With 12+ years of professional experience, I help businesses build, modernize, and maintain high-performance web applications using C#, ASP.NET Core, ASP.NET MVC, Web API, SQL Server, and Azure. I've worked on enterprise platforms, business-critical applications, and long-term production systems where reliability, scalability, and clean architecture are essential.
I specialize in understanding existing codebases quickly, solving complex technical challenges, and delivering solutions that are secure, maintainable, and built for long-term growth.
What I Can Help You With
✔ ASP.NET Core & ASP.NET MVC application development
✔ REST API design, development, and third-party integrations
✔ C# backend development and business logic implementation
✔ SQL Server database design, optimization, stored procedures, and performance tuning
✔ Entity Framework, LINQ, and efficient data access solutions
✔ Legacy application modernization and code refactoring
✔ Bug fixing, troubleshooting, and production support
✔ Performance optimization and application scalability
✔ Long-term maintenance, feature enhancements, and technical support
Technical Expertise
Languages & Frameworks
* C#
* ASP.NET
* ASP.NET Core
* ASP.NET MVC
* .NET Framework
* Web API
Database
* SQL Server
* Entity Framework
* LINQ
* Stored Procedures
* Query Optimization
* Database Design
Development Practices
* Clean Architecture
* SOLID Principles
* RESTful API Design
* Object-Oriented Programming (OOP)
* Performance Optimization
* Debugging & Troubleshooting
* Version Control (Git)
Why Clients Work With Me
* 12+ years of hands-on .NET development experience
* Strong experience with enterprise and business applications
* Clean, maintainable, and scalable code
* Fast understanding of existing systems and legacy codebases
* Reliable communication and on-time delivery
* Long-term mindset focused on quality and business value
Although I'm growing my presence on Upwork, my professional experience comes from years of successfully delivering projects for clients outside the platform.
My goal is to build long-term partnerships by providing dependable development, transparent communication, and high-quality results.
If you're looking for a senior .NET developer who can confidently take ownership of your application, improve existing systems, or build scalable solutions from the ground up, I'd be happy to discuss your project.
ASP.NET
ASP.NET Core
ASP.NET MVC
ASP.NET Web API
Web Service
jQuery
Azure App Service
LINQ
Site Planning
Angular
Amazon EC2
Microsoft SQL Server
React
AngularJS
Priyanka D.
Noida, India
$25/hr
5.0
2 jobs
I am a .NET developer with extensive experience, including building diverse applications. While skilled as a full-stack developer, I focus on backend development and now specialize in working with .NET Core 3.0, particularly within Umbraco CMS.
My skills are:
==========
✅.NET Framework and .NET Core
✅.MVC and MVC Core
✅ WPF and Winforms
✅Identity Server 4
✅Blazor
✅ Umbraco CMS.
✅Strong knowledge of MS SQL-Server
✅Entity Framework
✅Telerik and Kendo UI
My specialization revolves around crafting impeccable solutions using a diverse tech stack. Proficient in C#, ASP.NET MVC, ASP.NET Core MVC, ASP.NET Core, Angular, and React, I leverage these technologies to architect robust and scalable software systems.
Microsoft .NET Development Skills:
⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷
As a Full stack ASP.NET developer, I have decent expertise on Microsoft .NET development technologies: I have worked with the following technologies:
✅ .NET Development Data Providers: OLE DB, Oracle, ODBC, CData, Sybase, MySQL, Synergex, Firebird, Npgsql, ADO.NET, SQL Server Compact, dotConnect, SQL Server.
✅ ASP.NET Development CMS: Umbraco, Sitecore, Orchard, DNN, DotNetNuke, mojoPortal, Sitefinity, Kentico
✅ MySQL, SQL Server, Azure SQL, MongoDB, PostgreSQL
✅ Server Technologies: Linux, Ubuntu, RedHat, FreeBSD, Suse, AWS, Rackspace cloud, linode, heroku and Google App Engine
✅ .NET Development WEB SERVICES: OData, SOAP, JSON, REST, ASP.NET Web Services, WCF Data Services, WCF Services
✅ Cloud Computing Platforms: Amazon Web Services, Microsoft Azure
✅ ASP.NET Web Development Frontend Stack:
✅ Code Versioning Tools: Microsoft TFS, GIT, SVN, and Mercurial
.NET Development Services Expertise:
⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷
✅ Custom ASP.NET Development
✅ .NET Software Development
✅ Web Apps Development
✅ Desktop Application Development
✅ ASP.NET Website Development
✅ Database Application Development
✅ ASP.NET Application Development with MVC
✅ 3rd Party API Integration with ASP.NET & Customization
✅ Secure WCF, RESTful, REST, Web APIs Development
✅ Real-time ASP.NET Application Development with SignalR
✅ Microservices Development with ASP.NET Core
✅.NET Application Migration with Legacy Systems
✅ Microsoft Azure Development Services
✅ .NET CMS Solutions
✅ ASP.NET Maintenance & support
✅ Electronic Medical Record System - EMR/EHR
✅ HRM/HRIS, Payroll & Employee Management
✅ Supply Chain (SCM) & Inventory Management
✅ Online Ordering
✅ Hotel & Restaurant
✅ Point of Sale – PoS
ASP.NET
ASP.NET Core
ASP.NET MVC
ASP.NET Web API
C#
.NET Framework
Web Application
Entity Framework
Web Development
ADO.NET
.NET Stack
MVC Framework
MySQL Programming
.NET Core
Umbraco
PostgreSQL
User Authentication
Accord.NET Framework
API
API Integration
Raj Kiran S.
Noida, India
$25/hr
4.7
16 jobs
I am a full-stack web developer with 18+ years of software development experience.
My focus technologies are
ASP.Net (MVC, Web API, Razor Pages, Web forms)
C#, VB.Net
JavaScript, jQuery, HTML, CSS, Bootstrap CSS, Tailwind CSS, Material UI
ReactJS, Signalr,
Net MAUI,
ML.Net
Blazor Server
Entity Framework and SQL Server.
I have extensive experience of developing web applications for many industry verticals.
I am a full stack developer capable of developing Web applications and Mobile applications (using React Native and .Net Maui).
During my professional career I have been responsible for development software from scratch, upgrading legacy applications to latest tech stack, maintaining and enhancing existing applications developed by other developers.
I provide simple and manageable solution for a complex business problem. I communicate regularly regarding the project progress and I focus on understanding the requirements clearly to avoid any confusion while developing features.
Please do check my upwork on work history and portfolio as well.
ASP.NET Core
ASP.NET MVC
ASP.NET Web API
C#
SQL
Web Development
Azure DevOps
JavaScript
Entity Framework
React
Microsoft SQL Server
Blazor
React Native
Harpreet B.
Noida, India
$20/hr
5.0
4 jobs
I am a Top 3 percent developer on Upwork with the Pink badge, helping clients build secure, scalable, and high-performance applications that are designed for real business use.
I design and develop robust software solutions using .NET, ASP.NET Core, C#, and modern backend architecture. My work is not just about writing code. I build systems that support business operations, handle complex workflows, integrate cleanly with other platforms, and stay maintainable as they grow.
My expertise lies in combining strong backend engineering with practical product understanding, allowing me to create applications that are stable, efficient, and ready for long term scalability.
Core Expertise
.NET Development
Application development using .NET and C#
ASP.NET Core development for web platforms and business applications
REST API development and third party API integrations
Backend logic for complex workflows, validations, and business rules
Authentication, authorization, and role based access control
System modernization and migration to modern .NET architecture
Enterprise Application Development
Business applications for internal operations and client facing platforms
CRM, ERP, dashboards, admin panels, and workflow systems
Multi user platforms with secure access and structured permissions
Data heavy systems with scalable backend logic
Integration with external tools, payment systems, CRMs, and reporting platforms
Custom modules based on business specific requirements
Database and Backend Systems
SQL Server database design and query optimization
Entity Framework and backend data modeling
Stored procedures, reporting logic, and transactional workflows
Performance optimization for large data operations
Clean system architecture for scalability and maintainability
Secure handling of sensitive data and system access
System Design and Engineering
I focus on building backend systems that are not just functional, but dependable under real world business conditions.
Scalable architecture for enterprise and SaaS products
Clean API design for frontend, mobile, and third party integrations
Modular development for long term product growth
Performance focused backend engineering
Secure and stable code structure for production environments
Cloud and DevOps
Deployment support across Azure, AWS, and other cloud environments
CI and CD pipelines for reliable releases
Application monitoring, logging, and error handling
Environment setup for staging and production
Maintenance support, optimization, and long term stability
What I Build
Custom business applications using .NET and ASP.NET Core
Admin panels, dashboards, and reporting systems
REST APIs for web, mobile, and third party integrations
Workflow automation and operational tools
CRM, ERP, and enterprise portals
Legacy system upgrades and backend modernization
My Approach
I like building software that is clean, stable, and aligned with how the business actually works.
Focus on maintainability, scalability, and security
Build for real workflows, edge cases, and future growth
Keep architecture clean and practical
Write backend systems that are easy to extend and support
Balance technical quality with business priorities
Differentiation
Strong expertise in .NET and enterprise backend development
Experience building systems with real business complexity
Product focused mindset with a strong understanding of workflows and operations
Ability to turn business requirements into scalable technical solutions
Clear communication and reliable delivery throughout the project
Tech Stack
C#, .NET, ASP.NET Core, MVC, Web API, Entity Framework, SQL Server, Azure, IIS, JavaScript, React, Angular, Microservices, Docker, CI and CD
If you are looking to build or improve a .NET based application, I can help you create a solution that is secure, scalable, and built to support real business growth.
Let us build software that is reliable, efficient, and ready for production.
ASP.NET Core
C#
.NET Framework
.NET Stack
Web API
Microservice
SQL
Enterprise Software Development
HVAC System Design
Performance Optimization
.NET Core
Microsoft Azure
Azure Machine Learning
Microsoft Azure SQL Database
REST API
Entity Framework
ERP Software
CRM Software
Rajeev D.
Noida, India
$20/hr
4.9
35 jobs
I have good development experience on ASP.NET MVC, .Net Core, Web API, Angular, Typescript Asp.Net Core, MVC Core, Core API, C#, Blazor, Azure, AWS, Jquery, JavaScript, DataTable, Normal ASP.NET, VB.NET, ADO.Net, Visual Studio, Dynamic CRM, Windows Forms(Desktop Application), Web Forms, Crystal Reports, Boilerplate Framework,SendGrid, Telerik, Kendo UI, Web Service, Java Script, Windows Azure, Json and IIS.
⭐⭐⭐⭐⭐
✅ 30𝟬𝟬+ 𝙃𝙤𝙪𝙧𝙨 𝙒𝙤𝙧𝙠𝙚𝙙
✅ 𝙁𝙪𝙡𝙡 𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧
✅ 𝟏𝟎𝟎% 𝘾𝙡𝙞𝙚𝙣𝙩 𝙍𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙𝙖𝙩𝙞𝙤𝙣
✅ Special experience on Angular,.Net C#, Web API, React, TypeScript Expert.
✅ I have also worked with N-tiers architecture, WCF, REST APIs, Entity framework, LINQ, SSRS, MS Access DB, OAuth and MS SQL Server.
✅ Third Party APIs integrations.
⚙️ RTL (Right To Left) Website Expert.
ASP.NET
ASP.NET Core
ASP.NET MVC
ASP.NET Web API
C#
.NET Framework
SQL
Angular
TypeScript
API Integration
JavaScript
Desktop Application
Visual Basic
.NET Core
Blazor
Narendra S.
Noida, India
$35/hr
4.9
28 jobs
10+ years as a 𝗳𝘂𝗹𝗹 𝘀𝘁𝗮𝗰𝗸 .𝗡𝗘𝗧 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿. Over $100K earned on Upwork with Top Rated Plus status, 100% Job Success, and 1,700+ hours across 25 contracts. I build robust, scalable web applications on the Microsoft stack end to end: ASP.NET Core, C#, Angular, SQL Server, and Azure.
✅ Full stack .NET developer: ASP.NET Core backend in C# plus Angular or Blazor frontend, owned end to end
✅ ASP.NET and ASP.NET Core: MVC, Web API, .NET 6/7/8, Entity Framework, LINQ
✅ C# developer: clean, maintainable, testable C# across the full application
✅ Azure cloud and DevOps: App Service, Azure SQL, Azure DevOps, CI/CD, Docker, Kubernetes
✅ Angular and Blazor: component architecture and responsive UI on a .NET backend
✅ SharePoint: custom development, integration, and migration
✅ Microservices: modular .NET services, REST APIs, and scalable backend architecture
✅ Cross-platform: .NET MAUI and Xamarin mobile apps sharing a C# codebase
✅ Data: SQL Server, Azure SQL, PostgreSQL, T-SQL, SSIS, and Power BI reporting
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 𝗔𝗦 𝗔 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 .𝗡𝗘𝗧 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗘𝗥
Full stack .NET web applications - As a full stack .NET developer I own the complete build: an ASP.NET Core backend in C#, an Angular or Blazor frontend, a SQL Server or Azure SQL data layer, and deployment to Azure. ASP.NET Core web development from requirements through launch, with one .NET developer accountable for the whole stack rather than a single layer.
ASP.NET and ASP.NET Core development - As an ASP.NET developer I build MVC and Web API applications in C# on .NET 6/7/8, with Entity Framework and LINQ for the data layer. ASP.NET Core work covers clean architecture, dependency injection, authentication and role-based access, and the API contracts the Angular frontend consumes. The ASP.NET backend I deliver is documented and structured so your team can extend it.
Azure cloud and DevOps - As a full stack .NET developer on Azure I handle App Service, Azure SQL, Azure DevOps pipelines, CI/CD, Docker, and Kubernetes. Azure work covers cloud migration of existing ASP.NET applications, infrastructure setup, environment configuration, and the monitoring that keeps a production .NET application healthy.
Angular and Blazor front ends - As a full stack .NET developer I build Angular and Blazor front ends wired directly to the ASP.NET Core API. Frontend work covers component architecture, state management, responsive UI, and data-heavy dashboards that stay fast as the data grows.
SharePoint development and migration - As a SharePoint specialist I deliver custom SharePoint development, integration with line-of-business systems, and SharePoint migration. SharePoint work spans intranet and document-management solutions built and maintained alongside the wider .NET stack.
Microservices and API development - As a full stack .NET developer I design modular microservice architectures in C# and .NET, with REST APIs, service boundaries, shared authentication, and an Angular frontend that works cleanly against a distributed .NET backend. I split a monolith only where the boundaries are real.
Cross-platform mobile with .NET MAUI and Xamarin - As a .NET developer I build cross-platform mobile applications with .NET MAUI and Xamarin, sharing a C# codebase across iOS and Android and connecting to the same ASP.NET Core API the web client uses.
Enterprise and data solutions - As a full stack .NET developer I deliver data-intensive enterprise solutions: SQL Server and Azure SQL data modeling, SSIS data pipelines, Power BI reporting, and Azure Cosmos DB. The data layer is designed around how the application actually reads and writes.
𝗪𝗛𝗢 𝗜 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛
Enterprise teams and founders who need one full stack .NET developer to own an ASP.NET Core and Angular build end to end. Companies migrating existing ASP.NET applications to Azure. Teams who need an existing C# and .NET codebase maintained and extended by a developer who can read it fast. Clients who want long-running ownership, not a contractor who disappears at handoff.
𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧
Every engagement starts with a review of your requirements or your existing ASP.NET and C# codebase before any code is written. You get clean, documented full stack .NET development, an application your team can maintain after handoff, and a developer who stays available after launch. Share your scope and I will come back within 24 hours with a full stack .NET development approach and estimate.
ASP.NET
ASP.NET Core
C#
.NET Core
Microsoft SQL Server
Angular
Blazor
Microservice
Microsoft Azure
Azure DevOps
Azure App Service
Microsoft SharePoint
Docker
Database Integration
Azure OpenAI Service
Microsoft Power BI
Azure Cosmos DB
PostgreSQL
Migration
ChatGPT API Integration
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