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CBTS · 4 weeks ago

NET Sr Backend Developer

Cincinnati, OH

Full-time

Hybrid

Mid, Senior Level

$70/hr - $80/hr

3+ years exp

CBTS is building a Large SaaS application for sporting events and is seeking a Backend Developer with strong C#, API, and Azure experience. The role involves developing backend services, maintaining APIs, and deploying solutions in Azure to support a modern sports platform.

Cloud ComputingCloud InfrastructureConsultingInformation TechnologyService Industry

Comp. & Benefits

No H1B

U.S. Citizen Only

Hiring Manager

Jason P.

Responsibilities

Develop backend services using C#, .NET 8, and Clean Architecture principles

Build and maintain modular APIs used by:

Admin (Blazor)

Crew and Fan mobile apps (MAUI)

Timing systems

Ticketing, Merch, Finance, Security, and Logistics portals

Implement business logic for racing workflows:

Events, entries, race classes, schedules, results

Driver/team data

Track configuration and timing integration

Build CQRS-based handlers using MediatR

Design and manage SQL Server schemas and EF Core models

Create migrations, seeds, and maintain data integrity

Build high-performance queries and stored procedures when needed

Work with relational models across multiple bounded contexts

Deploy and maintain API services in Azure using:

Azure App Service

Azure SQL

Azure Storage (Blobs/Tables/Queues)

Azure Functions (where appropriate)

Azure DevOps Pipelines or GitHub Actions

Monitor and tune API performance, scaling, and reliability

Build integrations with hardware and timing protocols

Implement SignalR hubs for real-time updates

Develop secure authentication/authorization layers:

Azure AD / Identity

JWT / Role-based access (Admin, Crew, Fan)

Integrate with third-party services (payments, email, SMS, analytics)

Write clean, maintainable, testable code

Participate in architectural planning, code reviews, and sprint cycles

Troubleshoot complex issues across distributed systems

Document API endpoints and workflows clearly

Qualification

C#.NET 8AzureSQL ServerEntity Framework CoreWeb APIsDependency injectionRESTful API designMediatRSignalRDomain-driven designCommunicationProblem-solving

Required

3–7+ years of backend development experience with C#/.NET

Deep experience with .NET 6/7/8

C#, LINQ, async/await

Web APIs (minimal APIs or Controllers)

Entity Framework Core

SQL Server

Dependency injection & middleware pipelines

RESTful API design

Azure experience (at least 2–3 of the following): App Service, Azure SQL, Azure Functions, Storage Accounts, Managed Identity, Key Vault, API Management

Understanding of Clean Architecture and modular domain design

Strong communication and problem-solving abilities

Can break down complex requirements into clean, maintainable code

Works well with designers and front-end developers

Comfortable in a fast-moving, iterative startup-like environment