.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 193,179 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 193,179 reviews, clients rate our .NET Developers 4.9 out of 5 stars.
Hire .NET Developers

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    33 jobs found

    Please go through the attached document PDF file for complete project requirements.

    $407 Average bid
    $407 Avg Bid
    11 bids

    We are looking for an experienced development company/team to build a cloud-based SaaS application for manufacturing operations. The system will cover: Training Management Skill-Based Manpower Planning Operator Absenteeism Tracking Multi-Shop Production Data Tracking - Key Requirements Multi-Shop Architecture Support multiple shops (departments) with isolated data Super Admin with access to all shops Shop Admin restricted to their own shop Must support scalable multi-tenant architecture Core Modules User & Role Management (RBAC) Training & Competency Tracking Skill-Based Manpower Planning (with recommendation engine) Absenteeism Tracking Shift Scheduling Daily Production Data Capture Dashboards & Analytics Intelligent Manpower Suggestion Engine System should...

    $10250 Average bid
    $10250 Avg Bid
    51 bids
    Webcam Face Capture Control
    6 days left
    Verified

    I need a reusable C# user-control for my UNO Platform WebAssembly app that can talk to any connected webcam, detect faces in real-time, and, once a face reaches a minimum pixel size that I specify, verify liveness before doing anything else. As soon as the face passes that liveness check, the control should raise an event returning the cropped face as a PNG byte array or stream. A configurable switch in the control will then decide whether that same face is pushed into a one-to-many search against a SQL Server-backed gallery. All database work can happen through a lightweight Web API you expose—keep the WASM side clean so the control remains fully client-side except for the search call. Key expectations • Runs inside UNO WebAssembly with no platform-specific tweaks needed. ...

    $1251 Average bid
    $1251 Avg Bid
    39 bids
    UWP Launcher for Kiosk App
    6 days left
    Verified

    I need a very small Universal Windows Platform (UWP) application whose sole purpose is to launch a local batch file, which in turn starts my existing Java-based desktop application. Once the finished UWP package has been provided, I will configure it as the single locked-down app in Windows 11 Assigned Access, so please also supply the Application User Model ID (AUMID). The launcher should display no user interface at all — no buttons, splash screen, status messages or other visible elements. Its only function is to execute a batch file stored locally on the device, using a path I will provide, and then hand off control to the Java application. No additional security controls, keyboard restrictions or logging are required; reliability, simplicity and a clean hand-off are the priorit...

    $269 Average bid
    $269 Avg Bid
    139 bids

    I already have a fully documented API and need a Windows desktop application that consumes it smoothly. Your task is to create a reliable, user-friendly executable that interacts with the endpoints I supply, handles all requests and responses gracefully, and displays the data in a clean interface. You are free to choose the stack you are most comfortable with—C#/.NET (WPF or WinForms), Electron, or another Windows-friendly framework—so long as the final program runs natively on current Windows versions, installs easily, and requires no extra licensing costs. Deliverables • Compiled Windows installer (.exe or .msi) • Complete, well-commented source code • Brief README covering build steps, environment, and any third-party libraries • Basic user guid...

    $132 Average bid
    $132 Avg Bid
    43 bids

    My automated trading bot runs on NinjaTrader 8 and already executes live orders, yet its current build eats up more resources than necessary and still misses the occasional signal. I want the codebase cleaned up and strengthened—no AI shortcuts, just solid C# engineering. Performance goals • Reduce CPU / memory load so the bot can stay active on multiple instruments without slowing the platform. • Tighten calculation logic and order-routing routines to boost signal accuracy and limit slippage. Functional goals • Add agreed-upon new features—think smarter risk controls or additional indicator inputs—built directly into the existing strategy class. • Rework current functions to be clearer, faster, and easier to maintain; comments and naming...

    $78 / hr Average bid
    $78 / hr Avg Bid
    29 bids
    Desktop AI Agent Development
    4 days left
    Verified

    I'm looking for an AI agent to automate tasks on a desktop application. The primary focus will be on workflow management and email processing. Key Requirements: - Integrate seamlessly with existing desktop application. - Automate workflow management tasks. - Process and manage emails efficiently. Ideal Skills and Experience: - Proficiency in AI development. - Experience with desktop application integration. - Strong background in automation tools and techniques. - Familiarity with email processing automation. Please provide examples of previous similar work.

    $71 / hr Average bid
    Local
    $71 / hr Avg Bid
    30 bids

    I need an expert with deep, hands-on experience using Microsoft’s SharePoint Migration Tool (SPMT) to troubleshoot and complete a large migration that keeps failing. ​ Environment details: ​ Source: Windows Server file server (local NTFS file share) Destination: SharePoint Online document library Total data: ~540GB Key folder: “Titan Fire Protection” with a “00-PROJECTS” folder around 400GB Large subfolders inside 00-PROJECTS (approx): 2023 – 197GB, 2025 – 124GB, 2024 – 70GB ​ Maintenance window: We are currently in a maintenance window over the weekend and need to get as much done as possible before Monday 6:00 AM (server local time). ​ The current migration job has been run several times and fails partway through. I will provide: ​ ...

    $14 / hr Average bid
    $14 / hr Avg Bid
    16 bids

    We are looking for an experienced Quantower Algo / API developer to build a custom automated trading strategy inside the Quantower platform using C# .NET. Quantower provides an open API that allows development of custom indicators and automated strategies which can be backtested, optimized, and deployed in live markets. Reference Documentation: Project Scope The selected developer will: Develop a custom trading strategy using C# .NET within Quantower. Implement: Entry and exit logic Stop-loss and take-profit logic Risk management rules Position sizing logic Integrate fully with Quantower Algo API. Enable: Strategy backtesting Strategy optimization Live auto-trading deployment Provide clean, well-documented, and maintainable code. Deliver compiled strategy files rea...

    $218 Average bid
    $218 Avg Bid
    29 bids

    I need a complete, full-stack build of a Windows-only desktop application. The project covers everything from architecting the back-end and data layer through designing an intuitive front-end UI, packaging the installer, and delivering clear documentation. I’m open to your preferred toolchain—whether you lean toward .NET (C#, WPF/WinUI), Electron with Node.js, or another modern framework—as long as you justify the choice and it fits long-term maintainability. Please send a detailed project proposal that spells out: • the stack and libraries you intend to use • high-level architecture and database strategy • milestone timeline with key deliverables • testing plans (unit, integration, and user acceptance) • post-deployment support approach ...

    $48 Average bid
    $48 Avg Bid
    19 bids

    Job Title: Microsoft Dynamics 365 Lead Developer (CE,C1,sales modules) (voice support) Duration: 8 Hours Budget: ₹70K – ₹80K Start Date: Immediate Job Description We are looking for an experienced Microsoft Dynamics 365 Lead Developer with strong expertise in Dynamics 365 Customer Engagement (CE), Customer Insights (CI), and Sales modules. The candidate will be responsible for designing, implementing, and optimizing Dynamics 365 solutions while leading the production support team and managing integrations. Key Responsibilities Design, configure, and customize Dynamics 365 CE, CI, and Sales modules based on business requirements. Collaborate with stakeholders to analyze requirements and implement scalable solutions. Lead the development and production support team for Microsoft Dynami...

    $672 Average bid
    $672 Avg Bid
    14 bids

    Hi there, I need a full-stack developer, or team, to build a multi-tenant logistics management system built on Angular 14 for the front-end, .NET Core for the API layer, and SQL Server as the data store. The one capability that must be solid from day one is Fleet management—vehicles, routes, and operational data must stay completely segregated per tenant while sharing the same codebase and database. Everything has to scale cleanly as new companies sign up, so tenant isolation, role-based access, and configurable settings are essential parts of the architecture. Core scope • Set up the tenant-aware user authentication/authorization flow (JWT or similar) • Design the SQL Server schema with row-level or schema-level isolation to keep each tenant’s fleet data separate ...

    $111 Average bid
    $111 Avg Bid
    24 bids

    I have several Windows executables and accompanying .dll files that were originally written in C, but the source code has been lost. I will supply only those compiled binaries; no partial code or documentation is available. Your task is to work through the binaries, reconstruct human-readable, buildable C source, and document any non-obvious logic you uncover along the way. I expect the recovered code to compile on a current GCC/Clang toolchain, reproduce the original behaviour, and be organised into clear modules with meaningful comments. Feel free to use IDA Pro, Ghidra, Hopper, Radare2, or any other reversing tools you are comfortable with—just note your workflow so I can maintain the codebase afterward. Deliverables • Complete C source tree that builds cleanly (no warn...

    $3173 Average bid
    $3173 Avg Bid
    70 bids

    I run a growing chain of bakeries and now need a single, cohesive system that lets every outlet bill customers, track stock and feed all figures back to a central server. Compatibility • The point-of-sale itself must be a Windows desktop application that works offline when needed, then syncs continuously with a web-based server for consolidated data and remote management. Core scope • Billing & Sales tracking – quick item lookup, discount handling and GST-ready printable / digital receipts. • Inventory – real-time stock level tracking at each outlet, automatic deduction when a sale is made, and a central view so I can reorder in time. • Reporting – daily, weekly and monthly sales reports broken down by outlet, item and GST slab. Export to...

    $495 Average bid
    $495 Avg Bid
    40 bids

    I'm looking for an experienced SQL Server professional to provide robust application support for our desktop software. Key requirements: - Primary focus on data backup and recovery. - Ensure data integrity and availability. Ideal skills and experience: - Strong background in SQL Server management. - Expertise in data backup and recovery processes. - Experience with desktop application support. Please include relevant experience in your bids.

    $56 / hr Average bid
    $56 / hr Avg Bid
    90 bids

    Job Description: We are seeking a Senior Dotnet Developer with excellent English communication skills to join our remote team. This role is open to professionals based anywhere in the Americas, excluding the United States. Key Responsibilities: -Develop and maintain scalable applications using Dotnet technologies. -Collaborate effectively with global teams using clear English communication. -Participate in design discussions, code reviews, and problem-solving sessions. -Write clean, efficient, and maintainable code following best practices. Requirements: -Excellent English communication skills are mandatory (written and spoken). -Proven experience as a Dotnet Developer (C#, Dotnet Core, ASP.NET). -Experience with databases (SQL Server, MySQL, or similar). -Familiarity with cloud platform...

    $1603 Average bid
    $1603 Avg Bid
    124 bids

    I’m commissioning a robust, desktop-based Hospital Management System that seamlessly ties into a online licence/CRM service for activation control. Core scope • Patient Management – full electronic medical records, admission/discharge workflow and a complete patient history timeline stored securely. • Appointment Scheduling – doctors see a shared availability calendar, while patients receive automated e-mail/SMS reminders generated by the system. • Billing & Invoicing – charge capture, multi-payer billing and printable invoices with basic reporting. Licence/CRM requirement The desktop client must verify its licence on first run and at set intervals through a lightweight web API. From a browser dashboard I need to create, suspend or r...

    $383 Average bid
    $383 Avg Bid
    39 bids

    I’m building a C# web application in ASP.NET Core and I’m looking for an experienced developer who can jump in and accelerate the remaining work. The project centres on three pillars: solid user authentication, clear and responsive data visualisation, and reliable third-party API integration. Where I am now: the solution skeleton and basic routing are in place, but the heavy lifting on identity management, charting dashboards, and the external API logic still has to be completed and wired together cleanly. What I need from you: • Implement secure registration, login, and role-based access using ASP.NET Core Identity (or another approach you recommend, as long as it stays within the framework). • Build interactive charts/graphs that pull data from my existing E...

    $48 Average bid
    $48 Avg Bid
    96 bids

    We are building a large-scale membership and operations management platform designed to support an international organization with multiple offices in different countries. The system will allow users to register online, apply for membership, participate in events and activities, communicate with local offices, and manage their involvement in the organization. The platform must support thousands of members, multiple offices, and structured management roles while maintaining high security and scalability. This is not a simple CRUD website — it is a full operational platform. We are looking for an experienced .NET / Azure architect or senior developer to help design and potentially build the system. Architecture Direction The system will start as a Modular Monolith (v1...

    $12764 Average bid
    $12764 Avg Bid
    181 bids

    Project Summary – SharePoint-based quote generation system with Copilot Studio Project Goal: To develop an automated quote generation system where: • incoming customer requests are processed by a **Copilot Agent** built into SharePoint, • works from the appropriate Excel price list, • fills in a Word template, • finally generates a PDF quote and saves it to the appropriate SharePoint folder. The system is built entirely on the existing Microsoft 365 infrastructure. System structure 1) SharePoint content creation The project manages two sales areas: • Event sales (100 offers/month) • Packaged finished product sales (100 offers/month) Both areas have their own SharePoint folder, which contains: • previous offers, templates • valid Ex...

    $452 Average bid
    $452 Avg Bid
    23 bids

    I need a turnkey, white-label credit-dispute solution that I can rebrand completely as my own. The core engine must follow Metro 2 standards while giving me full control over logos, colors, copy, and domain so clients interact only with my company identity. Essential functions • Client management – create, track, and archive individual profiles, documents, and dispute status in one place • Detailed credit-report analysis – import the three-bureau reports, highlight negative items automatically, and show score impact projections in clear dashboards • Automated dispute generation – produce Metro 2-compliant letters and e-file packages from template logic, ready for batch or single submission Platform coverage I want a single code-base that delivers ...

    $2967 Average bid
    $2967 Avg Bid
    228 bids

    We are looking for an experienced GraphQL Engineer with strong skills in C# .NET and Microsoft Azure to help design and build scalable GraphQL APIs for distributed systems. The main focus of this role is GraphQL API ownership, backend development, and Azure cloud operations. Experience with Kafka or event-driven systems is a plus but not required. Responsibilities Design, develop, and maintain GraphQL APIs Define and evolve schemas, resolvers, and data models Integrate multiple backend services into a unified GraphQL layer Optimize API performance (N+1, batching, caching) Build backend services using C# .NET Deploy and operate applications on Microsoft Azure Collaborate with frontend teams consuming the API Requirements 5+ years of software engineering experience Strong experie...

    $695 Average bid
    $695 Avg Bid
    122 bids
    C# Console IMAP Service
    1 day left
    Verified

    For more details please refer the attached PDF

    $348 Average bid
    $348 Avg Bid
    31 bids

    need a senior mobile engineer, AI engineer, and product architect. Your task is to design and build a production-ready mobile application The goal is to create a subscription-based mobile app that helps users keep their plants alive using AI-powered diagnosis, care scheduling, and growth tracking.

    $235 Average bid
    $235 Avg Bid
    80 bids

    I'm looking for an experienced developer to create a Windows-based desktop application. The primary function of this application will be to serve as a user interface. Key Requirements: - The application must be intuitive and user-friendly. - It should be developed specifically for the Windows operating system. Ideal Skills and Experience: - Proficiency in Windows desktop application development. - Strong UI/UX design skills. - Experience with relevant programming languages (e.g., C#, .NET). - Ability to work independently and deliver on time. Please provide examples of similar projects you have completed.

    $7049 Average bid
    $7049 Avg Bid
    135 bids

    I’m spending far too much time re-typing purchase vouchers into Tally when everything is already organised in Excel. I need a small utility that reads those spreadsheets and posts each row as a purchase entry in my Tally company, with all taxes, supplier details and inventory lines carried over exactly as they appear in the sheet. You are free to choose the most efficient route—Tally XML import, ODBC, TDL, or a Python/.NET bridge—so long as the final result is a one-click (or near one-click) process that any non-technical staff member can run on a Windows machine. Deliverables • Executable tool or script with a simple UI or clear command-line instructions • Mapping configuration so I can point new spreadsheet layouts to the correct Tally fields without cod...

    $49 Average bid
    $49 Avg Bid
    8 bids

    • Description The objective is to create a prototype that sends our XML string via AS4 to a destination URL. You can start with <test>dummy</test> for now, but we will test with real xml. You will need to sign with the internal private key certificate and encrypt with the external public key certificate. The other side will decrypt with their private key certificate and verify our signature with our public key certificate. We will give you the certificates. You will then listen to our URL. They will send an async message 10-15 minutes later. We will give you access to our VPS, so the DNS will be routed to the VPS. You will need to verify their signature with their public key and decrypt the message with our private key. Success metrics are that the message is successfull...

    $247 Average bid
    $247 Avg Bid
    108 bids

    EXCEL RELATED TASK...IN SIMPLE LANGUAGE EK EXE DEVELOP KRNI H APKO AI SE JISME MAX 10 MIN LGENGE JO ME APKO FORMAT FILE DUNGA USKO APKO ERP_CONVERTED_2 WALE FORMAT ME KRNA H ..FIR APKO USME DATE WALE COLUM ME IS TARH KRNA H JO DISBURSEMENT DATE H SAME ACCOUNTS KI WO EK SATH OLDEST TO NEWEST AAE AND COLL KI B ISI TRAH SE AAE FIR APKO ISKO UTILITIY WITH DROPDOWN WALE FORMAT ME VITRAN VASULI KI SHEET WALE FORMAT ME LEKR AANA H OR USME ACC NO WISE AARANGE KRNA H OR SAME ACCOUNT KI JHA DISURSMENT DATE KI ROW H OR COLL YANI KI VITRAN DATE USKE BAAD KI YA SAME H USI ROW ME ARRANGE KRNA H ...EXE ME GUI DE DO OR 2 SE 3 STEP ME KR DO MAXIMUM BUDGET 2000 RS H OR MUJE30 MIN TO 1 HOOUR ME DE DO

    $18 Average bid
    $18 Avg Bid
    7 bids

    I have four Excel workbooks that I now need housed in an existing MS Access database. None of the sheets are relational at the moment, so the job is a straight import and structure clean-up rather than designing complex links. Here’s what I need from you: • Import 4 existing Excel Files into 4 tables in an existing MS Access DB (.ACCB) • Add a few basic queries so I can filter, sort and export the data quickly. • Delete bad data and duplicates The project is to be done in .net with WPF user interface. Once complete, send me the .accdb file and the brief how-to notes—that’s it. If something in the data suggests a better structure, feel free to flag it before you proceed; otherwise, a clean one-to-one migration is all I’m after.

    $586 Average bid
    $586 Avg Bid
    90 bids

    We have a legacy Windows desktop application built on .NET Framework 4 that captures video from a USB webcam using and a custom wrapper WebCam_Capture.dll. The program works correctly on some machines but fails to recognize our Veho USB camera on others, even though the camera works in modern apps (Windows Camera app, browsers, online webcam testers). We need a freelancer to analyze, patch, and improve the camera handling logic so that the software consistently recognizes the camera across all machines. ⸻ Key Requirements / Skills: • Strong experience with .NET Framework 2.0–4.x and C# • Experience with DirectShow / video capture pipelines • Comfortable with Windows desktop apps (WinForms/WPF) • Experience with reverse engineering / decompiling .NET assem...

    $3709 Average bid
    $3709 Avg Bid
    130 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]'

    $1671 Average bid
    $1671 Avg Bid
    26 bids

    Ζητείται Προγραμματιστής VISUAL BASIC (Εξ Αποστάσεως – Remote) συντήρηση εφαρμογÏŽν Υλοποίηση νέων λειτουργιÏŽν Επίλυση τεχνικÏŽν προβλημάτων

    $616 Average bid
    $616 Avg Bid
    29 bids

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