Remote .NET Backend Engineer - Microservices & High-Scale API

Mission.dev; Quebec; Remote; CAD 90,000 - 130,000; Full time

Job summary

Mission.dev is seeking a Backend Software Engineer to own services powering a mission-critical field operations platform. You will contribute to a modern .NET microservices architecture while maintaining a high-traffic legacy system.

In a cross-functional squad, you’ll handle full backend features from refinement to maintenance. You’ll work with ASP.NET Core, SQL Server, and CQRS/Clean Architecture, ensuring security, performance, and reliability.

Qualifications

• 3+ years of backend development experience using C# and .NET.
• Experience building HTTP APIs with ASP.NET Core Web API and DI.
• Strong relational data modeling and T-SQL for SQL Server.

Responsibilities

• Deliver backend features end-to-end including implementation, tests, and migrations for high-availability services.
• Build and maintain HTTP APIs across microservices and legacy apps.
• Design components using Clean Architecture and CQRS patterns.
• Model relational data and optimize complex queries for SQL Server.
• Conduct code and schema reviews for security and maintainability.
• Manage full lifecycle of services including incident response and regression tests.
• Collaborate with cross-functional squads to ensure real-time field operations.
• Overlap at least 4 hours with CET and 4 hours with EST during working hours.

Skills

C# & .NET

ASP.NET Core Web API

SQL Server

Testing (unit & API)

Git & Agile

Job description

Mission.dev is seeking a Backend Software Engineer to own services powering a mission-critical field operations platform. You will contribute to a modern .NET microservices architecture while maintaining a high-traffic legacy system.

In a cross-functional squad, you’ll handle full backend features from refinement to maintenance. You’ll work with ASP.NET Core, SQL Server, and CQRS/Clean Architecture, ensuring security, performance, and reliability.