Backend .NET Developer
MADIFF Polska · Warsaw, Masovian Voivodeship, Poland
All reasons
- Open 112 days
In its favour
- Still listed on the employer's own board
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
Skills
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