.Net Developer

Role: .Net Developer

Term: 6+ months, possibly extension

Location: Toronto, ON, Canada (Onsite)

Must have skills: .NET 8/9, Hands-on experience containerizing .NET applications with Docker, Azure Kubernetes Service (AKS), Azure Container Apps (ACA)

Description

.NET 8/9 Development Skills:

• Proven expertise building production-grade back-end services using .NET 8/9, with focus on scalability and performance optimization
• Advanced C# proficiency, including modern language features and deep understanding of asynchronous programming patterns (async/await)
• Expertise in C# memory management, including Span, Memory, ref structs
• Expertise in C# records, pattern matching, and immutable data structures to implement clean and expressive code
• Expertise in C# dependency injection patterns
• Expertise in building reusable C# libraries, NuGet package development, and managing semantic versioning
• Comprehensive knowledge of .NET application lifecycle, including middleware pipelines, hosting models, and environment-specific configuration strategies
• Strong testing discipline using xUnit, mocking frameworks (e.g., Moq), and testable architecture principles
• Expertise in error handling strategies, resiliency patterns, and performance tuning
• Expertise in secure C# coding practices, including input validation, encryption, hashing, and secrets management
• Expertise in modern C# coding styles, including file-scoped namespaces, global using directives, and top-level programs
• Expertise in implementing secure REST APIs, including OAuth 2.0, JWT, and token lifecycle management
• Expertise in API versioning strategies, such as URL versioning, header-based versioning, and backward-compatible design
• Expertise in applying API observability, including structured logging, distributed tracing, and metrics instrumentation
• Experience integrating Minimal APIs with OpenAPI/Swagger, including endpoint metadata, tags, grouping, and custom schema generation

Containerization & Developer Tooling

• Hands-on experience containerizing .NET applications with Docker for development, testing, and deployment scenarios
• Hands-on expertise with Dev Containers (VS Code Development Containers), including custom .devcontainer.json configurations and integrated debugging workflows
• Skilled in authoring and optimizing Dockerfiles, including multi-stage builds and layer caching strategies
• Proficient with Visual Studio Code as primary IDE, including debugging containerized .NET applications using extensions and tooling

Azure PaaS Development Expertise

• Experience developing and deploying microservices using Azure containerization / serverless platforms, including one or more of: Azure Kubernetes Service (AKS), Azure Container Apps (ACA), or Azure - - - Functions running in containerized environments
• Experience applying observability and diagnostics leveraging Azure Monitor, Application Insights, and Log Analytics