C# Programming Jobs

C# Programming is a widely-used, versatile, and powerful programming language that offers a range of possibilities for developing software applications. C# Programmers can create custom software solutions for clients, ranging from desktop and mobile apps to web-based applications and games. By hiring an expert C# Programmer on Freelancer.com, clients can take their projects to new levels of efficiency, interactivity, and performance. Here's some projects that our expert C# Programmers made real:

  • Database synchronization tools for central server management
  • Augmented Reality integration for mobile and desktop applications
  • Card game development in Flutter
  • Setting up secure VPN connections via BlueStacks5 emulator
  • NinjaTrader 8 future trading strategy development
  • Windows application creation for various business needs
  • Web development using C# for robust web-based applications
  • Desktop software solutions for wholesale business goods accounting
  • Object Oriented Programming with Hash Dictionary in C#
  • Fuzz testing harness creation using AFL (American Fuzzy Lop) for Windows Services

All of these projects and many more became a reality thanks to the talented C# Programmers found on Freelancer.com. We've got a vast community of experienced developers just waiting to help bring your ideas to life. With our simple-to-use platform, getting started has never been easier - simply post your project details, and our freelancers will bid to offer you their services.

The possibilities are endless when you invite the right talent into your project. Don't wait any longer - post your own project today and hire an expert C# Programmer on Freelancer.com. Your next great idea is just waiting to be brought to life.

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    206 jobs found, pricing in SGD

    hello we are looking for accounting software, where we put our logo and name, and resell, has to be complete accounting software, invoices, vendor, customer, report, etc

    $722 (Avg Bid)
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    46 bids

    I need the asp.net coder for multiple jobs. Details will be discussed.

    $9 - $71
    Sealed
    $9 - $71
    11 bids

    I need the asp.net coder for multiple jobs. Details will be discussed.

    $9 - $71
    Sealed
    $9 - $71
    4 bids

    I need an example with source code to preview and capture photos and videos from a camera connected to the computer (for example, a web cam). It must be in .NET 6 (not .NET Framework or other versions of .NET or .NET Core), as a WPF Desktop App. It cannot depend on the Windows built-in Camera app. Developer must be in the U.S. and must have authorization to work in the U.S. Thank you!

    $709 (Avg Bid)
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    I am looking to have a software program created to check the availability of appointment schedules. The software needs to be windows based / web based, with individual logins for access for different accounts. This software should check availability for appointment slot available for book in. the target system is web based and it has different location for appointment slot. we will then specified the location we need (excample:- location A, B or C, that selected from the option / dropdown box from the website), time we need (should be a range of time, example:- 2pm to 4pm slot). we should then make the booking based on that automatically.

    $456 (Avg Bid)
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    UPI payment integration in .net core6 with razor pages

    $125 (Avg Bid)
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    3 bids
    C# .NET - Minimal API setup 6 days left
    VERIFIED

    C# .NET - Minimal API setup I am in need of a developer who can help me set up an API that retrieves text data. The purpose of the API is data retrieval, and I require user authentication for security purposes. The ideal candidate will have experience with C# .NET and API development. Specific requirements for the project include: - Setting up a minimal API that retrieves text data - Implementing user authentication for security purposes - Ensuring the API is compatible with C# .NET - Providing clear documentation for the API setup process If you have experience with C# .NET and API development, please submit a proposal for this project.

    $23 / hr (Avg Bid)
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    Create EXE file 6 days left
    VERIFIED

    Hi, I have a PPAM and POTX file. I want you to create an EXE file that will install this PPAM file and also load the POTX file as the default theme in the PowerPoint. I want you to build this using Visual Studio and the deliverable will be the full solution folder.

    $19 / hr (Avg Bid)
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    8 bids

    I am looking for a skilled developer to create a web portal that will analyze sales data in real-time. The portal will need to have the following features: - Real-time data updates - Data visualization - Customizable reports The portal will only need to be accessed by less than 10 users. The ideal candidate should have experience in web development and data analysis. They should also have knowledge of data visualization techniques and the ability to create custom reports.

    $3183 (Avg Bid)
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    I am looking for a skilled developer to build an API for my DVCrypt application using C#. The API should have specific features and functionalities as per my requirements. Additionally, I would like the API to implement an API Key authentication method. Ideal candidates should have experience in C# programming and API development. and the connection to SERVER through the Windows Sockets interface. More details will shared with candidates

    $371 (Avg Bid)
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    19 bids
    Axis ANPR app api integration 6 days left
    VERIFIED

    I am seeking a freelancer who can integrate the Axis ANPR app API with my Axis Q**** camera to enable access control at one location. The ideal candidate should have experience with Axis camera models and knowledge of ANPR app integration. The main purpose of this integration is to enable access control, and the project will only require integration at one location. I am looking to integrate to Paxton Axis database. Either by fetching number plate data or fetching.

    $842 (Avg Bid)
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    45 bids

    I have an application that (on some computers), the PNG background, is cut off in some parts, and the windows wallpaper is seen. Why could this problem be? What is it related to? To those interested, who demonstrate knowledge, I will send a screenshot.

    $26 (Avg Bid)
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    7 bids

    I am looking for a developer to create an application using Selenium to automate web testing . The ideal candidate should have experience in using Selenium with C#. The target website for the application is any website. The project requires proficiency in C# programming language and knowledge of Selenium. more details will be sent in chat.

    $222 (Avg Bid)
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    23 bids

    Are you a talented and experienced app developer looking for an exciting project? We have an opportunity that might be perfect for you! We are seeking skilled freelancers to bid on building a mobile application focused on personal safety while traveling alone. This app aims to empower individuals to travel home safely after a night out, with features designed to enhance personal security and foster community connections. Key Features: User registration with ID verification and criminal record checks. Geo-location services for safe route suggestions. Online presence display to connect with others. Text-based communication based on shared interests. Premium services offering video chat or calling. Ratings and feedback system to build a trustworthy community. Robust safety features, ...

    $7264 (Avg Bid)
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    I am looking for a skilled freelancer to assist me with a personal project involving flashing blockchain transactions. The ideal candidate should have experience in working with blockchain technology and be able to provide past work examples showcasing their skills. The project needs to be completed ASAP, so prompt delivery is essential. Please contact for more details, the payment term would be one time

    $372 (Avg Bid)
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    Hello, talented Freelancers! We are currently seeking a Unity expert with extensive knowledge of both the Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP) for a unique project. The task at hand is to convert a Unity package, which is currently only compatible with URP, into a version that works seamlessly with HDRP. This is an intricate task that requires a deep understanding of Unity's rendering pipelines, shader conversion, and possibly script adjustments. Ideal candidates for this project should be able to demonstrate: Strong proficiency with Unity and its rendering pipelines - URP and HDRP Previous experience in converting Unity packages from URP to HDRP Knowledge of UHFPS - Ultimate Horror FPS KIT -> or similar FPS packages High a...

    $250 (Avg Bid)
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    I am looking for a developer to create an application using Selenium to automate web testing . The ideal candidate should have experience in using Selenium with C#. The target website for the application is any website. The project requires proficiency in C# programming language and knowledge of Selenium. more details will be sent in chat.

    $217 (Avg Bid)
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    39 bids

    I ran Chrome using ChromeDevtoolsProtocol. There's a pop-up window, and I need to type text in it, but I can't. It is different from cellinium or web driver or chromium I'm looking for someone who can type in the pop-up window.

    $112 (Avg Bid)
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    5 bids

    I ran Chrome using ChromeDevtoolsProtocol. There's a pop-up window, and I need to type text in it, but I can't. It is different from cellinium or web driver or chromium I'm looking for someone who can type in the pop-up window.

    $215 (Avg Bid)
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    19 bids

    We are a company that does rfid nfc authentication. We are using php and azure servers to run the website. I need someone who can maintain, repair and develop new ideas when the company needs it.

    $38 / hr (Avg Bid)
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    Experienced C# developer 6 days left
    VERIFIED

    We are looking for an experienced developer with very good knowledge of C# and .NET. In addition, very good knowledge of MS SQL is required. Desktop and web apps are to be programmed. Blazor knowledge is desirable. The working hours are weekly from Monday to Friday inclusive, 40 hours per week. There are several projects in a row, which is why a long-term working relationship is desired. As a condition of employment, an online test of up to 80 minutes must be completed in advance to check suitability.

    $23 / hr (Avg Bid)
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    I need an API database to sell digital keys products from one place on 4 platforms(G2A, Gamivo ,Kinguin,Eneba) via API.

    $1607 (Avg Bid)
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    We have a finished game with a quest system. And you need to add some puzzle missions like pressing a certain combination of tiles to open a door etc.

    $222 (Avg Bid)
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    25 bids
    Windows Yellow Page Extractor 6 days left
    VERIFIED

    I'm looking for someone to create me a Windows app that can scrape data from The information collected should be: Business Name Business Category Business Phone Business Website Business Fax Business Address Business City Business State Business Country Business Postal Code Business Email – if email available on website for particular Business Website Business Map Link Business Detail Link It should also support proxies and have a licensing system where a user needs to enter a purchase code and email to activate the software.

    $253 (Avg Bid)
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    34 bids

    I am seeking a C# MVC developer to add specific features to my web app. The following features need to be added as soon as possible: Please see the attached pdf before quotation

    $284 (Avg Bid)
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    62 bids
    MSI EXE INSTALL 6 days left

    I am looking for someone to create an MSI EXE installer for a specific software that I need installed on Windows operating systems. The software is not Microsoft Office or Adobe Creative Suite, but another program that I will specify. I require the installer to have custom settings for installation configurations. Ideal skills for this project would include experience in creating MSI EXE installers and familiarity with Windows operating systems.

    $23 / hr (Avg Bid)
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    1) Searches for a certain patterned text in a pdf -- <<<pages x to y>>> 2) Create a Named destination in the Page where the text is found. 3) Create a named destination to the first page in the Source Doc (in this example, it will be page 4 – That is the 3 pages in the summary, Plus the first-page number referenced in the page <<<page 1to 4 >>>) 4) Create a link from the found text <<<pages x to y>>> to the Named Destination 5) Overlay a line of text at the top(0.5” from the top and 1” from the left of the page) of pages 4, 5, 6, and 7 with the text “Back to Summary”. 6) Link this text back to the page of the found text <<<page 1to 4 >>> page1 of the “final merged” file&n...

    $1537 (Avg Bid)
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    I am looking for a skilled C# developer to create a Windows Form Application that will interface with an IoT hardware controller. The purpose of the application is to manage data input and output from the controller, as well as provide a user-friendly interface for controlling the hardware. Ideal Skills and Experience: - Proficiency in C# and Windows Form Application development - Experience with IoT hardware controllers, specifically Arduinos, Rabberry Pi and or STM32 controllers - Knowledge of data management and automation in software development The project will require the developer to work closely with our team to design the solution for the specific requirements for the hardware and software components that we have finalized already. If you are familiar with IoT hardware (mostly ...

    $131 (Avg Bid)
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    10 bids
    C# Desktop Game -- 2 6 days left
    VERIFIED

    C# Desktop Game Development I am looking for a developer to create a desktop game using C#. 1. Game will be 2D, not 3D, Use Monogame, Take note: "Do not use unity or godot engines"

    $15 / hr (Avg Bid)
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    I am seeking a game developer to create a #C desktop game for me. C# Desktop Game 1. Game will be 3D, not 2D, Use Monogame, Take note: "Do not use unity or godot engines" .net for start menu of the game 3. Where will be places start game button, exit game button and settings button with the background 4. Monogame .net is for game physics such as collisions and shooting 5. The map is actually in png format and should be converted to tiled map to usi it in monogame

    $12 / hr (Avg Bid)
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    10 bids

    I am looking for a skilled software developer to complete a redevelopment of my current software. The software is over 30 years old and was developed using Clarion programming language and the primary function is job costing and inventory management. We have over 700 users currently running on our software, and all of them needs to be moved over to the cloud software. For the cloud-based version, I am looking for the following desired features: - Scalability to accommodate future growth - Data security to ensure sensitive information is protected - Real-time collaboration for efficient teamwork - Real-time chats for clients to receive support from our staff. - Automatic backups needs to run on the different data sets as specified by clients. - Needs online and offline capabilities, as ...

    $21318 (Avg Bid)
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    68 bids

    BE CAREFUL THAT THE MAIN PART OF THIS PROJECT IS TO MONITOR AND CHECK THE SYSTEM BEHAVIOR SO IF YOU HAVE THE VXWORK (WORKBENCH) SOFTWARE THAT HAS A LICENSE, PLACE A BID. OTHERWISE YOU CAN NOT SEE THE SYSTEM VIEWER PART IF YOU DO NOT HAVE THE VXWORK WITH LICENSE. AT THE END, YOU HAVE TO GIVE ME A REPOET FILE (PDF AND WORD) AND THE CODE FILES AS WELL Programming Language: C Target Platform: Windows SOFTWARE: VXWORK Main Purpose: Monitoring the behavior of system viewer Skills/Experience Needed: C Programming - Strong knowledge of C programming language - Experience in developing real-time applications with periodic tasks - Familiarity with the Windows operating system - Understanding of monitoring systems and their requirements - Ability to optimize performance and minimize latency in...

    $247 (Avg Bid)
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    Objective: The objective of this project is to revamp and re-develop the existing In-Plant Management System (IPM). The current application, developed in Visual Basic with MS Access as the backend database support, will serve as a reference for the new development. Dispense Program and Management System: The primary focus of this project is the development of a Dispense Program and Management System software. The new software should function identically to the existing VB program. It will provide operators with a user-friendly interface to accurately mix chemicals, resulting in the production of a specific amount of color. Performance and Technology Upgrade: The new system will be built using the latest technologies and architecture to enhance performance and scalability. The foll...

    $3533 (Avg Bid)
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    I am looking to create a restaurant management system for a new enterprise. This system needs to have the capacity to allow tables to have the order facility from our customers and integrate customer relationship management features to handle customer data. To maximize efficiency in our startup, we are requiring payment processing and delivery services to be integrated into this system as well. The main purpose of the system is to ensure that we can easily manage our customer database to provide our customers with the best possible service. Furthermore, the ability to offer table ordering services will help us develop further as a business. Finally, the integrations that are required need to provide us with smooth and efficient processing of customers' payments and delivery services...

    $477 (Avg Bid)
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    I am looking for a skilled programmer with experience in C++ to work on my electronic programming project. The project should be written in C++. The ideal freelancer should have experience in similar projects and must be able to demonstrate this in their application. The deadline for the project is more than a month, so it is important that the freelancer is able to work within this timeframe. Please include your experience in your proposal. Thank you.

    $904 (Avg Bid)
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    15 bids
    Asp.net MVC developer -- 5 6 days left
    VERIFIED

    I am looking for an experienced Asp.net MVC developer who can fix functionality issues on my existing MVC Application long term support. The project scope involves fixing bugs on an existing Application. Specifically, the bugs are related to functionality issues. The ideal candidate should have experience in Asp.net MVC development and be familiar with fixing MVC Application functionality issues. The candidate should be able to complete the task within the given deadline. price is 200 INR

    $11 / hr (Avg Bid)
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    Oscillator AFL 6 days left
    VERIFIED

    I am looking for a skilled freelancer to develop an RMO Oscillator AFL for my trading platform. The oscillator will be used on a minute time frame to provide accurate trading signals. The ideal candidate should have experience in developing trading indicators and be familiar with Amibroker. In addition to the basic functionality of the oscillator, I require alerts or notifications to be integrated so that I am notified of any trading opportunities. If you have experience in developing customizable parameters and integrating with trading platforms, it would be an added advantage. Overall, I am looking for a reliable and experienced freelancer who can deliver a high-quality RMO Oscillator AFL that meets my requirements.

    $222 (Avg Bid)
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    We need somebody who is an expert in C#/AJAX. Our Application is throwing access error while processing data of more than 5 facilities on Production server, Its working fine on test environment. we need somebody who can find the solution to this issue.

    $918 (Avg Bid)
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    Registration and Authentication: Allow users to create accounts and log in securely. Creation and Management: Provide a user-friendly interface for creating and managing tasks. Include fields for task title, description, due date, priority level, and categorization. Tracking and Progress: Display a dashboard or task list showing pending tasks, completed tasks, and upcoming deadlines. Enable users to mark tasks as completed and track their progress. and Sharing: Allow users to collaborate by assigning tasks or sharing task lists with team members. Enable features such as comments, attachments, or subtasks to enhance collaboration. and Notifications: Implement a reminder system to notify users of approaching deadlines or task updates. Provide options for users to choose their ...

    $18 / hr (Avg Bid)
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    I need an online clinic system designed using C# ASP.NET WebAPI, Entity Framework, and ASP.NET MVC. It should have features for patient records management. I have a specific design in mind, so the programmer should be able to understand my requirements and come up with a satisfactory design. The system should also have 3-4 user roles: one for the admin, one for the patient, one for the doctor, and one for the receptionist. All these user roles should have their own specified privileges and functions. I’m looking for a programmer who is experienced in C# ASP.NET WebAPI, Entity Framework, and ASP.NET MVC to create this system for me.

    $355 (Avg Bid)
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    Hi, I would like created a Java or .NET C# tcp socket server service to accept an incoming connection from a remote GPS device that uses CCE protocol, then translate the binary/hex data into a mqtt message as a json object containing string/int key value pairs. Please ask any question, more details will be given to the right person. Thank you, Chris

    $268 (Avg Bid)
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    I am in need of a skilled C++ developer to fix a compile error on my code as soon as possible. I have tried some solutions but have not been successful. The ideal candidate should have experience in C++ programming and troubleshooting compile errors. This project requires attention to detail and the ability to work efficiently under a tight deadline.

    $195 (Avg Bid)
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    48 bids

    I am looking for a skilled developer to create a hotel management system using c# asp.net mvc, , entity framework, and database (ssms). The primary goal of the system is to manage reservations and bookings, track guest information and preferences, and manage staff and payroll. Specifically, I need someone to handle the task of Logging in admin adding room details(Room number, Room Type, Room description, Room charges) , Delete room details, Modify room details, Add food menu items(Menu Id, Menu types, Menu Description, Price) , Delete food menu items, Modify food menu items, Approve/cancel room booking, Approve/Cancel food order, Logout in the admin panel and in User panel View hotel details, Room booking(Booking id, room number, room type, duration, room description, room charges ) , Plac...

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    I am in need of a skilled .Net Core C# developer to update my ERP system asynchronously. Specifically, I need to process orders in real-time. The ideal candidate will have experience with ERP systems and be proficient in .Net Core C#. The desired frequency of updates is real-time.

    $11 / hr (Avg Bid)
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    C# ASP.NET Web Developer 5 days left
    VERIFIED

    Need long-term C# developer for multiple websites / projects operated by our company. Must be VERY experienced with C# and ASP.NET as we have dozens of projects and a large base of existing code. Knowledge of threading and Windows Services is also very helpful so tell us if you have this experience. Additionally, we want someone who is very loyal and trustworthy who wants a stable, full-time, long-term project. If you want stability and long-term work for one client without having to jump from job to job, this is a great opportunity. Remote work from home is acceptable if your power, internet and hardware is satisfactory. Minimum 5 years C# / ASP.NET experience REQUIRED. Ability to write advanced T-SQL queries is REQUIRED. AGENCIES: If you are applying from any agency, write &q...

    $19 / hr (Avg Bid)
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    I have assignment. There will be no admin. Only front end. user will select the product and add to cart. Tables, i created in script. This project will be in MS visual studio MVC web app and also in Flutter. There will be no design, and no admin or report. Please see attachment for detail

    $133 (Avg Bid)
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    We would like to develop a program to automatically build a chronology from a large set of emails (say, 1000+). We typically receive a PST file of emails from our clients. We regularly work with an electronic discovery platform called Goldfynch to convert those emails into an indexed set of PDF documents. As part of that indexed set, we have a CSV file listing each email and attachment, and a corresponding text file containing the full text of the email (including the email header and body). We would like to take that a step further and develop a program that automatically builds a chronology in Excel (or a CSV file) from the body text from that set of emails. For example, if John Smith sent an email to Adam Shore on May 15, 2023 at 2:33 PM writing: "Sure, pizza works", the ou...

    $529 (Avg Bid)
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    I'm looking to develop a web kiosk software that will enable customers to log in securely. The login system will use username and password authentication, and also include a password recovery option for added security measures. The primary purpose of the kiosk software is for customer account management, so customers can easily manage their accounts on the go. It will provide users a simple and easy way to log in and manage their accounts quickly and efficiently.

    $462 (Avg Bid)
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    Hello, please apply after reading it, bot applies will be reported and please do not apply if you dont have reviews. I need a native software, "exe file" will be built to merge hundereds of photos and put them in an order with those steps ; a- on first screen there will be inputs as rows, cols, and i will upload 600 or 700 photos on it, and exe will show me those photos in selected aspect ratio b-my 600/700 or more photos will be combined from its "refference lines" all images have refference points to connect each other, some will be aimed some will be straight but we have to make a "true photo" from many photos. Those many photos are a part of 1 product. That shows us errors on the produced product. c- after the big image (combined 600 or 700 or more ima...

    $5483 (Avg Bid)
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