.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 192,102 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 192,102 reviews, clients rate our .NET Developers 4.9 out of 5 stars.
Hire .NET Developers

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    23 jobs found

    Wrike Expert Needed – Project Workspace Setup (Gantt, RAID Log, Dashboards, Reports) I am a Project Manager looking for an experienced Wrike consultant to help me set up a complete project workspace in Wrike. I will provide the project plan content (tasks, dates, owners). You will build the structure, views, dashboards and reporting, and show me how to use and maintain it. WHAT I NEED 1. Project structure - Folders/projects organised by phase, stage gates and workstreams - Clear naming and layout that is easy to navigate 2. Custom fields - Owner, team/function, RAG status (Red/Amber/Green), baseline date, forecast date, milestone flag, billable flag 3. Workflows - Task statuses (Not started, In progress, In review, Complete, Blocked) - A simple approval workflow for key document...

    $76 Average bid
    $76 Avg Bid
    13 bids

    I have a multi-tenant SaaS platform built in C# (.NET 6) with a PostgreSQL database and a fairly sizeable Angular front-end. Before we move to the next release I want a fresh, professional set of eyes on the entire stack both server-side and client-side. Your code setup and review should focus on three areas: • Code quality & overall structure: identify duplication, unnecessary complexity, poor naming, missing tests, and anything that will slow future development. • Database access: inspect Entity Framework mappings, raw SQL and stored procedures, connection handling, indexing strategy and query performance. • Security: call out injection risks, authentication / authorization gaps, secrets management, CORS, OWASP Top 10 issues, and any misconfigurations that could ...

    $270 Average bid
    $270 Avg Bid
    62 bids

    We need ongoing help expanding our existing .NET-based web application. We use MVC, C++ and SQL. The full development of this project can start any time between November 10 and January 15, but we need to finalize the concepts now and hire a developer now. Your first task will be to determine which AI tool is best suitable since our code is on a local server and not on Github. We need to add new functionality and then new reports. I want to weave AI capabilities into the product, not to replace coding effort but to speed up our development that would otherwise take longer to build. Also I want to learn from you how to use these AI tools myself. I’m counting on your experience to propose the most appropriate stack for each use case and then implement it. The immediate roadmap inc...

    $4753 Average bid
    $4753 Avg Bid
    190 bids

    I need a Windows-based desktop application that lets me handle every step of my warehouse workflow without relying on browser-based HTML tools. The core flow is simple: products come in, we create or update a job card, materials are issued out against that card, and a delivery challan is generated before dispatch. All of this data has to remain searchable and securely stored for future reference. Key functions the finished software must cover: • Stock-in / stock-out with real-time balance updates • Job card creation, editing, and automatic stock deduction when a card is used • Delivery challan generation (printable and PDF) with auto-save alongside the related job card I should be able to open the program on any Windows 10/11 PC, connect to a local or network datab...

    $231 Average bid
    $231 Avg Bid
    88 bids
    React & ASP.NET Data Manager
    4 days left
    Verified

    I’m building a browser-based data manager and need someone who can comfortably own both halves of the stack: React on the client side and ASP.NET on the server side. The goal is simple and focused—give internal users a smooth way to add, edit, and delete date. You’ll spin up the React front end (ideally using functional components, hooks, and modern state management) and expose a secure ASP.NET Web API that handles the usual CRUD operations plus database-based. Deliverables: • React UI with responsive • ASP.NET endpoints covering full CRUD plus import/export • Integrated with azure services .

    $573 Average bid
    $573 Avg Bid
    109 bids

    Our in-house CRM, built on .NET, suddenly stopped authenticating against its external API. The calls now fail during Basic Auth hand-shake, even though no credentials or endpoint specifications have changed on our side. I need you to dive into the codebase right away, trace the failure path, and deliver a clean, well-documented fix that restores stable connectivity. Scope of work • Review the existing authentication module, configuration files, and any recent commits for regressions. • Pinpoint the precise cause of the Basic Auth failure—be it certificate issues, header formatting, framework upgrade side-effects, or server response handling. • Implement and test a robust remedy in both staging and production environments. • Provide a concise summary of th...

    $23 Average bid
    $23 Avg Bid
    58 bids

    I need a desktop application built from scratch whose core purpose is solid, reliable gerenciamento de banco de dados. Think of a lightweight but professional tool where I can create, edit and maintain records through an intuitive interface rather than raw SQL commands. Scope • Platform: desktop only (choose the language or framework you feel delivers the best performance and long-term maintainability). • Primary feature set: full CRUD operations, data import/export, simple search and filter, user access control and backup/restore. • Architecture: local database is fine (SQLite, PostgreSQL or similar), yet I’m open to your recommendation if you can justify advantages. • Nice-to-have add-ons later could include API integration or reporting, so structuring ...

    $175 Average bid
    $175 Avg Bid
    163 bids

    I want to sharpen my Mandarin through friendly, regular conversation that stays grounded in the things I do every day—.NET development, light video editing, system maintenance, and a fair bit of Excel data wrangling. The goal is simple: use real-world topics I already know to strengthen my vocabulary, listening, and speaking skills. Here is how I picture our collaboration: we meet online at a relaxed pace (there’s no fixed deadline), chat entirely in Chinese, and you step in with gentle corrections and explanations whenever I slip. After each call, a brief note with key new words or grammar points will help me review. If you can weave technical jargon or workplace scenarios into the dialogue, even better. When you apply, please share examples of past work that show your exper...

    $120 Average bid
    $120 Avg Bid
    19 bids

    The work is to maintain and continually iterate a web-based platform that helps our business clients make faster, data-driven decisions. The stack is already defined: back-end services in .NET 6 (C#) with EF Core and a RESTful API, front-end in React with TypeScript, and a SQL Server database. Here is what I need you to build and wire together: • Secure user authentication (JWT or similar) with role-based access • A flexible content-management area where analysts can publish insights, dashboards, and supporting files without touching code • B2B-oriented multi-tenant architecture so each client company sees only its own data and branding You’ll take the lead on architecture, maintain CI/CD in GitHub Actions (or Azure DevOps if you prefer), and deliver clean, ...

    $23 / hr Average bid
    $23 / hr Avg Bid
    227 bids

    Software Developer Needed: MikroTik Hotspot and Voucher Management Application We are seeking an experienced software developer with strong expertise in network management and MikroTik router integration to design and build a secure, user-friendly application for managing hotspot access and subscription vouchers. The application should connect seamlessly with one or more MikroTik routers and provide the following capabilities: - Dashboard: Show active users, connected devices and IP addresses, revenue by voucher usage, system and hotspot logs, router resource usage, and per-user traffic consumption. - Settings: Manage application accounts and access, printer configuration, voucher design and content, and Wi-Fi hotspot details. - Secure router connection: Communicate securely with MikroT...

    $455 Average bid
    $455 Avg Bid
    188 bids

    PLEASE READ THIS !!!!! (if you can not stay within my budget please dont write me i am not going over my budget ) I need a small, self-contained application that lets me create and validate license keys for my Windows desktop software. The workflow is intentionally simple: I type or paste a new key, hit “Save,” and the tool stores it securely; my main application can then call a validation routine (or a lightweight API) to check any key a user enters. Core requirements • Manual entry screen for new keys, with basic field validation to avoid duplicates. • Fast, reliable validation method that I can embed or call from my desktop app. • Secure storage of all keys—file-based, SQLite, or another light local database is fine as long as keys are encrypted ...

    $169 Average bid
    $169 Avg Bid
    199 bids

    I need a standalone GST-compliant billing application built specifically for personal computers, and I want it engineered with full-scale protection and continuous monitoring baked in from day one. The core goal is straightforward: generate accurate GST invoices, manage returns, and keep all financial data locked down against any threat that might target a small-office desktop environment. Security is non-negotiable. Alongside standard encryption and user-level permissions, I expect real-time intrusion detection, automated log analysis, and alerts if anything suspicious touches the system. Think of it as a billing tool that doubles as its own watchdog, so that I can focus on day-to-day accounts without worrying about breaches. Key deliverables: • Desktop-ready GST billing applicatio...

    $247 Average bid
    $247 Avg Bid
    68 bids

    I want a native Windows desktop application that lets fleet managers monitor every aspect of their vehicles from one clean, clutter-free dashboard. The interface must stay simple and minimalistic—think quick-glance widgets, drag-and-drop calendar slots, and clear colour cues—so a manager can find the next service date or missing spare part in seconds, even on a busy yard. Core workflow modules to deliver: • Maintenance scheduling (calendar, reminders, mileage/engine-hour triggers) • Parts inventory management (stock levels, reorder points, supplier links) • Service history tracking (labour, parts used, invoices, attachments) • Driver & conductor details (licences, medicals, incident logs) • Tax & regulatory tracking (road tax, insuran...

    $319 Average bid
    $319 Avg Bid
    63 bids

    Hi! We are a small team that has developed Shuffler (), an Android and iOS app for creating collaborative music videos. Think of TikTok with a different concept: users record short clips to the same song and create a music video together. Its user generated - music videos app. The app was fully functional some time ago, but we had a problem with our previous free server and lost our content. We have now purchased a new server and need an experienced backend developer to restore the backend and get the app running again. We will pay 100usd for that. You will work with our existing C#/.NET backend and help us maintain and improve it. Our previous backend developer will focus on the AI features and will be available to help you understand the existing system. An NDA is required before star...

    $139 Average bid
    $139 Avg Bid
    265 bids

    I’m commissioning a full-stack portal that mirrors the look and feel of the reference site I’ll share privately (). The core requirement is a secure employee-only environment where every user I create has an individually defined expiry date; once that date passes, their credentials must lock automatically without manual intervention. Key workflow • Admin area: simple interface for me to add, edit, or bulk-import users, set their expiry, and review activity logs. • Authentication layer: token-based login, password reset, and optional SSO if it speeds things up. • Communication tools: at minimum an internal messaging feature so staff can exchange information in real time. I’m open to whether that’s a chat module, lightweight forum, or another app...

    $86 Average bid
    $86 Avg Bid
    67 bids

    Our client is ready to move all internal teamwork onto a modern SharePoint-based intranet and I need a specialist to guide the entire build. The primary goal is crystal-clear: enable smooth team collaboration, not simply a document dump. Here is what must be in place: • Robust document management with version control, granular access permissions and fast search so staff can always find the right file and see its history. • Built-in collaboration spaces—chat and messaging, task management boards and discussion forums—so project conversations live alongside the content. • A clean information architecture, security-trimmed navigation and branding that matches the client’s identity. • Configuration of site collections, libraries, lists, metadata, an...

    $461 Average bid
    $461 Avg Bid
    194 bids

    I’m building an online store focused on selling digital products and want an experienced developer to move the project forward. The core storefront will sit on WordPress, yet I also expect custom functionality that may tap into standalone PHP or even .NET components, so a good grasp of all three will be useful. Here’s what I need: • Clean WordPress installation configured for e-commerce • A lightweight theme tailored to digital downloads, fully responsive • Payment gateway integration (credit cards and PayPal at minimum) • Secure, automated delivery of purchased files with license-key support • Clear admin workflows for adding new products, coupons, and reports • Basic on-page SEO and performance tuning so pages load fast • Docum...

    $120 Average bid
    $120 Avg Bid
    292 bids
    B2B B2C Marketplace
    14 hours left
    Verified

    Project Title: Development of a B2B & B2C E-Commerce Marketplace We are looking for an experienced development team or full-stack developer to build a scalable, modern B2B and B2C e-commerce platform. The platform should support individual customers, wholesalers, retailers, suppliers, and business buyers through a unified marketplace. Key Requirements: - B2B and B2C customer registration and management - Multi-vendor marketplace with seller dashboards - Product catalogue, categories, and inventory management - Retail, wholesale, and tier-based pricing - Bulk ordering, minimum order quantities (MOQ), and quotation requests - Shopping cart, checkout, and payment gateway integration - Order processing, shipping, and returns management - Vendor commissions and settlement management - Cu...

    $292 Average bid
    $292 Avg Bid
    65 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

    Necesito elaborar los cómputos métricos y el presupuesto detallado para la construcción de un complejo de apartamentos residenciales. Alcance del trabajo • Medición completa de albañileria • Hoja de cantidades en formato editable con las unidades correspondientes. • Entregables esperados 1. Planilla de cómputos métricos (.xlsx o .xls). Busco un profesional con experiencia previa en construcción de edificios residenciales que domine herramientas como Excel, Presto, Neodata o equivalentes y que pueda presentar resultados claros, listos para revisión y ajustes de ingeniería de valor. Indica tu metodología de medición y un ejemplo de trabajo similar al postular.

    $405 Average bid
    $405 Avg Bid
    24 bids

    Necesito desarrollar una solución a la medida que conecte el módulo de Compras de nuestro sistema SAE con el resto de nuestras aplicaciones internas de manufactura. Busco a alguien que ya haya trabajado con SAE y que entienda los flujos típicos de planta (planeación de materiales, recepción de insumos y control de proveedores). Alcance principal • Importar automáticamente las órdenes de compra creadas en SAE para que queden disponibles en nuestra plataforma interna. • Sincronizar el catálogo de proveedores en ambos sentidos, evitando registros duplicados y asegurando la trazabilidad de cambios. • Generar reportes de compras con métricas clave (costos, tiempos de entrega, variaciones de precio) y disponibil...

    $27149 Average bid
    $27149 Avg Bid
    104 bids
    Publicar app Blazor en VPS
    1 day left
    Verified

    Desarrollé un sistema de inventarios y última milla en Blazor con Visual Studio 2026. Ya compré el dominio y cuento con un VPS en Hostinger; lo que necesito ahora es que la aplicación quede disponible en línea de forma segura y estable. Alcance que requiero: • Configuración completa del servidor VPS (puedes recomendar Windows o Linux; no tengo preferencia). • Despliegue de la aplicación Blazor, asegurando que compile y funcione tal como en mi entorno local. • Vinculación del dominio para que la URL publique correctamente el sitio. • Implementación de seguridad básica: certificado SSL, reglas de firewall y control de acceso a usuarios. Entrego acceso al VPS, al panel de Hostinger y al repositorio...

    $135 Average bid
    $135 Avg Bid
    150 bids

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