You will get a secure ASP.NET Core REST API with SQL Server
Project details
Need a secure and maintainable backend for your web, mobile, SaaS, healthcare, or fintech product?
I will design and build an ASP.NET Core REST API using C#, Entity Framework Core, and SQL Server.
Depending on your selected package, the solution can include:
• REST API endpoints
• SQL Server database design and migrations
• JWT authentication and role-based authorization
• Request validation and structured error handling
• Swagger/OpenAPI documentation
• Third-party API integration
• Logging and basic automated tests
• Deployment and configuration support
You will receive clean source code, database scripts or migrations, API documentation, and setup instructions.
I focus on secure architecture, maintainable code, predictable error handling, and reliable performance. Please contact me before purchasing when your project requires more endpoints, multiple integrations, or a complete frontend application.
I will design and build an ASP.NET Core REST API using C#, Entity Framework Core, and SQL Server.
Depending on your selected package, the solution can include:
• REST API endpoints
• SQL Server database design and migrations
• JWT authentication and role-based authorization
• Request validation and structured error handling
• Swagger/OpenAPI documentation
• Third-party API integration
• Logging and basic automated tests
• Deployment and configuration support
You will receive clean source code, database scripts or migrations, API documentation, and setup instructions.
I focus on secure architecture, maintainable code, predictable error handling, and reliable performance. Please contact me before purchasing when your project requires more endpoints, multiple integrations, or a complete frontend application.
Programming Languages
HTML & CSS, ASP.NET, C#Coding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$250
|
Standard
$650
|
Advanced
$1,250
|
|---|---|---|---|
| Delivery Time | 4 days | 8 days | 14 days |
Number of Revisions | 1 | 2 | 4 |
Number of Pages | 2 | 5 | 10 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$100Frequently asked questions
About Muhammad
Healthcare Interoperability & AI Developer | FHIR/HL7, EHR, RAG
Islamabad, Pakistan - 5:16 am local time
If you are struggling with disconnected healthcare systems, unreliable API integrations, complex FHIR/HL7 workflows, manual clinical processes, or AI features that are difficult to move into production, I can help.
I’m a good fit if you need to:
* Build or integrate FHIR R4 APIs
* Work with Firely FHIR Server or Medplum
* Implement HL7 v2 or HL7-to-FHIR transformation
* Integrate EHR/EMR systems using SMART on FHIR
* Connect DrChrono API, clearinghouses, VisionWeb, or other healthcare APIs
* Build Hospital Information System (HIS) or Practice Management System workflows
* Develop Clinic Scheduling App or Nurse Schedule System solutions
* Build RPM, CCM, PCM, or RTM platforms
* Work with WoundCare DME, HCPCS, or ICD coding software
* Support Clinical Document Architecture (CDA), clinical data migration, and healthcare interoperability
* Build solutions aligned with U.S. healthcare standards, ONC interoperability regulations, and TEFCA
* Create Healthcare AI Chatbots, medical documentation web apps, or AI medical scribes
* Build Retrieval-Augmented Generation systems using Azure OpenAI, Azure AI Search, Document AI, OCR, Generative AI, embeddings, and vector database components
* Develop document-management applications with semantic search, vector search, hybrid search, and source-grounded AI responses
What you get by working with me:
* Secure and maintainable healthcare APIs
* Reliable production-grade integrations
* Clean architecture that is easier to extend and support
* Accurate clinical data mapping and transformation
* Better automation of manual healthcare workflows
* AI solutions grounded in your approved documents and data
* Clear communication and practical technical decisions
* A developer who understands both healthcare workflows and software engineering
I may not be the right fit if you are looking for a quick prototype with no attention to security, data quality, maintainability, or production readiness. I focus on solutions that are designed to work reliably beyond the demo stage.
About me:
I have professional experience building enterprise and healthcare software for the U.S. healthcare industry. My core stack includes C#, ASP.NET Core, .NET, REST APIs, SQL Server, Azure, Angular, FHIR, HL7 v2, SMART on FHIR, Firely, Medplum, Azure OpenAI, Azure AI Search, RAG, and OCR.
I have also completed a 5-star FHIR development project on Upwork.
If you need someone who can understand your healthcare workflow, identify the integration challenges, and turn them into a secure, production-ready solution, send me a message.
Steps for completing your project
After purchasing the project, send requirements so Muhammad can start the project.
Delivery time starts when Muhammad receives requirements from you.
Muhammad works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
You share your project goals, requirements, and assets.
Planning & Architecture
I design the solution structure and confirm milestones.