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AM53 Smart Solutions logo
AM53 Smart Solutions

A tecnologia certa. O talento ideal. No momento exato.

C# Developer – .NET

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50Since 2010H1B No SponsorCompany SiteLinkedIn

Location

Brazil

Posted

77 days ago

Salary

0

Seniority

Senior

Bachelor DegreePortugueseASP.NETC#PostgreSQLSQL.NET

Job Description

C# Developer – .NET

AM53 Smart Solutions

• Evolve and maintain APIs in ASP.NET Core (controllers, middleware, dependency injection, configuration, request pipeline). • Develop HTTP integrations with partners/external services (JSON contracts, error handling, resilience). • Maintain and enhance WinForms modules (UI/screens, event handling, performance, and stability). • Implement data access using Dapper / Dapper.Contrib with SQL Server and PostgreSQL. • Ensure observability and diagnostics (logging with Serilog, NLog; troubleshooting and fixes). • Write and maintain automated tests and support test quality/coverage. • Participate in code reviews, refactorings, and technical decisions (continuous improvement).

Job Requirements

  • Strong knowledge and practical application of design patterns and coding best practices: DRY, SOLID, GRASP.
  • Experience with agile frameworks (Scrum: story points, planning, retrospectives).
  • Solid experience with modern C# and .NET.
  • Experience with ASP.NET Core Web API (Swagger/OpenAPI, health checks, authentication/authorization).
  • Experience with Dapper and SQL databases (SQL Server and/or PostgreSQL).
  • Experience with HTTP integrations and JSON serialization (Newtonsoft.Json).
  • Experience with logging and troubleshooting (Serilog, NLog).
  • Experience with automated testing: xUnit and mocks using NSubstitute.
  • Strong knowledge of Git and branching strategies.
  • Broad experience with collaborative development best practices (pull requests, code review, merging).
  • Experience with CI/CD pipelines using GitHub Actions.

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