.NET Backend Developer

Quick Facts

.NET backend development role focused on REST APIs, Clean Architecture/DDD, database performance, security, testing, and Agile delivery.

Description

You will design and develop back-end layers in .NET Core / C#, for both web and desktop applications. The role includes building and documenting efficient REST API interfaces, implementing business logic using Clean Architecture and Domain-Driven Design (DDD), and optimizing relational databases. You will also implement security (JWT/OAuth2/FIDO2, encryption), write unit/integration tests, and collaborate with the team using Agile/Scrum with Azure DevOps and Git.

Responsibilities

• Design and develop the back-end layer using .NET Core / C# (web and desktop applications).
• Design, implement, and document high-performance REST API interfaces.
• Implement business logic following Clean Architecture and DDD, using good practices and design patterns.
• Design and optimize relational databases (MS SQL, PostgreSQL), including SQL query optimization, index management, and stored procedures.
• Integrate and manage data access with ORM (Entity Framework Core, Dapper).
• Apply security standards for authorization and authentication (JWT, OAuth2, FIDO2) and implement data encryption mechanisms.
• Create unit and integration tests to ensure code quality and stability.
• Work in Agile/Scrum methodologies using Azure DevOps and Git version control.

Requirements

• Higher education (preferred: Computer Science, Telecommunications, Mathematics or related fields).
• Minimum 5 years of professional experience in software project implementation.
• Strong C# and .NET Core skills for web and desktop applications.
• Practical experience designing and building REST APIs.
• Experience with Clean Architecture, DDD principles, and key design patterns.
• Very good knowledge of relational databases: MS SQL and PostgreSQL, including schema/index/stored procedure design and query optimization.
• Practical ORM experience with Entity Framework Core and Dapper.
• Practical knowledge of security mechanisms: JWT, OAuth2, FIDO2 and data encryption.
• Ability to write unit and integration tests (e.g., xUnit, NUnit, Moq).
• Experience using Azure DevOps and Git for version control.
• Practical knowledge of Agile/Scrum methodologies.
• English proficiency for comfortable reading and writing of technical documentation (minimum B2).

Benefits

Not specified in the posting.