Microsoft Teams Custom Application Developer

Microsoft Teams Custom Application Developer Remote Contract-to-hire
We are seeking an experienced Microsoft Teams Custom Application Developer to join our team. In this role, you will design, develop, and deploy tailored solutions within the Microsoft Teams ecosystem. You will leverage your expertise in Azure, Power Platform, and Microsoft 365 to build secure, scalable, and high-performing collaborative applications.
Key Responsibilities Custom Teams Application Development Design and build custom Microsoft Teams applications, including tabs, bots, and messaging extensions, using Microsoft's SDKs and APIs. Create engaging, user-centric Teams Tab apps that leverage adaptive cards and modern UI frameworks, such as React. Integration with Microsoft 365 and Azure Services Integrate solutions with Microsoft Graph API, SharePoint, Azure Functions, Logic Apps, Azure Storage, Static Web Apps, and Power Platform (Power Automate, Dataverse). Application Deployment and Lifecycle Management Manage the full lifecycle of Teams app deployment in Microsoft 365 commercial environments, ensuring security, compliance, and optimal user experience. Package and configure applications with the Microsoft 365 App Manifest and Microsoft 365 Agents Toolkit. UI/UX Implementation Collaborate with the UI/UX design team to develop and implement intuitive, modern interfaces to support user productivity and enhance collaboration within Teams. Collaboration and Agile Delivery Partner with product owners, designers, and development teams to gather requirements and iteratively deliver high-quality solutions. Participate in Agile processes and contribute to sprint planning, reviews, and retrospectives. Documentation and Standards Compliance Produce comprehensive technical documentation. Adhere to secure development best practices and corporate IT governance, including compliance with internal and external policies.
Required Qualifications 3+ years developing applications for Microsoft Teams or the Microsoft 365 ecosystem. 2+ years working with Azure services, including Azure Functions, Logic Apps, Azure Storage, Static Web Apps, and Azure AD. Proven experience building custom Teams Tab Apps, with integration into M365 services and usage of adaptive cards. Experience deploying Teams apps into Microsoft 365 commercial tenants, with attention to access control, data security, and compliance. Proficiency in JavaScript/TypeScript, React, Node.js, and consuming REST APIs. Experience with Power Platform tools, particularly Power Automate and Dataverse. Familiarity with Microsoft Graph API, SharePoint Framework (SPFx), and Microsoft authentication mechanisms (OAuth 2.0, Azure AD). Strong troubleshooting skills with the ability to diagnose and resolve complex technical issues. Excellent verbal and written communication skills; demonstrated ability to collaborate in cross-functional teams. Preferred Qualifications Experience submitting or managing custom Teams apps through the Microsoft Teams App Marketplace. Experience deploying Teams apps in Microsoft GCC (Government Community Cloud) environments, including understanding of FedRAMP and CJIS compliance requirements. Familiarity with Azure DevOps, CI/CD pipelines, and automated deployment practices. Knowledge of conversational AI frameworks and bot development using Microsoft Bot Framework or similar platforms.