Senior .NET Engineer We re looking for a hands-on Senior .NET Engineer to help design, build, and deliver high-quality, scalable enterprise SaaS applications. This role is ideal for someone who enjoys solving complex problems, writing clean code, and taking full ownership of their work including testing and quality. What You ll Be Doing Break down large or complex problems into smaller parts, design clean solutions, and implement the core framework.

Build and maintain RESTful APIs and backend services using C#, .NET Core, Entity Framework, and Web API. Apply software architecture patterns like Domain-Driven Design (DDD) and CQRS to build modular and scalable systems. Work directly with SQL Server designing databases, writing stored procedures, optimizing queries, and tuning performance.

Use Entity

Framework (EF Core or EF6) for ORM and data access. Write clean, testable, and maintainable code with proper documentation. Take full ownership of testing your own code unit, integration, and performance testing as part of a Shift Left / No QA team setup.

Collaborate with product managers and other teams to understand requirements and deliver customer-focused features. Use AI development tools (required)



including GitHub Copilot, Claude, or similar to assist with code generation, refactoring, documentation, and development speed.

What You Should

Bring 5+ years of experience in enterprise or SaaS software development.

Strong

Hands-on Experience With C#, .NET Core, Web API Angular or other frontend frameworks.

Entity

Framework (EF Core or EF6) SQL Server writing queries, stored procedures, indexing, and performance tuning Solid understanding of object-oriented programming, design patterns, and enterprise architecture.

Experience with DDD, CQRS, and clean layering of business logic and data access. Familiarity with multi-threading, asynchronous programming, and system performance tuning. Comfortable with Git and working in a modern development environment (CI/CD, Agile). Solid debugging and troubleshooting skills. Excellent communication skills (written and verbal) in English.

Experience working across multiple teams or squads.

Required: Active daily use of AI development tools like GitHub Copilot, Claude, or similar in your workflow.

📌 Senior Dot Net Developer- Canada
🏢 RELQ TECHNOLOGIES
📍 Canada