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I need a complete end-to-end solution in C# and .NET that covers both the backend and the UI for a multi-service portal. Core features include AEPS transactions, PAN card processing, mobile & DTH recharge, BBPS billing, domestic money transfer, and a small e-commerce module—all served from a single codebase. Security is non-negotiable, so every user flow must enforce two-factor authentication out of the box. I expect a clean RESTful API layer for the mobile client, a responsive web front-end, and an admin dashboard where I can monitor transactions, users, commissions, and settlement reports. Deliverables: • Database schema (SQL Server preferred) and fully commented C# source code • ASP.NET Core Web API with segregated service layers • Razor/MVC or Blazor web interface styled for mobile and desktop • JWT-based 2FA implementation (OTP / authenticator app) • Deployment scripts, environment variables, and concise setup documentation The system should be modular so future services can be plugged in without rewriting the core. Write the code as if it will be audited; naming conventions, error handling, and logging best practices matter. Once the project compiles and deploys smoothly to my VPS or Azure instance and all listed services transact successfully in a staging environment, I’ll sign off.
Projekt-ID: 40246656
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17 freelancere byder i gennemsnit ₹14.151 INR på dette job

With over 94% of my projects completed successfully, I am confident that I can deliver the full-stack .NET multi-service portal you're looking for. My extensive experience in C# and .NET makes me an ideal candidate for this job. I have a deep understanding of the backend and UI development, and have successfully completed similar projects in the past. One of my main strengths is my ability to develop complex, data-driven web applications efficiently. I have a solid experience developing API frameworks for sharing and consuming data from various sources, which will be crucial for your project. Additionally, I'm well-versed in important front-end technologies such as Bootstrap and jQuery, ensuring that you get a responsive web interface as per your requirements. Another reason why you should choose me is my dedication to client satisfaction and quick project completion. I always prioritize effective communication with my clients, ensuring that we are on the same page at every stage of the project. This not only ensures fast and smooth project completions but also helps me to meet your unique requirements effectively. With my skills and experience, your project will be in safe hands and will be delivered on time with top-notch quality.
₹11.325 INR på 2 dage
6,7
6,7

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.
₹7.000 INR på 7 dage
6,1
6,1

I have 21 years of experience, IIT graduate, Principal Software engineer, extensive experince with Software development with .NET MVC, security and blazor pages with distributed system and efficient query development with REST APIs . I can implement JWT auth, AuthO and fulfill all the requirement.
₹17.000 INR på 7 dage
5,7
5,7

Hi, I’m a senior full-stack .NET developer with 10+ years of experience building secure, transaction-driven systems using ASP.NET Core, Web API, Entity Framework, and SQL Server. I’ve worked on financial workflows, payment integrations, and commission-based systems where security, traceability, and clean architecture were critical. For your multi-service portal, I would design a modular ASP.NET Core solution with clearly separated service layers (Application, Domain, Infrastructure) to support AEPS, PAN processing, recharges, BBPS, DMT, and e-commerce from a unified codebase. Each service will be plug-and-play, enabling future expansion without refactoring the core. Security will be built in from day one: JWT authentication with 2FA (OTP or authenticator app), role-based authorization, secure API endpoints, structured logging, and centralized error handling. The REST API will be mobile-ready, while the web interface (Razor/MVC or Blazor) will be responsive and performance-optimized. The admin dashboard will provide transaction monitoring, user management, commission tracking, settlement reports, and audit trails. Database schema design (SQL Server), migration scripts, and clean, well-commented C# code will be delivered with deployment scripts and concise setup documentation for VPS or Azure. Looking forward to collaborating. Best regards, Santhi
₹7.000 INR på 7 dage
7,2
7,2

Hi there, My name is Anupam, I see you want to build custom e-commerce app, I can help you build one, let's connect to discuss your requirement. Thanks, Anupam.
₹100.000 INR på 7 dage
5,2
5,2

With a rich 14-year background in the .NET space, I am confident that my team and I are well-suited to bring your Full-Stack .NET Multi-Service Portal to life. We specialize in developing scalable web applications and reliable software, which aligns well with your project's needs. Our range of skills spans from designing clean and intuitive UIs to building robust backend systems using ASP.NET Core Web APIs. Security is paramount for your project, and as such, it's a top priority for us too. My team has solid expertise in integrating JWT-based 2FA into applications with seamless user flows. We not only meet the required technicality but also follow stringent naming conventions, logging practices, and enhance error handling for smooth auditing. Moreover, our solution will be modular to ensure easy integration of future services. This, coupled with our strong problem-solving skills and experience in CI/CD pipelines on both VPS'es and Azure instances, guarantees not just high-quality work but smooth deployment as well. Can't wait to work on this project, as we understand its potential to revolutionize multi-service financial operations!
₹7.000 INR på 7 dage
3,0
3,0

Looking for a well-rounded and experienced C# and .NET developer to take on this ambitious multi-service portal project? Look no further! With proficiency in .NET, .NET Core, ASP.NET, C# Programming, and MVC just to name a few, I'm confident I have the technical abilities and expertise in web design and development that your project demands. Having successfully built similar dynamic platforms, I understand the importance of modularity and scalability from the get-go. My clean and well-structured codebase follows cutting-edge principles to allow for painless future service additions, which will save you both time and resources down the line. But my understanding of your needs goes beyond merely delivering an exceptional codebase. I also believe in providing full accountability, hence my plans include deploying your project to your VPS or Azure instance while ensuring all listed services transact successfully in a staging environment. Exceptional delivery with full-plan execution is my middle name, let's do this together!
₹10.000 INR på 7 dage
2,5
2,5

Thank you for sharing the details of your project for a Full-Stack .NET Multi-Service Portal. What caught my attention is the comprehensive scope of services you aim to provide through a single codebase, along with the emphasis on security and scalability. With over 7 years of experience in software development, I have successfully delivered similar projects that required intricate backend development and intuitive UI design. Specifically, I have expertise in C# and .NET technologies, making me well-equipped to handle the requirements of this project. Here is my approach to completing this project: - Design the database schema using SQL Server for optimal performance - Develop a clean ASP.NET Core Web API with segregated service layers for scalability - Implement a responsive web interface using Razor/MVC or Blazor for seamless user experience - Integrate JWT-based 2FA for enhanced security and user authentication - Provide deployment scripts and setup documentation for easy implementation In a recent project, I developed a similar multi-service platform that included e-commerce features, secure payment gateways, and user management functionalities. The outcome was a robust system that processed transactions efficiently and provided a user-friendly experience. As I plan to work on your project, I am curious about your preferred hosting environment and any specific integrati
₹1.650 INR på 7 dage
1,8
1,8

Hello Client, Greeting of the day!!!! I read your job description. I can do this job with quality product. I am always available for your support. Thanks
₹15.000 INR på 30 dage
0,9
0,9

Expertise in Full Stack .NET Development: Designing, developing, and deploying scalable web applications using .NET Core/ 5+, ASP.NET MVC, Entity Framework, SQL Server, Angular/React, and Docker. Experienced in CI/CD pipelines, RESTful APls, and cloud deployment (Azure/AWS).
₹5.000 INR på 7 dage
0,0
0,0

I have worked with .net full stack for quite some time, this will be easy task to complete. Let me know all the deets.
₹7.000 INR på 7 dage
0,0
0,0

Hello, I’m interested in building your secure, modular multi-service portal using C# and ASP.NET Core. I have experience developing financial-grade systems with clean architecture, REST APIs, and strong security practices. I understand the platform must support AEPS, PAN processing, Mobile/DTH recharge, BBPS billing, DMT, and a small e-commerce module — all from a single codebase with mandatory 2FA for every user flow. Proposed Approach .NET 8 ASP.NET Core Web API (Clean Architecture) SQL Server (normalized schema) Segregated service layers (Domain, Application, Infrastructure) JWT authentication + OTP / Authenticator-based 2FA Role-based authorization Responsive Razor/Blazor web interface Admin dashboard for transactions, users, commissions & settlements Structured logging, global exception handling, audit trails The system will be modular so future services can be plugged in without rewriting core logic. Deliverables Fully commented C# source code Database schema RESTful API for mobile Responsive web frontend Deployment scripts (VPS/Azure) Environment setup documentation I focus on clean, audit-ready code with proper naming conventions, validation, and security standards. I’m ready to begin with a detailed architecture plan and milestone breakdown. Looking forward to working together.
₹17.000 INR på 11 dage
0,0
0,0

Hello Sir, I am a .NET developer with 2.8 years of experience in ASP.NET Core, Web API, and SQL Server. I have experience in building web applications and fixing backend issues. I understand your requirement and I am confident that I can complete this project efficiently and deliver high-quality work on time. I am ready to start immediately and I will provide full support until the project is completed successfully. Looking forward to working with you. Thank you.
₹5.000 INR på 7 dage
0,0
0,0

I am a dedicated and results-driven ASP.NET C# Developer with over 8+ years of professional experience in designing, developing, and maintaining scalable web applications and enterprise software solutions using Microsoft technologies. I have strong expertise in building secure, high-performance, and user-friendly systems tailored to business requirements.
₹1.600 INR på 1 dag
0,0
0,0

Kanpur, India
Medlem siden feb. 21, 2026
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