing directly to client-facing Business Central implementation, customisation and support projects. This is not an internal systems role. You will deliver Business Central solutions to the company’s own client base, which includes a strong presence in the construction sector, while working closely with consultants and project leads across multiple client engagements. The role is designed for a senior developer who can build long-term familiarity with clients, projects and the codebase, working as a genuine team member and building strong relationships with clients and colleagues. Responsibilities Design, build, and maintain customisations and extensions within Microsoft Dynamics 365 Business Central using AL. Support ERP implementation projects end-to-end: requirements input, configuration, development, testing, and go-live support. Develop and maintain integrations between Business Central and third-party systems / APIs (including Power Platform where relevant). Assist with upgrades and migrations from Dynamics NAV to Business Central where applicable. Troubleshoot and resolve functional and technical issues raised by Storm's clients. Produce clear technical documentation for custom development and configuration work. Work closely with Storm's consultants and project leads across multiple concurrent client engagements. Requirements 5+ years’ hands-on development experience with Microsoft Dynamics 365 Business Central, or Dynamics NAV with recent Business Central transition experience. Strong proficiency in AL language and the Business Central / VS Code development environment. Solid understanding of Business Central data structures, tables, pages and extension architecture. Experience with API-based and third-party system integrations. Comfortable working directly with external clients in a consultancy delivery environment, not just internal stakeholders. Strong written and spoken English, given daily collaboration with an Ireland/UK-based team and clients. Able to integrate as a genuine long-term team member, remaining present and responsive on Slack/Teams during Irish/UK working hours and building real relationships with clients and colleagues. Nice to Have Experience with Power Platform, including Power BI, Power Automate and Power Apps, alongside Business Central. Prior experience specifically in construction, professional services or project-based client sectors. Microsoft Dynamics 365 Business Central certification(s). Experience migrating clients from legacy Dynamics NAV versions.