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.NET Umbraco Developer at Devsu. We are looking for a . Senior Umbraco Developer. to lead the upgrade and optimization of an enterprise-level CMS built with Umbraco. The ideal candidate will have strong experience with . Umbraco v8+. , . .NET/C#. , and CMS version migrations. This role will take ownership of assessing the current setup, planning and executing the upgrade, ensuring full compatibility, and delivering a secure, high-performance system post-migration. . This is a 100% Remote position in LATAM for one of our most important clients in the USA. . . 3+ years of experience working with . Umbraco CMS (v8 or higher). . . . Proficiency in . .NET/C#. , . Razor views. , . HTML. , . CSS. , and . JavaScript. . . . Strong knowledge of . MVC architecture. and component-based development. . . Experience with . SQL Server. and relational database modeling. . . Familiarity with . Git. and version control workflows. . . Ability to independently plan and execute technical projects. . . Key Responsibilities. . Assess the current Umbraco environment and define a detailed migration strategy. . . Lead the upgrade from Umbraco v8+ to the latest stable version. . . Refactor or rebuild templates, views, and custom components in Razor and C#. . . Ensure integration points (APIs, services, databases) remain fully functional post-upgrade. . . Perform thorough testing to validate functionality, performance, and stability. . . Implement CMS performance optimization and security best practices. . . Collaborate with product, design, and QA teams to align with project goals. . . Nice to Have. . Experience with . Azure DevOps. , CI/CD pipelines, or automated deployments. . . Exposure to . headless CMS setups. or hybrid content architectures. . . Understanding of SEO and web performance best practices in CMS environments. . . Familiarity with monitoring and debugging tools for CMS performance. . . Company Location: Colombia.