Senior Back End Developer, .Net

This is a fully remote position, open to applicants in Brazil.

📋 Description

• Development of robust APIs and backend services using .NET 10.

• Work independently while maintaining high technical quality.

• Collaborate directly with the Tech Lead on solution implementation.

⛳️ Requirements

• Experience in backend development with .NET.

• Proficiency in C# — including modern language features (records, pattern matching, nullable reference types, primary constructors).

• Solid experience in building RESTful APIs with ASP.NET Core: controllers, minimal APIs, middleware, filters, dependency injection.

• In-depth knowledge of Entity Framework Core: migrations, complex relationships, performance tuning, and raw SQL when needed.

• Intermediate/advanced SQL Server skills: writing efficient queries, complex joins, transactions, and indexing.

• Expertise in dependency injection, repository patterns, and service layers.

• Experience in error handling, structured logging, and data validation (FluentValidation, Data Annotations).

• Proficiency in Git: versioning, branches, pull requests, and conflict resolution.

• Ability to read and write technical documentation in English.

🏝️ Benefits

• 100% remote.