Rob B.

I build Umbraco platforms and the .NET systems behind them: payments, subscriptions, CRM/ERP connections and custom backoffice tools. I also handle Umbraco upgrades and Sitecore-to-Umbraco migrations. .NET development since 2007. $100K+ earned on Upwork. Built the original architecture and first production release of a multi-country commerce platform as its sole developer. PROJECTS THAT SHOW THE WORK • Digital Gambit — built a multi-country Umbraco/.NET commerce platform from scratch as sole developer of the original architecture and first release. It combines localised catalogues, prepaid bundles, recurring subscriptions, stored-value top-ups and integrations with payments, the customer app, CRM and invoicing. A wider engineering team later continued its development. • Multiradiance Medical — collaboration since 2015 across multiple websites. Completed a Sitecore-to-Umbraco 17 migration, including content models, structured content and media migration, and custom import tooling. • Infusion ERP — built a .NET REST/OpenAPI gateway with around 50 endpoints over an existing WPF/Visual FoxPro system, making its functionality available to a modern web frontend while retaining the legacy core. • Ronson — developed an Umbraco 13 website and catalogue for around 600 construction projects, with custom backoffice dashboards, automatic geocoding, maps, filtering and tools for non-technical editors. WHERE I CAN HELP • Umbraco upgrades, CMS rebuilds and Sitecore migrations • Custom Umbraco backoffice, content models and editorial workflows • C# / ASP.NET Core services, REST APIs and legacy ERP integration • Stripe, PayPal and Chargebee payments and subscriptions • CRM integrations, including HubSpot, Salesforce and Zendesk • Ongoing development, debugging and maintenance of existing applications I work directly with product teams and agencies, either owning a defined project or joining their developers as a senior contractor. I clarify the scope and dependencies, explain technical tradeoffs, and stay involved through implementation and production support. Core stack: Umbraco, C#, ASP.NET Core, SQL Server, Entity Framework, REST/OpenAPI, Azure and Azure DevOps. I also work with React, Razor and JavaScript where the project needs them. Tell me which platform you use, what needs to change and which systems it connects to. I can help turn that into a practical scope and estimate. Hourly and fixed-price projects are welcome.