Middle C# Developer – MS365

Veeam Software

. Develop and support Veeam Backup for Office 365, one of Veeam's core products .

Posted 11/5/2026full-timeRemote • PolandMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in C# programming and a deep understanding of the Windows platform, including .NET and Win API. Proficient in developing solutions for Microsoft Azure and Office 365, with experience in key technologies such as Microsoft Exchange and SQL Server.

Highest-signal resume keywords

C# ProgrammingWindows Platform ExpertiseMicrosoft Azure DevelopmentOffice 365 DevelopmentSQL Server Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C# LanguageData StructuresAlgorithmsWindows Operating SystemLinux Operating SystemMicrosoft ExchangeSharePointActive DirectorySQL ServerPostgreSQL

Soft Skills

Analytical SkillsTeam CollaborationOpen MindClear LogicCommon Sense

Industry Keywords

Veeam BackupProduct DevelopmentCommercial DevelopmentMass Market ProductsPublic Clouds

Tech Stack

Tools & technologies

AzureLinuxOraclePostgresSQL.NET

About the role

Key responsibilities & impact

Develop and support Veeam Backup for Office 365, one of Veeam's core products
Communicate with other participants in the product development process
Participate in planning and creating product features

Requirements

What you’ll need

Good knowledge of C# language
Deep understanding of the Windows platform (.NET, Win API), data structures and algorithms
Advanced knowledge of Windows or Linux operating systems
Experience in development for public clouds Microsoft Azure and Office 365
Experience in development for Microsoft Exchange, SharePoint, Active Directory, SQL Server, Oracle, or PostgreSQL
Experience in commercial development of products for the mass market is an advantage
Open and flexible mind, common sense, clear logic, analytical skills, and ability to work in a team

Benefits

Comp & perks

26 paid days off annually
4 extra global VeeaMe Days for self-care
24 paid volunteer hours annually through Veeam Cares
Paid parental, maternity, and paternity leave
Fully covered family medical plan, dental, rehab, and vaccinations
Life, critical illness, and disability insurance
Employer pension contribution via PPK
Monthly Edenred allowance of 450 PLN for meals
MultiSport card fully covered by Veeam, giving access to sports facilities nationwide
Up to 12 free therapy sessions annually
Legal and financial advice
Opportunities to learn and grow through LinkedIn Learning, O’Reilly, mentoring, workshops and learning events like the annual Global Day of Learning