Senior Software Engineer - .NET / Azure / IoT

Grote•Madison, IN

About The Position

We are looking for a Senior Software Engineer to help build and maintain a cloud-based telematics platform supporting connected commercial vehicle products. This is a hands-on engineering role with significant ownership across backend services, APIs, cloud infrastructure, data processing, partner integrations, and internal applications. You will work across an established .NET and Azure environment while helping design and deliver the next generation of platform capabilities. The ideal candidate is comfortable working independently, making technical decisions, collaborating directly with stakeholders, and owning solutions from initial requirements through deployment and production support.

Requirements

7+ years of professional software development experience
Strong expertise in C#, modern .NET and ASP.NET Core
Backend API design and development
SQL Server/T-SQL, including experience optimizing queries and working with large datasets
Hands-on experience with Entity Framework Core or similar data access technologies
Deploying and supporting production applications in Microsoft Azure
Experience building distributed systems using messaging, queues, background processing, or event-driven architectures
Designing and consuming REST APIs
Solid understanding of authentication and authorization technologies, including JWT, OAuth, API keys, and role- or policy-based access control
Experience with Git-based development workflows and CI/CD pipelines
Comfortable independently designing solutions
Comfortable working through ambiguous technical challenges
Effective communication with both technical and non-technical stakeholders

Nice To Haves

Experience with IoT
Experience with telematics
Experience with connected vehicles
Experience with high-volume telemetry
Experience with Azure cloud services
Experience with gRPC
Experience with GraphQL
Experience with SignalR
Experience with Blazor
Experience with Azure DevOps
Experience with Microsoft Entra ID
Experience with CAN bus
Experience with firmware or over-the-air deployment
Experience with diagnostics
Experience with reporting systems
Experience with other hardware-connected software technologies

Responsibilities

Design, develop, and maintain backend services and APIs using C# and modern .NET.
Build and support high-volume telemetry and IoT data processing systems.
Develop REST, gRPC, GraphQL, and real-time service integrations.
Design and optimize SQL Server databases, queries, and data access patterns.
Build and maintain integrations with external customers, technology partners, and third-party platforms.
Develop and maintain client SDKs and shared libraries used across internal and external applications.
Support cloud infrastructure and application services hosted in Microsoft Azure.
Build and maintain asynchronous processing workflows using messaging, events, queues, and background services.
Develop internal web applications and operational tools using Blazor and ASP.NET Core.
Implement secure authentication, authorization, and service-to-service communication.
Maintain CI/CD pipelines and support deployments across development, testing, and production environments.
Monitor production systems, troubleshoot complex issues, and improve platform reliability and performance.
Work directly with product, support, operations, customers, and integration partners to gather requirements and design solutions.
Help improve technical documentation and engineering practices across the platform.