.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.

De 194,060 opiniones, los clientes califican nuestro .NET Developers 4.9 de un total de 5 estrellas.
Contratar a .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.

De 194,060 opiniones, los clientes califican nuestro .NET Developers 4.9 de un total de 5 estrellas.
Contratar a .NET Developers

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    25 trabajos encontrados

    Desarrollo de proyectos sobre el ERP desarrollado a medida en VB6 y VB.net.

    $17 / hr Average bid
    $17 / hr Oferta promedio
    49 ofertas

    I need a full-stack, self-hosted .NET solution that runs a 2 × 2 matrix MLM system. The site must let new members register under a sponsor, automatically position them in the chain, and reflect spill-over earnings in real time. Core roles are Standard user, Sponsor and Admin. A registered user should see a clean dashboard that shows an earnings overview, live balance details and a searchable transaction history. From that same panel they must be able to deposit, withdraw or transfer BEP20-based USDT, with each on-chain action recorded to the ledger and mirrored instantly in the database. The admin control panel must allow me to browse every account, approve or reject any pending deposit/withdraw request, modify wallet addresses if needed, and trigger manual payouts. Every sensitive...

    $21 Average bid
    $21 Oferta promedio
    7 ofertas

    I need a fully working Website (use the register link with sponsorid = 052832 to study every screen and flow & API calls in Firebug Console for Json Data) rebuilt in ASP.NET and wrapped in a fresh theme. I only want to tweak the colour scheme and make a few layout adjustments, but everything else—from menus to dashboard widgets—should behave exactly like the original. Mobile responsiveness is the main design priority, so please build the UI with Bootstrap and test it thoroughly on phones and tablets. Alongside the web version I also need an Android application that consumes the same APIs and runs smoothly from Android OS v8 up to v16. The platform must include a secure BEP-20 BNB Smart Chain wallet module. I would like the architecture left open so other chains can be plu...

    $10 - $30
    $10 - $30
    0 ofertas
    Multi-Module .NET Travel Portal
    6 días left
    Verificado

    I’m building a new travel portal that should feel and flow almost exactly like Onetravel (about 90% of its current UX), but written end-to-end in .NET with Bootstrap so the layout stays fully responsive on every page. Core flow From Search → Listing → Detail → Add-On → Contact → Payment → Confirmation each module has to work seamlessly. For demo I need the Flight booking piece up and running before we expand to Hotel, Car, Bus and Holiday packages+ an Android app for the same Flight module must include • Search flights • Flight details page • Add-on services (bags, seats, meals, etc.) • Contact • Payment • Confimation page with Email to user • Data Saved on Google Sheets as Tables Under the hood • Mo...

    $49 Average bid
    $49 Oferta promedio
    21 ofertas

    Legal Automation and Auction System (Phase 2) We are seeking a freelancer or team to develop Phase 2 of a legal automation and auction system. Phase 1 of the system has already been completed and delivered, including functionalities such as SecureViewer, Watermarking, Mobile Launcher, Nexo FPDN, CI/CD, anti-SQL/XSS protection, hard gates, and multi-tenant architecture. This is an opportunity to work on a complex and innovative project in the legal sector. The scope of Phase 2 encompasses 22 essential deliverables, focused on enhancing the system's intelligence, automation, and integration. Deliverables include: Deep Scan of Winning Theses, Procedural Vulnerability Analysis (AVP), Auction Radar (Smart, Ninja, Zuk, Mega) , Hash + Timestamp + Print App, Tactical Inspection (GPS + Hash)...

    $575 Average bid
    $575 Oferta promedio
    136 ofertas
    BEP20 MLM .NET Platform
    5 días left
    Verificado

    I need a full-stack, self-hosted .NET solution that runs a 2 × 2 matrix MLM system. The site must let new members register under a sponsor, automatically position them in the chain, and reflect spill-over earnings in real time. Core roles are Standard user, Sponsor and Admin. A registered user should see a clean dashboard that shows an earnings overview, live balance details and a searchable transaction history. From that same panel they must be able to deposit, withdraw or transfer BEP20-based USDT, with each on-chain action recorded to the ledger and mirrored instantly in the database. The admin control panel must allow me to browse every account, approve or reject any pending deposit/withdraw request, modify wallet addresses if needed, and trigger manual payouts. Every sensitive...

    $306 Average bid
    $306 Oferta promedio
    10 ofertas

    Our live platform, built on .NET Core (MVC, C#), needs an experienced bilingual Arabic/English developer to step in on a part-time basis and keep everything running smoothly while we roll out new capabilities. The work is time-sensitive—ideally code starts moving this week—so I need someone who can plug in and contribute immediately. Scope of work The current solution spans several modules that exchange data with internal and third-party services. Typical tasks include tracing and resolving production issues, refactoring brittle sections for performance, tightening security around existing endpoints, and adding small to medium features as specifications come through. You will work against an Azure DevOps repository, create pull requests with meaningful commit messages, and d...

    $540 Average bid
    $540 Oferta promedio
    109 ofertas

    I’m hiring a seasoned .NET + Angular engineer who can act as a personal mentor for a friend of mine in Udaipur. She has three years of support experience in infosys and has just moved into an SDE role in different company, so she needs guided, practical coaching rather than generic tutorials. The focus is pure mentorship and guidance delivered through one-on-one video calls. During these sessions you will walk her through the tickets already assigned to her, explain the underlying concepts, review her code, and show her how to debug, refactor, write tests, and follow best practices that align with real-world enterprise workflows. Early in the engagement I’ll also need a brief, well-vetted shortlist of a few additional .NET/Angular tutors (with phone numbers) so we have backup...

    $235 Average bid
    $235 Oferta promedio
    33 ofertas

    I need a Windows-based typing application, built to mirror the exact pattern used in Indian government recruitment exams. The program must run smoothly in both online and offline mode so that a candidate can practise anywhere and then sit a timed test even if the internet drops. Core functionality • Practice mode stocked with graded typing exercises. • Full-length mock tests that reproduce the official exam interface, timer and font rendering. • A performance dashboard that tracks speed, accuracy and trend lines over time. Language support All content, UI prompts and result reports should work in English and Hindi from day one. If you architect the system cleanly I can add further regional languages later, so keep strings externalised. Benchmarks Speed and accur...

    $629 Average bid
    $629 Oferta promedio
    52 ofertas
    Zynga Chips Panel
    4 días left
    Verificado

    I need a custom Windows-compatible control panel that can automatically handle Zynga Poker chips from end to end. The core of the project is threefold: • Chip generation – the panel must reliably create chip quantities I can define on demand. • Transfer management – once generated, the chips should move between accounts smoothly, with options to schedule or batch transfers. • User account control – I have to be able to add, edit, suspend, or delete game accounts directly inside the panel. Code quality and stability matter more to me than flashy graphics, so feel free to use a lean UI framework that keeps things fast and uncomplicated. A clear dashboard, real-time status indicators, and basic logging/export will cover my day-to-day needs. You are fre...

    $2107 Average bid
    $2107 Oferta promedio
    85 ofertas

    I’m building an AI-driven web application that combines Natural Language Processing and Predictive Analytics to deliver real-time insights for end users. The stack is already defined: • Front-end: React.js • Service layer: Node.js • Core business logic: .NET (C#) microservices, Firebase • High-speed caching/pub-sub: Redis • Infrastructure & DevOps: Microsoft Azure (App Service, Functions, Container Apps, Azure SQL/Storage, and Redis Cache) Scope of work 1. Design a clean React interface that consumes RESTful and WebSocket endpoints. 2. Build scalable Node.js gateways that route traffic to .NET microservices and manage authentication/authorization. 3. Implement NLP and predictive models (Azure Cognitive Services or custom models) and exp...

    $82 Average bid
    $82 Oferta promedio
    29 ofertas

    I’ve already built a working medical prototype inside Google AI Studio and now I need it packaged as a true standalone Windows desktop application. The main responsibilities will be: • Re-architecting the current Google AI Studio build so it installs and runs natively on Windows without any command-line dependencies. • Designing a data layer that lets each clinic choose either a local, offline database or a secure cloud-hosted option, with an easy switch between the two. • Implementing strong security around patient records and treatment plans: encryption in transit and at rest, role-based access, and a well-structured authentication flow. • Guiding me through code signing, installer creation, and any compliance considerations typical for medical software. ...

    $513 Average bid
    $513 Oferta promedio
    147 ofertas

    Project Overview: We need a clean, well-documented, production-ready .NET-based ABDM integration component for our healthcare project. The solution must support ABDM/ABHA official workflows for M2 and M3 modules. Expected Functional Scope: • Integrate with official ABDM APIs for M2 (HIP) and M3 (HIU) workflows • Consume ABDM requests and callbacks correctly • On receiving ABDM data requests, query our internal healthcare database and generate the required FHIR-compliant resources/bundles • Return/share health records back to ABDM in the required format, including encryption/security requirements • Support consent-based health information exchange flows • Support ABDM gateway communication, token/auth flows, callbacks, and auditability • Design sol...

    $4292 Average bid
    $4292 Oferta promedio
    18 ofertas

    I need help troubleshooting and fixing a PowerAutomate flow that I've set up for SharePoint. The flow is intended to create sites linked to two main hubs for our residential construction projects, but it fails mid-process while connecting to SharePoint. Key Issues: - PowerAutomate flow errors - Flow fails mid-process - Fails while connecting to SharePoint Ideal Skills & Experience: - Proficiency in PowerAutomate and SharePoint - Experience with troubleshooting PowerAutomate flows - Familiarity with SharePoint site creation and data manipulation

    $27 / hr Average bid
    $27 / hr Oferta promedio
    111 ofertas
    Senior IT Recruiter Needed
    3 días left
    Verificado

    I’m building a hiring pipeline for several senior-level Software Developer roles and need a recruiter who can quickly surface the right talent. Each position demands strong, hands-on proficiency with C# and the .NET stack, so your sourcing should focus on candidates who live and breathe that ecosystem. Here’s how I picture our collaboration: • You’ll study the job description I provide, clarify any grey areas with me, then launch targeted searches across LinkedIn Recruiter, GitHub, Stack Overflow, job boards, and your own network. • Within the agreed timeframe, I expect a short-listed batch of screened résumés—people who match the must-haves on skills, seniority, location, and salary range. • For every candidate, include a concise ...

    $595 Average bid
    $595 Oferta promedio
    25 ofertas

    I have a collection of mature Windows automation scripts written in PowerShell and I want every bit of that logic rewritten in clean, production-ready C#. The end result should be a head-less Windows service/agent—no GUI—capable of handling all existing task-scheduling duties without requiring user interaction once installed. What you’ll be touching: • Windows internals: services, scheduled tasks, processes, file system, event logs • Registry read/write with safe rollback logic • WMI and other system-management APIs for device and OS-level operations • Packaging and deployment strategies that avoid common antivirus false positives; signed binaries are strongly preferred Scope of work 1. Analyse the current automation scripts and design an equiv...

    $1110 Average bid
    $1110 Oferta promedio
    64 ofertas

    I need a complete, working business suite that covers Accounting, Sales, Inventory, Invoicing and Personnel Payroll. You may deliver it as one integrated application or as clearly linked modules, provided every part runs reliably on its own and shares data smoothly. Accepted languages are Python, C or Visual Basic .NET—choose whichever you already master. What matters most is that you hand over the full, well-commented source code, a sample database, and clear build/run instructions so I can compile or execute everything on a Windows machine without extra troubleshooting. Typical flows should work out of the box: inventory updates after a purchase, receivables after a sale, payroll entries posting to the ledger, plus standard reports such as trial balance, income statement, stock...

    $502 Average bid
    $502 Oferta promedio
    117 ofertas
    WhatsApp API Status Integration
    2 días left
    Verificado

    I already send messages from my web-based application through the Meta WhatsApp Business Cloud API, but what I am still missing is a reliable feedback loop. Whenever I blast, say, 1,000 messages I need my software—an ASP.NET site running on SQL Server—to receive the delivery receipts and failure notices automatically, without anyone logging in to the Facebook/WhatsApp dashboard. The job is straightforward: • Create and expose a secure webhook endpoint in C# (ASP.NET). • Complete the verification handshake with Meta and subscribe to message-status events. • Parse each incoming callback, identify the phone number and status (delivered, failed, etc.), and write it into the tables that already exist in my SQL Server database. • Return a simple success re...

    $81 Average bid
    $81 Oferta promedio
    32 ofertas

    I manage both Indian wedding shoots and post-production for American clients, so dozens of events, photographers, editors, invoices, and deadlines move through my hands at once. At the moment everything lives in a sprawling Excel file that my manager updates, but scrolling through rows is slowing us down. I want that spreadsheet converted into a clean, purpose-built desktop application that runs natively on Windows and Mac. What the app must do • Create a job card with client details, shoot date, assigned team members, and promised delivery date. • Let us update team status in real time—who’s shooting, who’s editing, who’s designing albums—so I can see bottlenecks at a glance. • Track every deliverable (footage, edited photos, highlight f...

    $10 Average bid
    $10 Oferta promedio
    12 ofertas

    I need a seasoned C# desktop developer to sit with me for a focused 2–3 hour session and walk through the technical decisions behind an industrial-grade, SCADA-style application. My biggest dilemma is which UI framework gives the best performance for this use case—WPF, WinForms, or possibly something I have not yet considered. During the call we will review: • How each framework handles high-frequency, real-time tag updates from an OPC DA server and what that means for CPU, memory, and UI responsiveness. • Proven libraries or wrappers you rely on for robust OPC DA connectivity, plus scaling tactics for hundreds or thousands of tags. • Architectural patterns that make a drag-and-drop graphic screen designer maintainable. • Module boundaries, thread...

    $27 / hr Average bid
    $27 / hr Oferta promedio
    17 ofertas
    Remove .EXE Login Check
    1 día left
    Verificado

    I have a Windows desktop application that currently forces users through a login screen every time it starts. I no longer need any form of authentication and want that step completely removed. Key details: • I only possess the compiled .exe—no source code is available. • The end goal is a clean, working executable that launches directly into the main interface with all features intact and no calls to the original login routine. Deliverables: 1. Patched .exe with the authentication logic fully bypassed. 2. Brief technical notes outlining the method you used and any changes applied, so I can reference them in the future. Please ensure the final build passes a quick functional test on Windows 10/11, with no antivirus flags or instability introduced. If you have solid ex...

    $25 Average bid
    $25 Oferta promedio
    25 ofertas
    Legacy MVC to .NET Core API -- 2
    1 día left
    Verificado

    I need to migrate several legacy .NET MVC controller classes into a clean, versioned RESTful API built on .NET Core. The goal is to keep every existing feature running exactly as it does today while modernising the stack and adopting current design standards and best practices. Scope The original controllers encapsulate business logic, data access and some inline validation. Your job is to refactor this code into a layered .NET Core Web API project that follows REST conventions, uses dependency injection, async/await throughout and separates concerns (controllers, services, repositories, DTOs). Authentication must be switched to stateless JWT tokens generated and validated inside the new API. start your proposal with the word ' My Tasks' I will provide the full legacy project...

    $124 Average bid
    $124 Oferta promedio
    82 ofertas
    C# Money Proration Function
    1 día left
    Verificado

    I need a concise, well-documented C# function that accepts a total dollar amount and an in-memory collection of pre-defined percentage shares, then returns the exact amount that should go to each fund. The split must always be based on a percentage, never equally or by fixed figures, and the sum of the results must match the original total after any rounding is handled. I will provide the list of fund names with their percentages; your code should validate that those percentages add up to 100 %. Please keep the logic isolated in a single static method (or a small utility class if you prefer) so I can drop it straight into an existing .NET project. Deliverables • Clean, readable C# source code with inline comments • A brief usage example or small unit test set proving the ...

    $21 / hr Average bid
    $21 / hr Oferta promedio
    89 ofertas

    I’m looking to bring an experienced ASP.NET developer on board to handle the core development work of an application that will eventually span SQL Server back-end integration, RESTful API connectivity, and ongoing maintenance. At this stage the priority is the ASP.NET layer itself—clean, well-structured C# code, razor pages or MVC (depending on what you’re most comfortable with), and clear separation of concerns. There’s no hard deadline; I value robustness and readability over a rushed delivery. You’ll have time to architect properly, write unit tests, and document your work so later deployment and maintenance phases run smoothly. If you’re comfortable wiring in Entity Framework, setting up dependency injection, and designing endpoints that can later b...

    $12 / hr Average bid
    $12 / hr Oferta promedio
    70 ofertas

    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 Oferta promedio
    26 ofertas

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