Office Add-ins Developer – Roles and Responsibilities

Location: Bangalore

Employment Type: Full Time / Contractual

Experience: 3-6 Years

Primary Skill: C#, .NET, Office Add-ins Development

Secondary Skill: Node.js, JavaScript / TypeScript, Office.js

Work Type: Hybrid / Office as per project requirement

Job Summary

We are looking for an experienced Office Add-ins Developer with strong hands-on expertise in C#, .NET, VSTO / COM Add-ins, and Microsoft Office application integration.

The candidate should be able to design and develop stable, secure, and high-performance add-ins for Microsoft Office applications such as Word, Excel, PowerPoint, and Outlook. Knowledge of Node.js, JavaScript / TypeScript, and Office.js will be an added advantage for up-to-date Office Web Add-ins development.

Key Responsibilities

Office Add-ins Development
- Design and develop Microsoft Office add-ins using C#, .NET, VSTO, COM Add-ins, and Office Interop APIs.
- Build add-in features for Microsoft Word, Excel, PowerPoint, and Outlook.
- Work with Office object models, Ribbon customization,



task panes, event handlers, and document-level operations.
- Develop reusable components and libraries for Office add-in functionality.
- Ensure add-ins are stable, responsive, and compatible with supported Office versions.

C# / .NET Development
- Develop application logic using C#, .NET Framework / .NET, and Visual Studio.
- Work with Office events such as open, save, close, send, attachment handling, and user actions.
- Implement document, email, attachment, and metadata-related workflows.
- Write clean, maintainable, secure, and testable code.
- Participate in technical design discussions and code reviews.

Office Application Integration
- Develop features for Outlook email compose, read, send, and attachment workflows.
- Develop features for Word, Excel, and PowerPoint document processing.
- Handle document properties, metadata, headers, footers, watermarks, labels, and user prompts where requ

📌 Office Add-ins Developer (Bengaluru)
🏢 SISA
📍 Bengaluru