Backend .NET Developer

madiffpl
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📍 Warsaw, PolandFull time

About this role

We are looking for a Senior Backend .NET Developer to join a product team responsible for developing and maintaining a large-scale digital platform. The role focuses on building and enhancing backend services using .NET Core and microservices, optimising databases, integrating with external partners, and delivering scalable, high-quality solutions in a modern Agile environment.

Responsibilities

• Design and implement new backend functionalities in .NET Core
• Develop and maintain microservices
• Integrate backend services with external partners
• Implement and develop content search capabilities
• Create and optimise database queries in SQL Server and Cosmos DB
• Participate in requirement analysis, backlog refinements and sprint planning
• Maintain code quality through unit testing and code reviews
• Follow backend engineering best practices
• Support API documentation and technical documentation where needed



Requirements

• Minimum 5 years of commercial backend development experience
• Strong .NET Core and C# experience
• Experience creating and optimising queries in SQL Server
• Experience with microservices architecture
• Experience with messaging systems such as Azure Service Bus, Event Hub, Kafka or MQ
• Experience working in Agile delivery teams
• Ability to analyse requirements and work with Product Owners
• English at a level enabling business communication

Nice to have

• Experience with search engines, preferably Azure AI Search, or alternatives such as ElasticSearch
• Experience with Azure Cosmos DB or other NoSQL databases such as MongoDB
• Experience building cloud applications in Azure
• Experience with App Services, Azure Functions, Storage, Application Insights or Log Analytics
• Experience creating API documentation using Swagger or OpenAPI
• Experience building backend services for mobile applications
• Degree in Computer Science, Engineering, Mathematics, Physics or similar



Benefits

• Solid, competitive salary
• Work in a multinational environment on international projects
• Comprehensive healthcare
• Long-term B2B contract with a stable project pipeline

Frequently Asked Questions

Is the salary disclosed for the Backend .NET Developer position at madiffpl?
The salary for this Backend .NET Developer role at madiffpl is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Backend .NET Developer position at madiffpl located?
This Backend .NET Developer role at madiffpl is based in Warsaw, Poland. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Backend .NET Developer role at madiffpl full-time or part-time?
This is listed as a Full time position. It is posted as a Backend .NET Developer role at madiffpl.
How do I apply for the Backend .NET Developer position at madiffpl?
Click the "Apply Now" button on this page. You will be redirected to madiffpl's official application portal hosted on zohorecruit where you can submit your application directly.
When was the Backend .NET Developer job at madiffpl posted?
This Backend .NET Developer position at madiffpl was posted on Jul 13, 2026. Apply as soon as possible — early applications are often reviewed first.
Backend .NET Developer
madiffpl
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