Senior Software Engineer

Job summary

Build and enhance scalable customer-facing web applications and dashboards for managing connected device fleets. Integrate React front-ends with .NET APIs while improving application performance, reliability, and observability.

Job details

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 cw@eu-recruit.com. By applying to this role you understand that we may collect your personal data and store and process it on our systems. For more information please see our Privacy Notice.

What you’ll do

Build and enhance scalable customer-facing web applications and dashboards for managing connected device fleets. Integrate React front-ends with .NET APIs while improving application performance, reliability, and observability.

Requirements

Requires 6+ years of commercial software engineering experience with strong proficiency in C#/.NET, React, and Azure. Experience with REST/GraphQL, SQL, and CI/CD pipelines is essential, with IoT experience being a plus.

Listed skills

• Microsoft Azure · Preferred
• SQL · Preferred
• REST APIs · Preferred
• CI/CD · Preferred
• Automated testing · Preferred
• Docker · Preferred
• React · Preferred
• TypeScript · Preferred
• .NET · Preferred
• C++ · Preferred
• GraphQL · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• C#
• .NET
• React
• TypeScript
• Azure
• GraphQL
• REST APIs
• SQL
• Entity Framework Core
• Docker
• CI/CD
• Automated Testing
• Software Architecture
• Industrial IoT
• LoRaWAN
• Claude AI

Job areas

• Software
• Technology
• Engineering