SII Canada

About the Company

SII Canada, your technological partner, support its clients on mechanical design, embedded systems, development and IT infrastructure with strong added value solutions. SII Canada is also a well-known expert on Microsoft solutions. Having its headquarters in one of the top Aerospace cities of the world, namely Montreal, SII Canada also expanded this year building a new entity in the Canadian Business capital city : Toronto.

Listed Jobs

Company Name

SII Canada

Job Title

Développeur C#.NET

Job Description

**Job title:** C#.NET Developer **Role Summary:** Build, extend, and maintain a large‑scale, AWS‑hosted SaaS solution composed of microservices. Design and deliver SOAP and REST APIs, apply unit and integration testing best practices, and improve code quality in an Agile Scrum environment. **Expectations:** - Deliver high‑quality software within 2‑week sprints. - Collaborate across distributed teams using Jira, GitLab, and Atlassian tools. - Explain technical concepts to non‑technical stakeholders and contribute to knowledge sharing. **Key Responsibilities:** - Design, code, test, and deploy C#/.NET features for a flight operations and air traffic management platform. - Maintain and refactor existing microservice codebases, ensuring clean architecture and proper dependency management. - Conduct code reviews, participate in daily stand‑ups, and contribute to sprint planning. - Create and maintain unit (NUnit) and integration tests; drive test automation and continuous integration pipelines (TeamCity, Octopus). - Collaborate with database teams to model data in MSSQL with Entity Framework. - Integrate with external SOAP/REST services and manage API versioning. - Work with AWS services (EC2, RDS, S3, etc.) to deploy and scale services. **Required Skills:** - Proficiency in C# and .NET Framework 4.8. - Experience building ASP.NET Web API services and consuming SOAP/REST APIs. - Strong understanding of MSSQL, Entity Framework, and relational data modeling. - Git/GitLab source‑control best practices. - Ability to write comprehensive unit tests (NUnit) and conduct integration testing. - Logical reasoning and problem‑solving skills. - Excellent written and verbal communication. - Interest in aviation regulations and laws (useful for domain understanding). **Optional / Preferred Skills:** - JavaScript/AngularJS experience. - Familiarity with Atlassian suite (Jira, Confluence), TeamCity, and other CI/CD tools. - AWS certification or hands‑on experience. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or related field. - Microsoft Certified: .NET Developer (preferred).

Montreal, Canada

Hybrid

22-01-2026