We are looking for a talented and motivated C Developer with solid experience in VSTO or Office JavaScript Add-ins and hands-on expertise in NET Core The ideal candidate will work on building maintaining and enhancing Microsoft Office Add-ins PowerPoint Excel Word integrating external data sources and developing backend services to support these tools This role is perfect for someone who loves solving technical challenges writing clean code and working on modern cloud-integrated Office automation products Key Responsibilities Microsoft Add-In Development Develop custom VSTO Add-ins or Office js Web Add-ins for PowerPoint Excel Word Outlook Build interactive task panes ribbon extensions and UI components Implement features such as data fetching content insertion and dynamic shape chart manipulation Ensure add-ins are optimized lightweight and follow Microsoft Office extensibility guidelines Backend API Development Using NET Core Build RESTful APIs and microservices using ASP NET Core Integrate add-ins with backend systems SQL Server cloud storage third-party APIs Write reusable scalable and high-performance server-side code Integration Automation Interact with external APIs and databases to fetch store data Implement authentication flows OAuth Azure AD preferred Work on file-handling metadata extraction JSON XML parsing and automation workflows Testing Debugging Troubleshoot Office Add-in issues task panes COM components script runtime Perform unit and integration testing using tools like xUnit NUnit Optimize performance and ensure cross-version compatibility across Office desktop web Collaboration Work closely with UI UX backend and QA teams Participate in code reviews sprints and daily standups Contribute to documentation architecture discussions and technical improvements Required Skills Qualifications 2-3 years of hands-on experience in C and NET development Strong knowledge of VSTO Add-ins or Office js Add-in development any Office app is acceptable Solid experience with NET Core NET 6 Experience working with Visual Studio IDE NuGet packages and debugging tools Knowledge of REST APIs JSON dependency injection and asynchronous programming Familiarity with SQL Server or similar relational databases Understanding of Office object models task pane development and ribbon customization Strong OOP concepts and clean coding practices Preferred Good-to-Have Skills Experience with PowerPoint automation shape manipulation and slide generation Knowledge of Azure services Functions App Service Key Vault Experience with file processing cloud storage Azure Blob AWS S3 Basic understanding of JavaScript TypeScript for Office js Add-ins Exposure to DevOps Git CI CD or build pipelines Soft Skills Strong problem-solving and analytical skills Good communication and teamwork abilities Ability to write clean well-structured code and documentation Ability to learn new tools and frameworks quickly Why Join Us Work on high-impact Microsoft Office automation products Opportunity to grow into a Lead Add-in Engineer role Exposure to modern NET technologies and cloud platforms Collaborative team environment with continuous learning Job Type Full-time Pay 30 000 00 - 45 000 00 per month Work Location In person

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