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Middle C# Developer for MS365

Veeam Software - Warsaw, Poland - In-office - posted 2026-08-05

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Veeam Software is seeking a Middle C# Developer to join the team developing Veeam Backup for Office 365, a core product protecting over 550,000 customers worldwide. You will develop and maintain this enterprise backup solution, communicate with cross-functional product development teams, and participate in planning and feature creation. Key responsibilities include: - Developing and supporting Veeam Backup for Office 365 - Collaborating with other product development team members - Participating in product planning and feature development Technologies you'll work with: - C# (latest versions), with some C++ and C++/CLI - .NET 8, REST APIs, PowerShell - Visual Studio 2022, Rider - Azure DevOps, Git, Jenkins, TeamCity - Cloud platforms: Azure, Office 365, Amazon, Google - Enterprise systems: Exchange, SharePoint, Active Directory, SQL, Oracle, PostgreSQL Required qualifications: - Strong C# language knowledge - Deep understanding of Windows platform (.NET, Win API), data structures, and algorithms - Advanced knowledge of Windows or Linux operating systems - Ability to work collaboratively in a team environment with analytical and problem-solving skills Advantages: - Experience developing for Microsoft Azure, Office 365, Exchange, SharePoint, or Active Directory - Background in commercial product development for mass-market applications - Experience with SQL Server, Oracle, or PostgreSQL Veeam is headquartered in Seattle with offices in 30+ countries and is a market leader in data resilience and security posture management.

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