πŸ‡ΊπŸ‡Έ USAJobs.work

America's Job Portal

← Back to USA Jobs

Senior Backend Engineer – .NET, Cloud, APIs

Company

Jobtailor

Location

sintra, lisboa

Posted

July 21, 2026

Position Overview

  • Design, develop, and maintain backend services using C# and .NET Core.
  • Build secure, scalable, and high-performance REST APIs.
  • Implement backend solutions aligned with approved architectural patterns and technical guidelines.
  • Develop services capable of handling high concurrency and production-scale workloads.
  • Write optimized and maintainable database queries while ensuring data integrity and performance.
  • Troubleshoot and resolve backend and production issues efficiently.
  • Write clean, maintainable, testable, and production-ready code.
  • Apply SOLID principles and safeguard architectural practices such as Clean Architecture, Onion Architecture, Hexagonal Architecture, and Domain-Driven Design (DDD).
  • Implement and maintain unit tests, integration tests, end-to-end tests, and performance/load tests.
  • Participate actively in code reviews and engineering quality initiatives.
  • Work clo...

Ready to Apply?

Join thousands of Americans building their careers

Apply Now