.NET is a development framework that enables developers to create applications across different platforms to simplify and speed up development. A .NET Developer can help clients create applications, modernize and update existing code, or produce new code utilizing the .NET framework.

Developers experienced in the .NET suite of technologies and languages such as C#, VB.net, and F# can assist clients with creating web or desktop based applications by taking their project ideas into reality. In addition, these developers also have exprience in building API integrations for various platforms and databases allowing for data imports/exports and storage solutions.

Here's some projects that our expert .NET Developer made real:

  • Automating Outlook emails and splitting messages
  • GraphQL-based API visualizations using .NET platform
  • Database setups and insights from data extracts from PDFs
  • Connecting cloud platforms to support web applications
  • Adapting trading indicators using PineScript for Viewing
  • Developing WinForms for live chart library reactions
  • Enhancing existing SharePoint sites with updates

With the number of projects our expert .NET Developers have helped clients complete, there's no doubt that it is a sought after powerful coding language that works well with modern technologies. Whether you have an idea you would like to bring to life or an application you would like to improve, our experienced developers can help you make it happen with the power of .NET.

Now that you have seen some of the things our expert developers have created, why not post your own project on Freelancer.com today and hire a knowledgeable .NET Developer that meets your particular needs? Our web platform offers secure payment options and quality assurance so you won't be disappointed with what we can do for you.

From 197,145 reviews, clients rate our .NET Developers 4.9 out of 5 stars.
Hire .NET Developers

.NET is a development framework that enables developers to create applications across different platforms to simplify and speed up development. A .NET Developer can help clients create applications, modernize and update existing code, or produce new code utilizing the .NET framework.

Developers experienced in the .NET suite of technologies and languages such as C#, VB.net, and F# can assist clients with creating web or desktop based applications by taking their project ideas into reality. In addition, these developers also have exprience in building API integrations for various platforms and databases allowing for data imports/exports and storage solutions.

Here's some projects that our expert .NET Developer made real:

  • Automating Outlook emails and splitting messages
  • GraphQL-based API visualizations using .NET platform
  • Database setups and insights from data extracts from PDFs
  • Connecting cloud platforms to support web applications
  • Adapting trading indicators using PineScript for Viewing
  • Developing WinForms for live chart library reactions
  • Enhancing existing SharePoint sites with updates

With the number of projects our expert .NET Developers have helped clients complete, there's no doubt that it is a sought after powerful coding language that works well with modern technologies. Whether you have an idea you would like to bring to life or an application you would like to improve, our experienced developers can help you make it happen with the power of .NET.

Now that you have seen some of the things our expert developers have created, why not post your own project on Freelancer.com today and hire a knowledgeable .NET Developer that meets your particular needs? Our web platform offers secure payment options and quality assurance so you won't be disappointed with what we can do for you.

From 197,145 reviews, clients rate our .NET Developers 4.9 out of 5 stars.
Hire .NET Developers

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    28 jobs found

    I’m building an ASP.NET application that will run on IIS and I need reliable support throughout the back-end and database layers. The project covers three SQL-related areas: designing and structuring the database from scratch, migrating legacy data into the new schema, and then fine-tuning queries so performance stays sharp under load. On the application side I’m using Web Forms for the user interface, backed by a set of API services that expose selected functionality to other systems. Robust authentication and authorization must be baked in from the start so we can meet internal security policies. You’ll work mainly with Microsoft SQL Server, C#, and VB.NET (some legacy modules are in VB). Familiarity with Windows Server administration is a plus as it speeds up trouble...

    $11 / hr Average bid
    $11 / hr Avg Bid
    12 bids

    I'm in need of a data-savvy software developer based in Mumbai, with over 6 years of experience. The ideal candidate should have a strong background in data science, Python, SQL and API integration. The project involves developing a desktop application compatible with Windows operating system. Key Requirements: - Over 6 years of experience in software development - Proven expertise in data science, Python and SQL - Experience in API integration - Based in Mumbai - Experienced in building data-driven solutions and implementing algorithms - Skilled in Windows desktop application development - Familiarity with machine learning frameworks such as TensorFlow or scikit-learn - Experience with project management and version control tools like Git - Ability to create data visualizations and ...

    $1289 Average bid
    $1289 Avg Bid
    49 bids
    Deploy React & .NET on KVM
    6 days left
    Verified

    I’m running a fresh KVM 1 VPS on Hostinger and I need the whole stack—React front-end, .NET back-end, and a SQL database—live in production. The machine is still vanilla, so you’ll start by choosing and hardening the OS (most likely Ubuntu, but I’m flexible if you see a better fit). Once the base is ready, I’ll count on you to: • install the correct Node, React build tools, and the matching .NET runtime • wire the SQL engine (SQL Server or MariaDB—advise me on the pros and cons for this size app) • configure Nginx or Apache as a reverse proxy with HTTPS, automatic renewals, and sensible caching • set up environment variables outside the repo, log rotation, and a simple backup routine • give me a one-command (or...

    $6 / hr Average bid
    $6 / hr Avg Bid
    36 bids

    I need a custom-built inventory management application that runs natively on Windows desktops. The core focus is robust reporting and analytics paired with an intuitive supplier-management module, so I can monitor purchasing patterns, lead times, and cost trends in a few clicks. Here are the essentials I’m expecting: • A clean, responsive Windows UI (WPF, WinForms, Electron—use what you’re strongest in) connected to a solid database layer. • Reporting & analytics dashboards that let me slice stock data by SKU, date range, location, and supplier, with export to Excel/PDF. • A supplier management section where I can store contacts, terms, past orders, and automatically flag preferred vendors. • Straightforward install package or one-click upd...

    $149 Average bid
    $149 Avg Bid
    47 bids

    Note: If you are based in Lucknow and have time to work 10:00AM TO 5:00PM only apply I'm in need of a highly experienced .NET developer to run and maintain an existing web application built with ASP .NET. The application is already developed, and I require someone who can ensure its smooth operation and address any potential issues that may arise. Key Requirements: - Extensive experience with ASP .NET framework - Ability to run and troubleshoot existing web applications - Strong problem-solving skills to ensure application stability and performance Ideal Skills and Experience: - Proven track record of managing and maintaining ASP .NET web applications - In-depth knowledge of web application architecture and development - Excellent communication skills to provid...

    $290 Average bid
    $290 Avg Bid
    27 bids
    Senior Interview Proxy Needed
    5 days left
    Verified

    I have a steady stream of recruiter, technical and HR screening calls coming up and need an experienced web-development professional who can step in for me on each one. The conversations cover full-stack topics, most often in Java, C#, Python and React Native, with occasional .NET questions. Your task is simple: join every scheduled call on my behalf, answer confidently, and carry the discussion through to the next stage until a formal offer is issued in my name. You should be able to speak to at least six or seven years of end-to-end web-development experience, explain project architecture decisions, discuss common design patterns, and handle soft-skill questions during HR screenings just as comfortably as the technical deep dives. Reliable English fluency and a calm, professional pho...

    $462 Average bid
    $462 Avg Bid
    35 bids
    2-Hour Desktop SaaS Training
    5 days left
    Verified

    I’m scheduling a focused two-hour live session where you guide me, step by step, through building a Windows desktop application that mirrors the training-management slice of SkillDB. We’ll be working with Open Claw and Anthropic’s Claude, so I need you to show me how to install and configure both tools locally, explain their usage patterns, and integrate Claude’s API calls inside a small Node.js/Electron codebase opened in Visual Studio. During the call we will: • Design a clean database schema from scratch (I don’t have one yet) for roughly 50 employees, covering their development journey and all training-related data. • Scaffold the desktop app, wire up the training-management views, and connect them to the schema. • Demonstrate at least...

    $80 Average bid
    $80 Avg Bid
    17 bids

    I need a small, accurate program that accepts two medium-resolution JPEG photographs of a finished metal assembly and automatically presents them side-by-side, with every visual difference clearly highlighted on the right-hand image. The purpose is simple: help our fabrication team spot mis-welds, missing brackets, or other subtle manufacturing deviations without having to inspect the parts manually. Here is what matters most to me: 1. The tool must read standard JPEGs shot between 720p and 1080p—you can assume consistent lighting but plenty of reflections and shiny edges typical of stainless steel. 2. Output should be a single composite image (or screen) that shows both originals next to each other; regions that differ are accented visually so a technician can locate them in second...

    $1500 Average bid
    $1500
    68 entries
    Proxy Partner For HR Calls
    4 days left
    Verified

    I have a full pipeline of recruiter screens and HR‐focused interviews for senior Java roles and I need a trusted partner who can sit in on those calls for me. Your spoken English must be clear and confident enough to handle small talk, salary discussions, and cultural-fit questions without raising eyebrows. When recruiters ask about technical background you will lean on my profile: 7–8 years of hands-on work with Java as the primary language, plus solid exposure to C#, Python, .NET and React Native. HR conversations should naturally showcase team collaboration, communication, leadership and light people-management stories; I will provide real project scenarios and achievements you can reference. No live coding is expected on these calls, but you should be comfortable answering bro...

    $432 Average bid
    $432 Avg Bid
    30 bids

    I have three Microsoft Power Automate flows that need quick, targeted troubleshooting and permanent fixes: • Flow A throws a Gateway Timeout whenever it reaches the “Connect” connection/service. I need the root cause isolated, the timeout eliminated, and a sustainable solution put in place (retry policy, pagination, connector-side tweak—whatever is truly necessary). • Flow B is supposed to copy a PDF from one location to another, yet the action fails every run. The task here is to get the PDF moving reliably, preserve metadata, and confirm the copy completes within the same run. • Flow C stops on a “group item not available” error. I need you to identify why the item cannot be found (permissions, timing, filter logic, etc.) and make the f...

    $14 Average bid
    $14 Avg Bid
    22 bids

    I’m expanding our software engineering team here in Pakistan and want two strong full-stack engineers who are equally comfortable in ASP.NET and React.js. On any given week you might spin up a brand-new microservice in .NET 7, wire its UI in React + TypeScript, or dive into an older codebase to refactor and patch issues. Clean, well-documented commits and a habit of writing unit tests are essential because we ship continuously. Your day-to-day work will cover both building new applications and maintaining existing ones, and you’ll often be the first line of technical support when something goes bump in production—so clear, proactive communication is as important as your code. We collaborate in English on Slack and track work in Azure DevOps; experience with those (or sim...

    $1055 Average bid
    $1055 Avg Bid
    74 bids

    My Avalonia-based IDE (C# / .NET 10) used to show a real-time XAML Previewer for every .axaml file. After introducing a TabControl the preview vanished, and .axaml files now open with no preview at all. I also have a separate CodeEdit window that still pops up in its own top-level window; I want that editor to appear as another tab inside the existing MainWindow instead, using the framework’s standard tab styling—no fancy visuals, just the normal look. What I need you to do is dive into the current codebase, locate whatever broke when the TabControl was added, and wire the XAML Previewer back in so the live view refreshes exactly as it did before. While you are in there, refactor the CodeEdit window so that opening a .cs file adds a new tab within the same MainWindow instance,...

    $55 Average bid
    $55 Avg Bid
    48 bids

    I’m looking to have a focused business-management solution built—specifically, an inventory-management module. The application should let me: • Add, edit, and archive products • Track in-stock levels in real time • Generate low-stock alerts and simple reorder reports • Export basic summaries to CSV or Excel The initial phase is limited to inventory management only, yet I’d like the codebase structured so additional components—such as CRM or financial reporting—can plug in later without major rework. Please use mainstream, well-supported technologies and include clear setup documentation so I can run the system on a standard cloud VPS. Deliverables: 1. Source code in a public or private repository 2. Database schema with seed da...

    $506 Average bid
    $506 Avg Bid
    186 bids

    HI, I need SharePoint / M365 SME to teach following items. Need help in quick ramp up of new features. Need resource who is actively working on some or all of the list items. We can do 2 hour interactive session on week days. SharePoint Course Requirement --------------------------- 1- packaging and deployment of custom webparts, list, page, site template 2- programming json for formatting columns, views, list forms 3- Data Loss Prevention (DLP) 4- SharePoint Advanced Management (SAM) - content assessment 5- Data Access Governance (DAG) reports to identify and remediate oversharing and permission risks 6- CI/CD pipeline for deployment 7- SharePoint Framework (SPFx) - few practical use case scenarios for coding and deployment 8- PnP tools and provisioning frameworks for standardize de...

    $563 Average bid
    $563 Avg Bid
    174 bids

    Hi, I need a well-structured web application built with the latest version of .NET Core. The project starts from a clean slate, so you will handle everything from solution setup through deployment. MVC or Razor Pages is fine—as long as the code is clean, testable, and follows best practices for dependency injection and configuration management. Because the integration requirements are still open, design the architecture so that payment gateways, third-party APIs, or additional databases can be plugged in later without a rewrite. A responsive front-end (Bootstrap or similar) and clear separation between presentation, business logic, and data layers are expected. Deliverables I will review: • Complete Visual Studio solution with source control history • SQL scripts or m...

    $4 / hr Average bid
    $4 / hr Avg Bid
    74 bids
    Windows Desktop App Upgrade
    3 days left
    Verified

    I’m ready to release the next version of my Windows-based desktop application and need a developer who can take the current build, incorporate the planned feature updates, and package a clean, fully-tested installer. You’ll receive the existing source code, UI mock-ups for the new screens, and a concise change log outlining bug fixes and enhancements. Key goals • Refactor and extend the present code so the new functionality feels native, not bolted on. • Maintain compatibility with Windows 10 and 11. • Produce an installer that supports silent and standard setups. Once you have everything running smoothly on a staging machine, I’d like a brief hand-off session covering what changed, how to compile, and how to push future hotfixes. If you have so...

    $189 Average bid
    $189 Avg Bid
    162 bids

    i need a desktop application and my preferred language is: C# (.NET Windows Forms)

    $131 Average bid
    $131 Avg Bid
    61 bids

    i have a project but its not complete. so i am looking for a talented c# developer to complete my project on time. no time wasters please

    $26 Average bid
    $26 Avg Bid
    39 bids

    This project is a continuation of my existing DIAMOND_TS software developed in C# WinForms. The software and source code already exist. I need an experienced .NET developer to continue working on the existing codebase without changing the current project structure. Remaining work includes: • Continue development from the existing source code. • Complete all pending features discussed earlier. • Implement and integrate IRCTC Rail Connect APK token support if required. • Improve Tatkal booking flow and overall booking stability. • Fix remaining bugs and optimize performance. • Keep the existing UI, SQL Server database, and architecture unchanged. • Deliver clean, tested, production-ready code. This is NOT a new project. It is only a continuation of the ...

    $14 Average bid
    $14 Avg Bid
    18 bids

    C# Desktop Application Developer Needed Project Overview I am looking for an experienced C# developer to build a reliable, well-structured desktop application. The application should have a clean user interface, efficient performance, and maintainable code. Requirements - Strong experience with C# and .NET - Experience developing Windows desktop applications (WinForms or WPF) - Clean, well-documented, and maintainable code - Good understanding of object-oriented programming - Ability to deliver within the agreed timeline - Good communication and regular progress updates Scope of Work - Develop the application according to the provided requirements - Design a user-friendly interface - Implement all required features - Fix bugs and optimize performance - Test the application before del...

    $105 Average bid
    $105 Avg Bid
    41 bids

    Need a Windows Desktop Application Developer Looking for an experienced C#/.NET developer to build a Windows application that integrates with a Melter JE3002 weighing scale (RS232) and a TSC TE244 label printer. Requirements: - Read live weight automatically from the weighing scale. - Detect stable weight. - Print a 35 × 11 mm label with the weight when the Enter key is pressed. - Direct printing without showing the Windows print dialog. - Simple user interface with live weight display, printer/scale status, and settings for COM port and printer. - Fast, reliable, and easy to use in a retail environment. Please share your experience with RS232 communication, label printers, or similar hardware integration projects, along with your estimated cost and timeline.

    $102 Average bid
    $102 Avg Bid
    30 bids

    IXLA ID5 Card Printer Integration with .NET WinForms Application We are seeking an experienced software developer to integrate an **IXLA ID5 card printer** with a .NET Windows Forms (WinForms)** application. ### Project Scope The objective is to develop a simple WinForms application capable of printing personalized data (e.g., applicant or student information retrieved from a database or webapi ) onto **pre-printed, double-sided cards** using the IXLA ID5 printer. ### Project Details * The IXLA ID5 printer driver is already installed and operational. * No official SDK is available for the printer. * A legacy application is currently printing successfully using the existing driver, indicating that communication with the printer is already possible. * The selected developer will be res...

    $990 Average bid
    $990 Avg Bid
    61 bids

    We are looking for a talented and motivated Full Stack Developer to join our remote team and contribute to building scalable, high-performance web applications and digital solutions. Position Details •⁠ ⁠Job Title: Full Stack Developer •⁠ ⁠Location: Remote (Online) •⁠ ⁠Employment Type: Full-Time •⁠ ⁠Working Days: 5 Days per Week •⁠ ⁠Salary: USD 500 / Month Key Responsibilities •⁠ ⁠Develop and maintain web applications from front-end to back-end. •⁠ ⁠Build scalable RESTful APIs and integrate third-party services. •⁠ ⁠Collaborate with UI/UX designers to create responsive and modern interfaces. •⁠ ⁠Design and maintain databases and server-side logic. •⁠ ⁠Optimize applications for performance, security, and scalability. •⁠ ⁠...

    $484 Average bid
    $484 Avg Bid
    163 bids

    I have a set of finished layouts—invoice, purchase order, packing slip, and export invoice—that now need to be recreated as fully-functional DevExpress reports. All data will come from our SQL database, and the finished .repx files must include both conditional formatting rules and the custom calculations already defined in the source documents. You will receive: • The existing design files (PDF and sample data) for each layout • Field mappings to the underlying SQL tables and views • A brief on the specific business rules driving the calculations and highlight conditions What I need back is a clean set of DevExpress report definitions ready to drop into our solution, visually identical to the originals and tested against the provided SQL data. Please no...

    $99 Average bid
    $99 Avg Bid
    23 bids

    We are looking for a Senior Salesforce Developer to join a long-term contract engagement focused on building and integrating scalable enterprise systems. You will work on mission-critical applications involving Salesforce, backend services, and cloud integrations. This role combines strong Salesforce engineering (APEX, LWC) with backend development in C# (.NET) and cloud integration using Azure DevOps and Azure services. You will be responsible for designing, building, and maintaining secure and scalable solutions across the Salesforce ecosystem and external systems. Key Responsibilities Design and develop APEX classes, triggers, test classes, and Lightning Web Components (LWC) Build and maintain Salesforce integrations using REST / SOAP APIs Develop backend services using C# (.NET) to ...

    $1163 Average bid
    $1163 Avg Bid
    112 bids

    I want a complete approval workflow built in Power Automate that plugs straight into an existing SharePoint list. The process is simple: when an item (or document) is created or edited the flow should fire, send a single approval request to a defined Microsoft 365 group, wait for the first response, and then continue. If the item is approved the flow must: • send an email confirmation to the original requester (using Outlook connector) • update the same SharePoint list item with an “Approved” status and any comments returned by the approver If it is rejected, the flow should mark the item as “Rejected” and notify the requester with the approver’s comments. Please package the finished solution with: • the exported .zip of the flow for easy i...

    $157 Average bid
    $157 Avg Bid
    93 bids

    Need help fixing the error message, "Compiler Error Message: CS0433: The type 'SitePage' exists in both 'c:windowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesroot9b6a826f417c9158[login to view URL]' and 'c:windowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesroot9b6a826f417c9158[login to view URL]'

    $1218 Average bid
    $1218 Avg Bid
    26 bids

    Estoy buscando un desarrollador Fullstack en .NET C# que se sume a mis proyectos a la medida. Todas las aplicaciones son multiplataforma y comparten los siguientes requisitos esenciales: • Integración con Microsip ERP mediante API directa. • Consultas y visualización de la base Firebird (trabajo habitual con IBExpert). • Módulo de autenticación de usuarios. Trabajo con sprints cortos; necesito a alguien que pueda tomar historias de usuario, proponer la arquitectura, programar front-end y back-end, documentar lo hecho y entregar código limpio en un repositorio Git. Valoro experiencia comprobable en REST, Entity Framework, patrones de diseño y buenas prácticas de seguridad. Si dominas estas herramientas y te interesa co...

    $21 / hr Average bid
    $21 / hr Avg Bid
    109 bids

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