Senior Software Engineer

Senior Software Engineer (Full-Stack)

Toronto, Canada | Hybrid – 3 days onsite / 2 remote | CAD $120,000–$160,000

Our client is an established technology company specialising in Industrial IoT, connected devices and cloud technology, developing solutions that connect physical assets with enterprise systems. As a Senior Software Engineer (Full-Stack), you will join a small, highly collaborative engineering team building a next-generation cloud platform used to manage connected device fleets. The Senior Software Engineer (Full-Stack) will have significant ownership across development and architecture, working primarily with C#, .NET, React and Azure. This is a hands-on opportunity for a senior engineer who enjoys autonomy, complex technical challenges and seeing their work have a direct impact.

Key Responsibilities

• Build and enhance scalable customer-facing web applications and dashboards.
• Develop interfaces for device fleets, telemetry, alerts and monitoring.
• Integrate React applications with .NET, GraphQL and REST APIs.
• Work closely with Product, Design and Engineering teams.
• Improve application performance, reliability, testing and observability.

Required Experience & Skills

• 6+ years commercial software engineering experience; 8+ preferred.
• Strong hands-on C# / .NET / ASP.NET Core experience.
• Strong React and TypeScript experience.
• Experience with Azure and scalable cloud applications.
• Experience with REST APIs and/or GraphQL, SQL and Entity Framework Core.
• Docker, CI/CD and automated testing experience.
• Strong architectural thinking and ability to work autonomously.

Desirable

• IoT/Industrial IoT, device management, telecommunications or LoRaWAN experience
• Experience with AI-assisted development tools such as Claude

Why Apply?

• Hands-on role within a small senior engineering team with high ownership.
• Modern C#/.NET, React, TypeScript and Azure technology stack.
• Work on real-world Industrial IoT and connected-device technology.
• Opportunity to influence architecture and a next-generation cloud platform.

Recruiter's Note

Ideal candidates are likely to be Senior Software Engineers, Senior .NET Developers or Senior Full-Stack Engineers with strong C#/.NET and Azure backgrounds. Experience in IoT, connected devices or LoRaWAN would be a major advantage, but strong scalable software engineering experience is the priority.

Apply now or send a copy of your CV, referencing the title and location, and with a short introduction to [email protected].

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