Backend API Engineer - .NET​/SQL Server​/Web API​/Azure

We are seeking a strong Backend Engineer to design, build, and maintain enterprise-grade APIs, middleware services, and data-driven backend systems. This role will focus on developing scalable API products, enabling API consumers, enforcing API governance standards, and supporting secure API onboarding and consumption patterns.

The ideal candidate has strong hands-on experience with REST APIs, API management, API product design, Swagger/OpenAPI documentation, security controls, and modern integration patterns, including hands-on experience building and maintaining MCP servers. Strong experience with SQL Server, .NET, ASP.NET Web API, and Microsoft Azure is required.

• Design, develop, and maintain RESTful and event-driven APIs that meet enterprise standards for scalability, reliability, security, and maintainability.
• Create and manage API products and API gateways, including:
• Defining API product structure and access models.
• Setting rate limits, quotas, and volume plans.
• Configuring API security policies.
• Publishing REST methods through Swagger/OpenAPI documentation.
• Develop and maintain RESTful APIs that meet enterprise standards for scalability, reliability, security, and maintainability.
• Configure API proxies, policies, routing, authentication, authorization, and traffic management controls.
• Partner with application teams, provider teams, and consumer teams to support API onboarding and API consumption.
• Support API lifecycle activities, including design, development, testing, publishing, versioning, promotion, and retirement.
• Create, review, and maintain Swagger/OpenAPI specifications for APIs.
• Ensure APIs are properly secured using modern authentication and authorization patterns such as OAuth 2.0, JWT, API keys, scopes, or similar mechanisms.
• Assist API consumers with onboarding, app registration, credentials, subscription requests, and troubleshooting API access issues.
• Collaborate with cross-functional teams to define API standards, governance practices, and reusable API patterns.
• Monitor API performance, traffic, errors, and consumption trends.
• Troubleshoot API integration issues across lower and production environments.
• Support documentation and knowledge sharing related to API products, onboarding processes, and consumption best practices.

We strive to provide flexibility wherever possible.
Based on this role’s business requirements, this is a remote position open to qualified applicants in Canada. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

SQL Server, .NET, ASP.NET Web API, Microsoft Azure, REST APIs, API Management, Swagger/OpenAPI, and API Security

• Extensive hands-on experience building and deploying production-grade RESTful APIs.
• Strong hands-on experience with C#, .NET Framework, .NET Core, ASP.NET MVC, and ASP.NET Web API.
• Strong SQL Server experience, including relational data modeling, complex queries, stored procedures, performance tuning, and troubleshooting.
• Hands-on experience with Microsoft Azure, including cloud-hosted APIs, Azure App Services, Azure Functions, Azure SQL, Azure Key Vault, and monitoring capabilities.
• Proficiency in Golang or Python.
• Experience designing and creating API products within an API management platform.
• Experience configuring rate limits, quotas, security policies, API products, developer or consumer applications, and API credentials.
• Expe…