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I am building a web-based application in .NET and need help completing the data-management layer. The system must store and manipulate two primary datasets—user information and transaction records—while enforcing role-based access for Admin and standard User accounts. Here is what I need from you: • Design or refine the database schema so both datasets are structured for scalability and easy reporting. • Build the API and back-end logic in ASP.NET (Core 6 or later preferred) with Entity Framework for data access. • Implement CRUD operations, search, basic filtering, and pagination for each data type. • Add role checks so Admins can see, create, update, and delete everything, while Users have read/write rights only to their own records. • Integrate simple front-end views (Razor Pages or Blazor Server is fine) that let me test all endpoints end-to-end. Acceptance criteria 1. All endpoints return 200/201 and the correct JSON when hit from Postman. 2. Admin and User roles are enforced through an attribute-based authorization policy. 3. A short README explains how to run a local build and apply migrations with dotnet ef. If you have production experience with ASP.NET Core, Entity Framework, and SQL Server (or PostgreSQL), I’m ready to get started right away.
Project ID: 40444634
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62 freelancers are bidding on average $76 USD for this job

I have extensive experience in asp.net core and can help you build the layer quickly, looking forward to discuss further
$20 USD in 7 days
8.6
8.6

I’m excited to apply for your project and bring my expertise in .NET and backend development to help you build secure, scalable, and high-performing applications. With 8 years of professional experience, I specialize in designing, developing, and maintaining backend systems that drive business success. My Expertise Includes: ✅ .NET Development Building robust applications using ASP.NET Core MVC, Web API, and WebForms. Implementing RESTful APIs and integrating with third-party services. Developing reusable libraries and middleware for modular systems. ✅ Backend Architecture & Database SQL Server, MySQL, and PostgreSQL – query optimization, stored procedures, and indexing. Entity Framework & Dapper for efficient ORM solutions. Designing scalable database schemas and implementing caching strategies. ✅ Cloud & Integrations Deployment and integration with Azure and AWS services. Authentication/Authorization (JWT, OAuth, Identity Server). Payment gateways, email services, and external API integrations. ✅ Best Practices & Performance Clean code architecture (Onion/Clean Architecture, Repository & Unit of Work patterns). Exception handling, logging (Serilog, NLog), and monitoring. CI/CD pipelines for smooth deployment.
$120 USD in 5 days
6.0
6.0

Hi, I went through your requirement and I have more than 10 years of experience in ASP.NET Core, Entity Framework, SQL Server, PostgreSQL, Angular, and backend application development. I have worked on multiple projects involving API development, role-based authentication, CRUD operations, pagination, filtering, database design, and secure user management systems. I can help with: Database schema design and optimization ASP.NET Core Web API development Entity Framework Core integration CRUD operations with filtering and pagination Admin/User role-based authorization Razor Pages, Blazor, and Angular frontend integration Postman API testing and JSON validation I have hands-on experience building scalable backend systems with clean architecture and maintainable code structure. I am also comfortable implementing attribute-based authorization policies and secure access handling for different user roles. Currently, I am working as a Full Stack Developer and regularly handle backend APIs, Angular frontend development, database management, authentication systems, and enterprise application workflows. We can discuss the timeline and pricing once I get the complete project details and scope. Looking forward to discussing the project further.
$20 USD in 15 days
5.7
5.7

As an experienced Full Stack Developer with immense knowledge and understanding of .NET technologies, I believe I am the perfect fit for your project. In particular, your mention of ASP.NET Core, Entity Framework, and SQL Server aligns perfectly with my areas of expertise. Over 14 years in the industry has exposed me to a wide range of projects, including building intelligent web applications just like yours. Not only can I design a scalable database schema that ensures efficient data management in your system, but I can also skillfully build the required APIs and back-end logic using ASP.NET Core while leveraging Entity Framework for seamless data access. My proficiency in these technologies allows me to handle complex tasks such as implementing CRUD operations, search functionality, filtering, and pagination effortlessly. What sets me apart is not just my technical skills but my commitment to delivering high-quality code. I have an unwavering dedication to writing clean code that is easily maintainable and deploying it through effective CI/CD pipelines. Additionally, my advanced experience traversing technologies like Python, AI capabilities, US HEALTHCARE Echo System will grant you access to further value-improving options for your platform. Let me handle the powerful data management layer for a smooth operation of your web app!
$20 USD in 7 days
5.7
5.7

Hello, I can help you complete the .NET data-management layer using ASP.NET Core and Entity Framework. I have 9+ years of experience building scalable APIs, role-based systems, and database-driven applications. I will deliver: • Scalable database design • CRUD APIs with search, filtering, and pagination • Admin/User role-based authorization • Razor Pages or Blazor test UI • Clean and maintainable code with proper API responses I can start immediately and provide end-to-end tested functionality with Postman support.
$20 USD in 7 days
4.7
4.7

As someone with a decade of experience as a full-stack developer and extensive knowledge in .NET, API development, C# programming, and PostgreSQL, I am confident that I am the right candidate for this project. Having completed over a hundred successful projects and possessing a deep understanding of ASP.NET Core, Entity Framework, and SQL Server similar to what you require for the project, I can successfully design your database schema for scalability while ensuring easy reporting. In terms of productivity and efficiency, I have a proven record of fast delivery coupled with clear communication. This ensures that your project would be completed on time without any hiccups. Furthermore, I prioritize building scalable and secure solutions which aligns perfectly with your requirements. Together we can bring your vision to life and build not just a web app but a solution that helps your business grow and generate results. Looking forward to discussing the particulars of the project further with you!
$99 USD in 1 day
4.3
4.3

Hi, I am a software engineer. I can create a .NET data management web app for your project.
$20 USD in 7 days
4.3
4.3

Hi, I’m a Senior .NET Backend Engineer with 10+ years of experience building production-grade web applications and APIs using ASP.NET Core, Entity Framework Core, and SQL Server/PostgreSQL. I can build this solution using .NET 10 with a clean, scalable architecture and secure role-based authorization. I’ll design the database schema, implement CRUD APIs with filtering/pagination, and create simple Razor Pages or Blazor Server views for end-to-end testing. Deliverables: * .NET 10 ASP.NET Core application * Scalable database design for users & transactions * Entity Framework Core with migrations * CRUD, search, filtering, and pagination * Admin/User role-based authorization * Postman-testable APIs with proper JSON responses * README with setup and migration steps I can start immediately and deliver production-ready, maintainable code. Looking forward to working with you. Thanks.
$30 USD in 2 days
4.3
4.3

I have extensive experience in C# programming, specifically in the domains of ASP.NET Core, Entity Framework, and SQL Server. This makes me an ideal fit for your .NET Data Management Web App project. I understand the significance of designing a scalable and accessible database schema for efficient data management - a task where I can contribute effectively. Additionally, my proficiency in building APIs using ASP.NET Core with Entity Framework will ensure seamless integration of the back-end logic for all CRUD operations, searching, filtering, and pagination. One crucial aspect of your project is role-based access control, differentiating between Admin and User accounts. With my hands-on experience in building similar authorization policies using attribute-based frameworks, I am well-equipped to integrate this functionality smoothly into your application. Lastly, as someone who values my clients' convenience and ease of use, I will take the time to write a comprehensive README that outlines step-by-step instructions for running the local build and applying migrations with dotnet ef. Let’s collaborate to create a robust data management layer that meets all your requirements!
$30 USD in 1 day
3.8
3.8

With years of experience in .NET and API development, I am confident in my ability to successfully complete your data management web app project. My expertise extends to ASP.NET Core, Entity Framework, SQL Server, and PostgreSQL, all of which are essential to your project’s success. I have the capability to design and refine the database schema for scalability and easy reporting that will meet your specific needs. Furthermore, you can count on me for detailed documentation to ensure smooth navigation through your newly developed system. Your acceptance criteria will be thoroughly met as I make it a point to provide not just functioning code but comprehensive read-me files so that even non-technical users can benefit from my work. Choose me for this project, and you'll have a committed partner who meets deadlines, values communication, and promises quality results at every step of the journey. Let’s team up and create something extraordinary together!
$99 USD in 1 day
3.3
3.3

Hello, I can help you complete the data-management layer for your ASP.NET web application using a clean, scalable architecture with ASP.NET Core 6+, Entity Framework, and SQL Server/PostgreSQL. Based on your requirements, I can implement: * Database schema design/refinement for: * User information * Transaction records * Entity Framework Core integration with migrations * RESTful API development with proper validation and response handling * CRUD operations for all entities * Search, filtering, and pagination support * Role-based authorization using attribute-based policies * Admin/User permission separation * Razor Pages or Blazor Server views for end-to-end testing * Postman-ready endpoints with proper JSON responses Role logic implementation: * Admin: * Full access to all records and management operations * User: * Access limited to their own records only I can also provide: * Clean layered architecture * Repository/service pattern if preferred * JWT or Identity-based authentication * Well-structured EF migrations * README with setup instructions and migration commands I have experience building scalable .NET applications with: * ASP.NET Core * Entity Framework Core * SQL Server/PostgreSQL * Authentication & authorization flows * API integration and backend optimization
$50 USD in 1 day
3.3
3.3

Hi, We’re Doomshell Software Pvt. Ltd., with 20+ years of experience in building scalable .NET applications, secure APIs, and structured data systems. Your requirement for a data management layer with role-based access aligns perfectly with our expertise in ASP.NET Core and Entity Framework. Our Approach: Database Design & Structure • Scalable schema for users and transactions • Optimized for reporting and future expansion • Clean relational structure (SQL Server/PostgreSQL) Backend API Development • ASP.NET Core (v6+) with Entity Framework • Full CRUD operations with search, filtering, pagination • Clean, RESTful API endpoints tested via Postman Role-Based Authorization • Admin vs User access using attribute-based policies • Secure data handling (users access only their records) • Token-based authentication setup (JWT if required) Frontend for Testing • Razor Pages or Blazor Server integration • Simple UI to test all endpoints end-to-end Delivery & Quality • Clean, well-commented code • Working APIs with correct responses • README with setup steps & migration commands We’ll deliver a structured, secure, and scalable backend ready for future expansion. Quick questions: 1. Do you prefer SQL Server or PostgreSQL for deployment? 2. Should authentication be simple role-based or include JWT-based secure API access? Best regards
$20 USD in 7 days
3.4
3.4

With over a decade of experience in web development, I am the ideal candidate for your .NET data management web app. My skillset aligns perfectly with your project needs—from my proficiency in ASP.NET Core to my extensive experience with Entity Framework and SQL Server/PostgreSQL databases. My expertise will aid in crafting a scalable and efficient database structure that facilitates easy reporting. One of my core competencies lies in API development, which includes designing and building robust back-end logic. Rest assured that your CRUD operations, filtering, and pagination requirements will be meticulously implemented to deliver seamless performance. Additionally, I have also successfully enforced role-based access control (Admins vs. Users) through attribute-based authorization policies before, ensuring ironclad security throughout the application. Moreover, my proficiency in front-ending frameworks (Razor Pages and Blazor Server) enables me to integrate simple yet effective UI components for end-to-end testing. I understand the criticality of clear documentation; hence, you can expect an accurate README explaining the local build process and migration steps with dotnet ef. Let's begin collaborating on your project today and transform it into a reality!
$15 USD in 7 days
3.0
3.0

Hello, A scalable data layer with strict role-based access is the backbone of any secure web application. With over 12 years of production experience in full-stack .NET development, ASP.NET Core, and SQL Server architecture, I can quickly and cleanly build your complete backend, APIs, and test views. Here is exactly how I will deliver your requirements: Schema & EF Core: I will design a normalized, scalable SQL Server database for Users and Transactions using EF Core Code-First migrations, ensuring optimized structures for future reporting and rapid querying. API & Core Logic: I will build robust RESTful endpoints (using ASP.NET Core 6 or 8, per your preference) handling all CRUD operations, complete with integrated search, filtering, and efficient server-side pagination. Role-Based Security: I will implement ASP.NET Core Identity. Using attribute-based authorization ([Authorize(Roles="Admin")]) and EF Core global query filters, I will guarantee Admins have global control while standard Users are strictly isolated to reading and writing their own transaction records. Front-End Integration: I will build a lightweight Blazor Server or Razor Pages UI to serve as a functional test harness, allowing you to easily verify all data flows and role checks end-to-end.
$20 USD in 7 days
2.1
2.1

Hello, I have solid experience building ASP.NET Core applications with Entity Framework, SQL Server/PostgreSQL, JWT authentication, and role-based authorization. I can design a scalable schema for users and transactions, implement secure CRUD APIs with filtering/pagination, and enforce Admin/User permissions using attribute-based policies. I’ll also create simple Razor Pages or Blazor Server views for complete end-to-end testing. The project will include clean architecture, migration support, Postman-ready endpoints, and a concise README covering local setup, migrations, and build instructions. Best regards Rakesh Kumar
$77 USD in 7 days
2.5
2.5

Hi, Could you share the current state of your web application so I can get a better understanding? Based on your needs, I can design a scalable database schema and build the API in ASP.NET Core, implementing all CRUD operations and role-based access. With 5+ years of experience in ASP.NET Core and Entity Framework, I can ensure all endpoints function correctly, returning the expected JSON responses from Postman. I’ll also integrate role checks for Admin and User accounts to meet your requirements. I’ll provide a straightforward README to guide you on running the local build and applying migrations effortlessly. If you’d like to proceed, I’m ready to start right away. Best Regards, Muhammad Shahzad
$100 USD in 1 day
1.1
1.1

Your project is well structured, and I can help you build the complete data-management layer in ASP.NET Core 6+ with a clean, scalable architecture. I’ll implement: - optimized database schema for users + transaction records - Entity Framework Core integration - secure REST APIs with CRUD operations - filtering, search, and pagination - role-based authorization using attribute policies - Admin/User access restrictions - Razor Pages or Blazor Server views for end-to-end testing The solution will follow a maintainable layered approach (API + Services + Data Layer) so future expansion remains straightforward. I’ll also ensure all endpoints are Postman-tested with proper JSON responses and EF migrations configured cleanly. For authorization: - Admins: full create/read/update/delete access - Users: access only to their own records I can work with either SQL Server or PostgreSQL and will provide a proper README covering: - local setup - migrations using dotnet ef - running the application I’ve worked on similar ASP.NET Core + EF Core applications involving RBAC, API development, and database design, so I can start immediately and deliver a clean production-ready implementation. Happy to discuss preferred DB choice and project structure before we begin.
$20 USD in 7 days
0.6
0.6

Hello, As a full-stack developer, I have the versatility to adapt and thrive in various technology stacks. I have extensive experience with backend development using C# and .NET, as well as a deep understanding of Entity Framework for data access. My past projects have also entailed designing scalable database structures that enable easy reporting, which aligns perfectly with your project requirements. I believe my proficiency in ASP.NET (Core 6, if preferred) and my familiarity with both SQL Server and PostgreSQL make me an ideal candidate for your job. An essential element of your project is role-based authentication and authorization, ensuring that admins and users have the correct level of access. I have successfully implemented and enforced attribute-based authorization policies in previous projects, including those involving CRUD operations. Additionally, I am familiar with implementing search, filtering, and pagination functionalities - all crucial aspects of any data management application. Finally, but importantly, reliability and clear communication are key pillars of my work ethic, both with clients and within cross-functional teams. My 14 years' worth of experience delivering successful projects is proof of my capability in executing tasks to meet expectations. With me by your side on this journey, you can trust that your .NET Data Management Web App will be built with clean code for future scalability and maintainabili Thanks!
$50 USD in 8 days
0.0
0.0

A data management system with Admin/User role segregation and per-user record isolation is straightforward to build correctly but easy to get wrong in ways that create security holes. I've built exactly that pattern at production scale. On the PMI hospitality platform, I own the multi-tenant data layer handling 70 enterprise clients with strict tenant isolation enforced at the repository level using attribute-based authorization policies. Users see only their own records; admins have full cross-tenant visibility. The system handles concurrent writes, search, and filtering across thousands of properties without leaking data between tenants. For your job I would start by designing the schema with future reporting needs in mind, scaffold the .NET 8 Web API with Entity Framework using a clean repository pattern, then layer in role-based authorization using ASP.NET Core policies before wiring up Razor Pages views for end-to-end testing. What SQL Server edition are you running, LocalDB for now or full SQL Server? That affects the migration strategy and pagination approach I'd recommend.
$28 USD in 7 days
0.0
0.0

I have done several projects like this and delivered to the client who were happy with my work, design and on-time delivery.
$15 USD in 2 days
0.0
0.0

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