Hire the Best .NET Framework C# Engineers
in the United States

Clients rate our .NET Framework C# Engineers
Rating is 4.9 out of 5.
4.9/5
Based on 431 client reviews
Matthew W.

Lexington, South Carolina

$55/hr
4.3
89 jobs

With over 20 years of development experience, I build robust, scalable applications that solve real business problems - and I now bring an AI-first approach to both how I work and what I build. My expertise centers on the .NET ecosystem (C#/.NET Core, ASP.NET Core, Entity Framework Core), backed by a full-stack perspective and cloud deployment on Azure. What I bring to your project: AI-Powered Development: I leverage modern AI tooling (Claude Code, Cursor, GitHub Copilot) to ship higher-quality code faster, meaning shorter timelines and lower cost for you, without compromising on architecture or maintainability. Building Intelligent Applications: I integrate AI and LLMs directly into products - from a computer-vision quoting platform that automated manual estimating, to Python applications that turn raw data into clear, narrative reports. If you want to add AI capabilities to a new or existing system, I can help you do it pragmatically. Backend Excellence: .NET Core APIs, Entity Framework, SQL Server, and Azure cloud deployment built for reliability and scale. Full-Stack Capability: From database design to clean, user-friendly interfaces with modern JavaScript (Vue.js). API & Integration Expertise: Building APIs for others to consume, or integrating existing services: payment processors, CRMs, analytics platforms, and third-party AI services. Recent work: I've modernized legacy systems for better performance and lower maintenance cost, automated manual workflows with AI and computer vision, and integrated complex third-party services...always focused on outcomes, not just code. Ready to talk? I take the time to understand your specific challenges and goals before proposing a solution. Let's discuss how I can help you achieve your objectives efficiently and within budget.

  • C#
  • ASP.NET
  • SQL
  • API Development
  • Azure Cosmos DB
  • Microsoft Azure
  • .NET Core
  • Solution Architecture
  • Front-End Development
Aamir M.

Tampa, Florida

$69/hr
4.8
78 jobs

⭐ TOP-RATED | USA-BASED DEVELOPER | SENIOR FULL STACK WEB & APP DEVELOPER 👋 Welcome! I’m Aamir Munir, a Senior Full Stack Web & App Developer with strong experience building scalable Web, Mobile, SaaS, and Data applications using C#, .NET, MERN Stack, React, Node.js, APIs, and modern Data Engineering solutions. I focus on turning business requirements into secure, high-performance, and user-friendly applications. 🚀 What I Can Help You With: ✅ Full Stack Web & Mobile App Development ✅ C# / .NET Core / ASP.NET MVC Development ✅ MERN Stack — MongoDB, Express.js, React.js, Node.js ✅ REST API Development & Third-Party API Integration ✅ SaaS & Business Application Development ✅ Data Engineering, ETL & Data Pipeline Solutions ✅ Snowflake Data Warehouse & Cloud Data Solutions ✅ Application Modernization, Optimization & Maintenance ✅ Authentication, Authorization & Secure Application Architecture 🎨 Frontend & App Development ✅ React.js, Next.js, React Native ✅ JavaScript, HTML5, CSS3 ✅ Redux, Bootstrap, Tailwind CSS ✅ Responsive Web & Cross-Platform Mobile Applications 🖥️ Backend & APIs ✅ C#, .NET Core, ASP.NET MVC ✅ Node.js, Express.js ✅ RESTful APIs & Microservices ✅ JWT, OAuth & Authentication Systems ✅ Entity Framework / EF Core 🗃️ Data & Databases ✅ Snowflake ✅ Microsoft SQL Server ✅ MongoDB ✅ PostgreSQL ✅ Data Warehousing & Data Modeling ✅ ETL/ELT & Data Engineering ✅ Database Design & Query Optimization ☁️ Cloud & Development Tools ✅ AWS | Azure | GCP ✅ Snowflake Cloud Data Platform ✅ Git & GitHub ✅ Docker ✅ Visual Studio / VS Code ✅ Postman | Jira | Agile Development 🤖 I also work on AI-powered applications, automation, and modern data solutions, helping businesses improve efficiency and build smarter digital products. I can handle the complete development lifecycle—from architecture and development to API integration, data engineering, testing, deployment, and ongoing support. My goal is to deliver clean, scalable, maintainable solutions that solve real business problems. 📩 Have a project in mind? Send me a message or invite me to your job. I’d be happy to discuss your requirements and suggest the best technical approach. #FullStackDeveloper #SeniorDeveloper #AppDeveloper #DotNetDeveloper #CSharp #DotNet #NETCore #ASPNET #MERN #MERNStack #ReactJS #ReactNative #NodeJS #NextJS #WebDevelopment #MobileAppDevelopment #SaaS #APIDevelopment #DataEngineering #DataExpert #Snowflake #SnowflakeDeveloper #DataWarehouse #ETL #ELT #SQLServer #MongoDB #AWS #Azure #GCP #AI #Automation

  • C#
  • JavaScript
  • ASP.NET
  • iOS Development
  • .NET Core
  • Full-Stack Development
  • SQL Programming
  • PHP
  • jQuery
  • ASP
  • Data Engineering
  • App Development
  • Flutter
  • React Native
  • Data Analytics
  • AI Development
  • API Integration
  • MVC Framework
  • AI Bot
  • CMS Development
Armen H.

Glendale, California

$50/hr
4.2
13 jobs

I am a senior software developer with 20 years experience. I graduated Faculty of Informatics and Applied Mathematics. Below is my experience more detaily 1. C++, Visual Basic - 20 years 2. programming with Sage 100 ERP - 20 years 3. .NET - 10 years 4. Android Develpment - 5 years 5. Windows Phone Development - 2 years

  • .NET Framework
  • Database Programming
  • Android
  • Object-Oriented Programming
  • Java
Numan U.

Sacramento, California

$40/hr
4.8
69 jobs

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | 𝟭𝟯+ 𝗬𝗲𝗮𝗿𝘀 | 𝟴,𝟬𝟬𝟬+ 𝗨𝗽𝘄𝗼𝗿𝗸 𝗛𝗼𝘂𝗿𝘀 | $𝟮𝟬𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 | I'm a senior .NET / C# developer and Azure cloud architect who builds and scales production systems for companies that can't afford downtime or rework — healthcare platforms, fintech products, e-commerce systems, and real estate/property-management software. If your project needs more than someone who writes code to spec — if you need someone who can architect the solution, own the delivery, and still be there for support six months later — that's the role I take on. WHAT I BUILD ──────────────────────── ✦ SaaS Platforms — multi-tenant, subscription-based .NET Core / Azure applications built to scale from a handful of users to enterprise volume ✦ Healthcare Systems — HIPAA-aware EHR/EMR platforms, HL7/FHIR integrations, and clinical workflow tools built to compliance standards ✦ Fintech & Payments — secure transaction processing, Stripe/PayPal integrations, reporting and reconciliation systems, PCI-conscious architecture ✦ E-Commerce Platforms — custom storefronts, order/inventory management, and integrations with payment gateways, CRMs, and ERPs ✦ Real Estate & Property Management Systems — listing platforms, tenant/lease management tools, and workflow automation for property teams ✦ AI-Powered Features — OpenAI/LLM integrations, intelligent document processing, and AI-assisted workflows added to existing .NET applications ✦ Legacy Modernization — turning outdated ASP.NET/VB.NET systems into maintainable, cloud-ready .NET 8 platforms without breaking what already works TECH STACK ──────────────────────── + Backend: C# · .NET 8 / .NET Core · ASP.NET Core · ASP.NET MVC · Web API · Entity Framework Core · LINQ · Blazor · SignalR · Microservices · REST & SOAP APIs + Frontend: Angular · React · TypeScript · JavaScript · HTML5 · CSS3 · Blazor UI + Cloud & DevOps: Microsoft Azure (App Services, Functions, AKS, Service Bus, Key Vault, Azure SQL) · AWS (EC2, Lambda, RDS, S3) · Azure DevOps · GitHub Actions · CI/CD · Docker · Kubernetes · Infrastructure as Code + Databases: SQL Server · PostgreSQL · Cosmos DB · MongoDB · Stored Procedures & Query Optimization for high-volume systems + Integrations: Stripe · PayPal · Twilio · SendGrid · OAuth 2.0 · HL7 · FHIR · CRM/ERP integrations HOW I WORK ──────────────────────── I stay involved from architecture through deployment — writing clean, documented, production-ready code, and communicating progress clearly at every step. I manage scope, timelines, and stakeholder expectations as carefully as I manage the codebase itself. Depending on what your project needs, I can work as a hands-on senior engineer, a solution architect, or a long-term technical lead. I'll tell you honestly, early, if I'm the right fit for what you're building. Send me your project scope and I'll respond within a few hours.

  • .NET Framework
  • C#
  • Microsoft Azure
  • Azure DevOps Server
  • ASP.NET
  • ASP.NET MVC
  • ASP.NET Core
  • AWS Development
  • Azure DevOps
  • DevOps
  • ADO.NET
  • Microsoft SQL Server
  • Web Form
  • ASP.NET Web API
  • .NET Core
  • VB.NET
  • .NET Stack
  • Azure App Service
  • Angular
  • DevOps Engineering
Naqi K.

Macomb County, Michigan

$25/hr
4.8
25 jobs

Results-driven and client-focused .NET Full Stack Developer with a strong track record of delivering scalable, high-performance applications across web and desktop platforms. I bring over 8 years of hands-on expertise in full lifecycle software development - combining clean, maintainable backend code with responsive and intuitive front-end interfaces. Skilled in both building new applications from scratch and modernizing legacy systems, I ensure every project meets technical standards, business goals, and tight deadlines. Core Skills & Technologies: Backend: C#, ASP.NET Core, Web API, Entity Framework Frontend: JavaScript, HTML5, CSS3, Bootstrap, Blazor, Angular, React (if applicable) Database: SQL Server, T-SQL, database architecture and optimization DevOps & Tools: Git, Azure DevOps, CI/CD, Visual Studio Architecture: RESTful APIs, Microservices, MVC, clean code principles Project Delivery: Agile/Scrum methodologies, clear documentation, stakeholder collaboration What I Offer: Full-stack development tailored to your business needs Clean, well-documented, and testable code Timely communication and reliable delivery Long-term maintenance and support Whether you need to build a complex enterprise system or streamline an existing application, I bring the technical depth and business insight to make your project a success. Let’s connect and turn your ideas into solid, working software.

  • C#
  • ASP.NET Web API
  • Azure DevOps
  • SQL Programming
  • ASP.NET Core
  • nopCommerce
  • ASP.NET MVC
  • AngularJS
  • React
  • .NET Core
  • jQuery
  • RESTful API
  • DocuSign
  • MySQL
  • Microsoft Azure
  • Angular
Blake C.

Tulsa, Oklahoma

$85/hr
4.6
79 jobs

I’m Blake, a dedicated C# .NET developer with a strong focus on building scalable, high-performance applications. With over a decade of experience, I specialize in ASP.NET/Core backend development, complemented by Angular and React front-end solutions. My background also includes SQL databases such as MSSQL, MySQL, and PostgreSQL, along with DevOps practices across Azure and AWS. I also help businesses leverage modern AI tools and APIs to move faster and operate smarter. This includes integrating GPT, Claude, and other AI models into real-world workflows for automation, document parsing, data extraction, web automation, internal tools, and customer-facing features. Whether the goal is reducing manual work, improving operational efficiency, or accelerating development delivery, I focus on practical AI solutions that create measurable business value. Throughout my career, I’ve worked with clients ranging from startups to Fortune 500 companies, helping them achieve their goals through reliable, well-built technology solutions. I led a software development agency for five years, managed a team of 20 developers, and delivered over 50 successful projects. I now work independently as an individual contributor. I’m passionate about creating robust, production-ready applications and using the right tools, including AI, to help clients build faster and smarter. Let’s work together to turn your vision into reality.

  • .NET Framework
  • C#
  • React
  • JavaScript
  • Angular
  • .NET Core
  • API Development
  • Enterprise Software Development
  • ASP.NET
  • Artificial Intelligence
  • Microsoft SQL Server
  • OpenAI API
  • Web Development
  • API

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