I will build a professional asp net core rest API backend


About this gig
I will design and develop a professional backend system using C# and ASP.NET Core.
This service is ideal for startups, SaaS applications, internal business systems, mobile applications and existing platforms that need a reliable and scalable backend.
Technologies
C#
ASP.NET Core
REST APIs
Entity Framework Core
PostgreSQL
SQL Server
JWT Authentication
Docker
RabbitMQ
MQTT
Swagger / OpenAPI
I can build
- SaaS backends
- Business applications
- REST APIs
- Authentication systems
- Admin backends
- Payment integrations
- Third-party API integrations
- IoT/MQTT backends
- POS backend services
- Microservices
You will receive clean and maintainable source code with a structured architecture.
Please contact me before ordering so we can define the requirements and architecture of your project.
Get to know Armend O
Software Engineer
- FromAustria
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Albanian, German, Italian
FAQ
What do you need from me before starting?
I need your project requirements, API specifications, database requirements, and any existing documentation or source code relevant to the project.
Can you work on an existing ASP NET Core project?
Yes. I can extend, improve, refactor, or integrate new functionality into an existing ASP NET Core application.
Which databases do you support?
I primarily work with PostgreSQL and SQL Server using Entity Framework Core.
Can you implement authentication and authorization?
Yes. I can implement JWT authentication, role-based authorization, permissions, and secure API endpoints.
Can you integrate third-party APIs and services?
Yes. I can integrate REST APIs, payment services, webhooks, MQTT, RabbitMQ, and other external services.
Will I receive the source code?
Yes. You will receive the complete source code developed for your project.
