.NET Fullstack Software Engineer at RebelDot – Cluj-Napoca | Jobyssey

3-6 years of hands-on experience building and maintaining web applications and APIs with C# and .NET
Experience with — MVC, Web Forms and/or Web API and openness in working in a mature codebase
Experience with Microsoft Azure in a production context — Virtual Machines / IIS hosting, App Services, Azure Functions and Service Bus
Ability to contribute across the stack, including the existing web frontend (JavaScript, HTML, CSS), and to follow the patterns already established in the codebase
Confidence debugging and fixing issues in code, inside a live production system used by customers on active construction sites
A methodical approach to defining and resolving routine and moderately complex issues, and the judgement to know when something should be escalated
Experience planning and monitoring your own work within agreed deadlines and milestones, in an Agile / Scrum setup
You are based in Cluj-Napoca and open to office days
You have a sense of belonging when reading about our culture

IoT experience: exposure to device-to-cloud data flows, telemetry ingestion and device messaging, for example with Azure IoT Hub, Service Bus or an equivalent platform. This is an IoT product, so previous experience helps but we are commited to evolve together
Experience in working with frontend technologies (Angular, React or similar)
Experience with CI/CD pipelines in Azure DevOps / Azure Pipelines, and an interest in reducing the manual steps that still exist in our cloud deployments
Familiarity with monitoring, alerting and incident handling for a production service
Curiosity about AI-assisted development tooling and how it can speed up maintenance work

Keeping the platform stable and running reliably across sensors, backend, web frontend and mobile apps — this is the squad’s primary goal
Implementing smaller technical improvements and change requests on the C#/.NET backend and API
Investigating and resolving production incidents along the full device → cloud → web chain, and documenting what caused them so they do not come back
Maintaining and improving the web frontend, and supporting the React Native mobile applications
Gradually modernize legacy .NET applications towards .NET Core or newer versions
Working with the Azure IoT Hub and Service Bus message flows that carry sensor readings into the platform
Sharing what you learn with the team, and taking the initiative on your own development — we will help you find the right opportunities

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