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ASP.NET Core API Service Build

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placeEG home_workRemote assignmentContract publicAggregated job · EG

eventPublished on Sep 24, 2026 · verifiedWe confirmed on Sep 26, 2026 that it's still live

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US$ 30 – US$ 250 per project

About the job

I need a brand-new API service written in ASP.NET Core that runs against SQL Server. From the ground up it must cover three core areas: secure user authentication (preferably JWT-based), efficient data-processing endpoints, and a small reporting layer that returns aggregated results in JSON. I will provide the high-level data model and sample data; you’ll design the database schema, create the Entity Framework Core mappings, and expose well-documented REST endpoints. Clean architecture, async/await throughout, and Swagger/OpenAPI documentation are expected so I can hand the service straight to the front-end team. Deployment will be to an existing Windows Server instance, so connection strings and appsettings should be easy to switch between local, staging, and production. A Dockerfile is welcome but optional. Deliverables • Git repository with readable commits • SQL scripts or migrations for the schema • Fully working ASP.NET Core solution with JWT login, CRUD/data-processing endpoints, and reporting routes • Basic README covering build, run, and deployment steps I’ll review with Postman; if all endpoints authenticate correctly, process data as specified, and return the required reports, the job is done.

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