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$
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I will build a custom aspnet core web API for your application
Cherno Cham
About this gig
Need a clean, well-architected ASP.NET Core web API? Whether you're building a SaaS backend, mobile app server, or replacing a legacy system, I'll deliver a production-ready API that's secure, documented, and easy for your team to extend.
I'm a Full-Stack .NET Developer and Technical Lead with 3 years of production experience building APIs for UK enterprise clients. My recent work includes a real-time analytics API for the UK Department for Education and microservices for the Welsh Rugby Union using Domain-Driven Design.
What you get:
Clean ASP.NET Core API with proper separation of concerns. EF Core integration with your database. JWT authentication and role-based authorization where needed. Request validation with FluentValidation. Swagger / OpenAPI documentation auto-generated. Source code, ready to deploy.
My stack:
C#, ASP.NET Core, .NET 10, EF Core, PostgreSQL, SQL Server, Docker, Azure, AWS, GitHub Actions, FluentValidation, AutoMapper, MediatR.
Send me a message before ordering with a brief on your endpoints, database, and authentication needs. I'll respond within 24 hours with a clear plan and any clarifying questions before we start.
Get to know Cherno Cham
Cherno Cham
Full Stack NET Developer specializing in ASP NET Core, Vue 3, PostgreSQL
- FromGambia
- Member sinceSep 2025
Languages
English
Full-Stack .NET Developer and Technical Lead with 3 years building production software for UK and Gambian clients.
Stack: C#, ASP.NET Core, .NET 8, EF Core, Vue.js 3, PostgreSQL, SQL Server, Docker, Azure, AWS, CI/CD.
Shipped a real-time dashboard for the UK Department for Education, a compliance platform serving 65 organisations, an aviation ERP, and Welsh Rugby Union microservices.
I take on custom web apps, API design, database work, .NET legacy modernisation, and DevOps setup. I scope clearly and ship in small iterations.
Other Software Development Services I Offer
FAQ
What database engines do you support?
PostgreSQL, SQL Server, MySQL, and SQLite are all supported via Entity Framework Core. I can also work with existing databases by reverse engineering the schema.
Can you integrate with my existing frontend?
Yes. The API will follow REST conventions and return JSON, so it works with any frontend including React, Vue, Angular, mobile apps, or other backends.
Do you handle authentication?
Yes. Standard package and above include JWT authentication with refresh tokens. I can also integrate with external providers like Auth0, Azure AD, or AWS Cognito on request.
Will the code follow best practices?
Yes. I follow Clean Architecture patterns, SOLID principles, async / await throughout, proper exception handling, and dependency injection. The Premium package adds CQRS with MediatR.
My API needs more than 30 endpoints. Can you still help?
Yes. Send me a message with your requirements and I'll quote a custom price. Larger APIs typically run between $1,500 and $4,000.
Do you provide deployment support?
Deployment to Azure or AWS is available as a Gig Extra for $200. I'll deploy the API and configure environment variables, database connections, and basic monitoring.
Do you sign NDAs?
Yes. Happy to sign your NDA before reviewing any business requirements or sharing repository access.
