.Net Developer - Mississauga, ON Canada - Hybrid role 3 days onsite a week

Role: .Net Developer

Location: Mississauga, ON L4W 5K9, Canada - Hybrid role 3 days onsite a week

Duration: 12 Months

Contract role

Job description:

Responsibilities

1. Design, and deliver highly scalable, fault-tolerant services and features across our microservices platform.
2. Take end-to-end technical ownership — from requirements through deployment, monitoring, and production support.
3. Lead technical design discussions and contribute meaningfully to architecture decisions, technology choices, and engineering standards.
4. Proactively identify and address technical debt — refactor and improve maintainability, performance, and reliability of the codebase.
5. Troubleshoot and resolve complex production issues with urgency and structured problem-solving.
6. Collaborate with Product, QA, and stakeholders to clarify requirements, surface risks early, and drive solutions to completion with minimal supervision.
7. Champion engineering best practices — testing, CI/CD, security, observability, and documentation.
8. Leverage AI developer tools (e.g., GitHub Copilot, Claude, Cursor) effectively to accelerate development and improve engineering output.
9. Perform other duties as assigned.

Required Qualifications

1. 7+ years of professional software engineering experience in a multi-team, production environment.
2. .NET Framework / .NET Core / C# – expert-level experience designing and building APIs, microservices, and back-end systems; strong grasp of design patterns and SOLID principles.
3. React – Experience building scalable, maintainable front-end applications; strong understanding of state management, performance optimization, and component architecture.
4. Good grasp of JVM-based language fundamentals (Java or Kotlin); able to read, reason about, and contribute to codebases beyond the primary stack when the need arises.
5. Microsoft Azure – solid working knowledge of Azure services with hands-on experience across one or more of the following: Azure Container Apps (ACA), App Services (Web Apps), Azure Service Bus, Managed PostgreSQL, Key Vault, Application Gateway, Virtual Networks (VNet) & Subnets, Private Endpoints, and Private DNS Zones; experience deploying and operating production workloads in Azure.
6. Databases (SQL Server & PostgreSQL) – expert-level experience with relational database design, complex query optimization, indexing strategies, and performance tuning.
7. RESTful API design – proven ability to design, build, version, and secure APIs at scale.
8. Strong understanding of microservices architecture, distributed systems, and integration patterns.
9. Containers (Docker) – strong hands-on experience; comfortable with containerized application design, networking, and deployment.
10. Experience with CI/CD pipelines (Azure DevOps, GitHub Actions, or equivalent).
11. Solid understanding of Agile / Scrum practices and the full software development lifecycle.
12. Demonstrated and effective use of AI-assisted development tools as part of everyday engineering workflow.

Nice-to-Have Skills

1. Experience with Kubernetes or Azure Container Apps for container orchestration.
2. Familiarity with event-driven architecture and message brokers (e.g., Azure Service Bus, RabbitMQ, Kafka).
3. Experience with observability tooling — logging, metrics, and distributed tracing (e.g., Application Insights, OpenTelemetry).
4. Background in e-commerce, marketplace, or transaction-heavy platform environments.
5. Experience with Test-Driven Development (TDD) and pair programming practices.
6. Ability to learn and adapt to newer patterns and technologies as the landscape evolves.