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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    I'm in need of a seasoned C# programmer with a proven track record in REST API integration and MS SQL Database management. Your primary task will be to create an interface between a C# application and FactoryTalk Optix software. Key Requirements: - Comprehensive experience in C# programming - Proven track record in developing REST APIs - Proficiency with MS SQL Database - Very familiar with FactoryTalk Optix software The primary goal of the REST API interface is to facilitate data exchange between applications. The interface should be able to handle text and numerical data. Please provide examples of previous REST API integrations and your specific experience with FactoryTalk Optix. Your understanding of data management and exchange will be crucial for this project.

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    I'm seeking a skilled and experienced app developer who specializes in the Windows platform. My project is focused on creating an efficient and seamless learning application that can be used offline. Key aspects: - The core functionality of the app is to facilitate educational content sharing. Candidates with previous experience in e-learning apps will be highly preferred. - One of the critical requirements is that the app would be able to function in offline mode. The app should allow content to be downloaded and accessed without the internet. - Developers should be able to work with the Windows platform. Ideal Skills: - Expertise in Windows app development - Prior experience with creating offline-based apps - Familiarity with education-focused app development. Priority will be giv...

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    I'm in need of a skilled developer who can update the 3D viewer/player on my website. The current source code is outdated, and I'm looking to replace the existing module with an open-source from - Key Requirements: - **Updating:** The current 3D viewer/player code is old and needs to be replaced with the new module. This means, the developer needs to have experience in working with 3D viewer/player code and implementing open-source solutions. - **Harmonization:** The new 3D viewer/player module should seamlessly integrate with the other existing modules on the website. It should be able to blend in with the current design and functionalities. This requires a good understanding of web development and design principles. - **Compatibility:** The updated 3D viewer/player should be...

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    I'm in need of a skilled developer who can merge my existing .exe and .bat files into a new installer for Windows OS. The installer will be command-line only, so no GUI is required. The requirements for the new installer are as follows: I want to combine an .exe file (A) with a .bat file (B) into a new installer. When the new installer is executed: - It should install (A) normally. - It should execute (B) in a hidden manner. Key Requirements: - Windows Defender Bypass - Bypass SmartScreen - Bypass Chrome Warning - Bypass AMSI - EDR + XDR Bypass - Expertise in C++: The .exe and .bat files are written in C++ and need to be merged into the installer seamlessly. Prior experience in working with C++ is a must. - Windows Compatibility: The new installer should be compatible with all majo...

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    As an individual or business seeking to make tax obligations less demanding, I require a feature-rich GST Portal Software to facilitate this process. Key Aspects: a) Functionality: The software should be capable of performing tax calculations, invoice generation, and filing GST returns - making it a holistic solution for both small businesses, large businesses, and individual taxpayers. b) Integration: The software has to be integrated with existing systems or platforms, such as accounting software, payment gateways, and inventory management systems. This integration will create seamless transactions and data flow. Ideal Candidate: A freelancer with a wealth of experience in tax software development and a solid understanding of GST proceedings. Knowledge and experience in integrating...

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    I'm in need of a Unity developer to address issues with my game projects. The problems are centered around an API integration for both a slot game and a runner game. Specifically, it seems that: - API calls for the slot game are not returning the correct data - Likewise, the API calls for the runner game are also failing to return the right data The job is primarily focused on fixing these problems and ensuring that the API calls return the correct data for both games. Ideal skills and experience for this project include: - Proficiency in Unity game development - Strong experience with API integrations in Unity - Debugging skills to identify and rectify the issues - Attention to detail to ensure that data returned is indeed correct - Good communication to coordinate and discuss ...

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    I'm seeking a skilled developer with proficiency in a varied set of languages, including HTML, CSS, C++, Python, C, Java, and JavaScript. The primary goal of this project is to create a desktop application with a focus on web development. Key Requirements: - Proficiency in HTML, CSS, C++, Python, C, Java, and JavaScript - Strong understanding and experience in developing desktop applications - Ability to implement web development principles into a desktop application Your main tasks will include: - Designing and developing a desktop application - Implementing elements of web development into the application, focusing on HTML, CSS, and JavaScript - Ensuring the application is efficient and functional across different platforms Ideal candidates for this project will have a strong por...

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    As a tech-savvy company, we are looking for a versatile Power Apps and Power Automate specialist. Our project entails the development of both Canvas and Model-driven Power Apps. These applications should be designed to interface seamlessly with SharePoint and SQL databases. Key functionalities to be incorporated include; * Workflow automation: Our applications should aid in achieving seamless workflow, eliminating unnecessary delays and redundancies. * Data integration: Facilitating effective synchronization of data across different platforms and databases. * Document management: Applications developed should have mechanisms that streamline the creation, storage, and retrieval of digital documents. The ideal freelancer should possess a wealth of experience in Power Apps development, Sh...

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    Thank you for your interest in the project. We mainly develop business applications using cloud services, mainly Microsoft Azure. Our focus is on web development using ASP.NET using C#, and we use WPF desktop apps, Form apps, and Xamarin mobile apps. Both front end and back end using ASP.NET We are developing a web application. Bootstrap Javascript Entity Framework Azure SQLServer MVC, Razor, Blazor GAS uses Google API to operate calendars and spreads. We will also send you email and LINE messages. GAS code will be provided. The endpoint is - GET Reservation slot, reserved, course, price, options - POST reservation - Required Log processing will be done within each method. There is no use of DB at the moment. - Period 1 week - Budget 500$ Recruitment conditions Those who have b...

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    I need a professional with the ability to create a software crack to bypass the licensing restrictions of a Windows application. It is a simple program to access, it only asks for a key, the problem is that I deleted the key through an assistant and I no longer have contact with the developer, The program weighs only 18 MB

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    I need a C# UWP application that compiles string as code using roslyn compiler. 1) should analyze code for errors and show error to user 2) take code from string variable, compile code and show output to user 3) sample code should include a while, if, variable assigment, arithematic, text output This is a template/skeleton/learning project. Must provide full documentation and details e.g. any project settings such as adding fulltrust capability, any limitations etc.

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    How to modify the Prototype properties of a Navigator object that can be viewed using the navigator command in the browser console. You must edit the Prototype properties at the lowest level in the object list to change the platform value of userAgentData

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    I'm in need of a .NET Core developer to create an appraisal system. This system is designed to implement multi-page functionality. The system should be robust and user-friendly, ensuring a seamless user experience. Your primary task will be to build the system according to the provided guidelines. The appraisals can be conducted by the user without the need of connecting to any existing software or databases. Ideal Skills and Experience: - Proficiency in .NET Core - Experience in developing multi-page systems - Strong understanding of user authentication - Familiarity with document uploading - Competency in creating rating and feedback systems The project does not involve any integration with existing software or databases. You will be working on building the appraisal system from s...

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    I'm looking for an expert in .Net 8 Blazor to enhance our RIS (Radiology Information System) application with several new features, specifically focusing on workflow automation. Key Features to Add: - Workflow Automation: This includes automating the patient registration and check-in process, radiology order entry and tracking, as well as results distribution and notification. Ideal Candidate: - Proficient with .Net 8 Blazor framework - Experienced with Radiology Information Systems - Skilled in workflow automation - Capable of building secure and scalable systems - Understanding of healthcare industry regulations and standards If you have the expertise and experience in these areas, please reach out to discuss this exciting project!

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    I need a simple C# Windows Forms management project. It has three classes: Service, Tourist and Tranzactions. It's for college and supposed to be for a tourism agency wanting to keep track of its services, tourists and tranzactions. Nothing complicated, a CRUD app connected to a SQL database, simple UI and the project has to meet the requirements from the screenshot attached below.

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    Urgent C# Software Support Needed. Need someone expert in C# who can do maintain on software, check error and solve.

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    We have one upcoming project for which we need PLC programmer for 3 days who must know programming and maintenance.

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    Hello, I need a simple C# Windows forms management project. It has 3 classes: Service, Tourist and Tranzactions and has to meet the requirements from the screenshot attached below. The UI shouldnt be anything complicated either, its just a project for college

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    Hi all! I need to develop. We have a file download page. We need to develop a system with an admin panel and personal user accounts. We need to keep statistics on how much traffic each user gives, how many downloads and how many installations. Ready to listen to your suggestions Key Requirements: - **Software Distribution**: The process should involve manual installation, ensuring that users are actively involved in the process. - **Analytics Tracking**: The network should be able to provide detailed insights into user behavior, software popularity, and other relevant metrics. - **User Account Management**: A centralized system for user registration, login, and profile management is essential for this project. Ideal Skills and Experience: - Proficiency in Windows software development and...

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    We are seeking an expert with proficiency in both FoxPro and C#. The task at hand involves preparing and sending invoice data to a C# web service. Key tasks: - Extract invoice data from FoxPro, including: - Customer information: Name and Phone number - Product details: As the specific details were not provided, we are expecting someone with the ability to handle a variety of product-related data - Invoice totals Ideal skills and experience: - Proficient in FoxPro and C# - Previous experience with invoice data handling - Excellent attention to detail and data accuracy - Quick turnaround time This project requires a deep understanding of both FoxPro and C#, as well as experience in handling and preparing invoice data in a fast-paced environment.

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    I am in need of a skilled developer who can help me create integrations between different apps and software for my company. The main focus will be on integrating Trello, WhatsApp, and our billing software. Here are the specifics of what I am looking for: - **Trello Integration**: I need the developer to work on automating the process of synchronizing tasks, notifying on changes in cards, and creating cards automatically. This will ensure a seamless workflow and efficient task management within Trello. - **WhatsApp Integration**: The main goal behind this integration is to enable the sending of automatic messages. This could be vital for sending reminders, updates, or other important information to my team or clients. - **Billing Software Integration**: The developer should also work on...

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    I am looking for a software developer that can create a comprehensive tracking system for my large-scale business. The system should automate inventory management, and customer support processes. Key Features: - Inventory Management: As my inventory size is large (over 500 products), the system should be able to efficiently track and manage stock levels, reorder points, and provide alerts for low stock. - Customer Support and Communication: The system should include a CRM module that will help me automate my customer support processes. This includes tracking interactions with customers and managing communication effectively. Ideal Skills: - Software Development: Proficient in developing customized software applications that are scalable and can handle a large volume of data. - Automat...

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    I am looking to develop a Variable Message Sign (VMS) software. The software should be: - Compatible with Windows - Able to facilitate message scheduling and display - Support remote management and control - Allow for advanced message customization - This SAAS (Software As a Service) based Software will be display a content publishing management system for PC, which is installed in the Windows operating system and allows editing solutions and playing the solutions on LCD or LED displays. - The software will be SAAS Based, On which multiple clients will be added, and the APIs of the device sold will be integrated into the Software. - This software will have a variety of media: you can add general windows, cut-to-display windows, Office documents, images, videos, GIFs, text, colorful te...

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    I am looking for a proficient data analyst who can access, clean, and analyze large volumes of customer data. Ideally, the freelancer should have a background in big data, business intelligence, and data visualization, and previous experience in dealing with customer data specifically. Tasks to be undertaken include - - Retrieving customer data from the database - Cleaning the data efficiently to ensure it is free from errors and inconsistencies - Analyzing the data to provide detailed insights - Demonstrating these insights through clear visual tools The ideal freelancer for this job would display deep understanding and experience in SQL to query and manipulate databases. Python scripting knowledge for data analysis and cleaning is a major plus. Proficiency in using data visualizatio...

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    I am currently seeking a skilled and experienced C# developer with expertise in the .NET framework. The primary task at hand is to implement advanced background job features within the project, with a specific focus on Asynchronous Processing and Queue Management. Key Deliverables: - Implement Asynchronous Processing: The developer should be able to design and implement a system where tasks can be processed concurrently, allowing for better performance and resource utilization. - Implement Queue Management: The project requires a developer who can set up a robust queue management system, ensuring tasks are executed in the correct order and at the right time. Specific Requirements: - Maximum Queue Size: The system needs to be designed with scalability in mind. You should be able to defi...

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    I am looking for ready made chat application built in .net core. Only looking for ready made projects. Features- Edit message, Delete message, Create Group, Status... I need features which is available in google chat.

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    I'm in need of a code expert who has experience in creating APIs for Autodesk Revit in C#. This project involves integrating a queue system into the API that works with all versions of Revit. Key Requirements: - Expertise in C# and Autodesk Revit API: You should have a deep understanding of C# programming language and experience working with the Autodesk Revit software. - Queuing System Development: The main task in this project is to design a queue system that allows users to create, manage tickets and get notifications and alerts. Your task will be to: - Develop an API that works with all versions of Autodesk Revit - Implement functions for creating, modifying and deleting elements in Revit - Design and integrate a user-friendly queue system that allows for ticket creation and m...

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    As a .NET developer with expertise in multi-tenant functionality, I am in need of a professional who can help me implement and refine this feature within my web application. It involves user authentication, tenant administration, and data isolation. Key Requirements: - Implement a robust user authentication system, ensuring that only authorized users have access to the system. - Develop a seamless tenant administration system, allowing me to manage different tenants within the application. - Ensure data isolation is maintained between tenants, guaranteeing that each tenant's data is secure and isolated from others. - Integrate DNS functionality within the application, allowing me to manage DNS, configure DNS records and resolve DNS queries. Ideal Skills: - Proven experience in dev...

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    I'm in need of a Classic ASP script that can send transactional messages through WhatsApp. The ideal candidate needs to have a strong understanding of both the ASP and WhatsApp APIs. Key Requirements: - The script should be able to send between 100 to 1000 messages per day. - Each message sent should be personalized. Skills and Experience Needed: - Proficiency in Classic ASP, with previous experience in developing similar scripts. - Knowledge on the WhatsApp API and its integration with ASP. - Proven track record in handling high volume messaging. It's crucial for me that the messages are sent accurately and efficiently, with the ability to personalize each one. A candidate who can develop a reliable and scalable solution for this requirement will be preferred.

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    I'm looking for a skilled developer to create a chat bot using Microsoft Copilot. The chat bot will be used for specific tasks and handle various information on a messaging platform that is yet to be decided. Key Responsibilities: - Develop a chatbot using Microsoft Copilot - Integrate the chat bot with the messaging platform that is chosen - Implement the specific functions and tasks the chat bot is required to handle Ideal Skills and Experience: - Strong experience in chat bot development - Proficient in using Microsoft Copilot - Familiarity with integrating chat bots with different messaging platforms - Ability to create a seamless user experience - Excellent problem-solving skills - Strong communication skills to understand the project requirements and provide updates on the pr...

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    Amazon SP API Expert Required 5 days left
    VERIFIED

    I need a seasoned professional with expertise in .Net Core to assist with integrating and retrieving data from the Amazon Selling Partner API. The key tasks for this project will revolve around API integration and product data retrieval. Key Requirements: - Proficiency in .Net Core - Proven experience with API integration - Strong background in product data retrieval - Familiarity with Amazon Selling Partner API would be advantageous The ideal candidate should be able to guide the most effective ways to extract product data from Amazon's API and implement this process seamlessly. I need help of expert on hourly bases with my team. The person who we will hire they need to seat with my team and give solution where we have facing problem. The main problems we are facing are 1. Varian...

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    I am looking for a skilled ASP.NET C# developer to incorporate a digital signature feature into my Crystal Report PDFs within my web application. This will serve the purpose of authenticating the reports. The signed reports should be saved into a SQL Server database. Key Requirements: - Implement a digital signature feature on Crystal Report PDF files. The purpose of this is to ensure the authenticity of the reports. - The digital signing process should be automated after an approval process. - Save the signed reports into a SQL Server database. Ideal Skills and Experience: - Proficiency with ASP.NET Web Forms and C# is a must. - Experience working with Crystal Reports would be a plus. - Familiarity with SQL Server database management. - Understanding of digital signature implementation ...

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    I need a reliable ASP.NET Web Application developer to build a simple news website that focuses on international news. For this project, you will be working with predefined news sources to ensure the website is consistently updated with the latest news. The details of the task are included in the shared PDF. Please check the PDF before applying for the task. Key Features: - Updating the website using RSS Feeds. Content Publishing: - You will be responsible for setting up an automated system that pulls news content from predefined RSS sources - The design should be clean and easy to navigate, prioritising the latest news updates. Ideal Skills and Experience: - Proficiency in ASP.NET development. - Previous experience in building news websites or other content-driven platforms. - Knowle...

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    .Net (C#) Upgrade 5 days left
    VERIFIED

    Currently using .Net Framework 4.5 and looking to upgrade project. The main goal for this upgrade is to ensure compatibility with modern systems. I don't require any specific performance improvements, just upgrading the framework is the main focus. The code base is for a Web API that integrates with SQL Server. There is a separate UI front end that is not included. The current version is .Net Framework 4.5 with the following target techical Stack • ASP.NET Core 8.0 (with .NET 8.0) • ASP.NET WebApi Core • ASP.NET Identity Core • Entity Framework Core • FluentValidation • Swagger UI • GIT Key requirements: - Expertise in C# - Strong understanding of .Net architecture - Previous experience in upgrading .Net projects to ensure compatibility with modern...

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    I'm in need of a competent developer who can help me create a simple Angular-based web application and a corresponding API. The app is intended for displaying trade and progress data from a database in a user-friendly manner. Key aspects of the project are as follows: - **Web Application with Angular**: The basis of this project is a web application. The chosen individual will need to be proficient in Angular to build a smooth and responsive user interface. - **API Development**: In addition to the web app, you'll need to create a backend API that communicates with the database. This API should serve the required data to the Angular frontend. - **Real-time Status Updates**: The application should be able to update the user in real-time with the latest trade and progress data. ...

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    Change information such as mobile identifiers, platforms, etc

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    Create Blazor Fluent UI template sample pages with login and account profile page

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    Creating a comprehensive dashboard for our POS (Point of Sale) system involves several key components and technologies. Here’s a detailed outline of the project requirements and the ideal skills needed to build the solution: Project Overview The goal is to develop a dashboard for an existing POS and inventory management system that consolidates sales and collection reports, provides inventory management, and includes customer data analysis. The dashboard should be accessible via web browsers and mobile devices. Key Features 1. Sales Reports o Daily Sales Report: Display daily sales data with graphical representation. o Monthly Sales Report: Display monthly sales data with graphs. o Annual Sales Report: Display yearly sales data with graphical representation. o Data Source...

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    I'm in need of a PowerBi expert to resolve a critical error for me. The error message reads: "Failed to save modifications to the server. The error returned: 'Relationship '59f250b2-ca16-47f4-8a50-ba4d8636a1ed' points to deleted column 'Setter 2' in table 'Bridge of Setter'." - Urgency: The task should be completed within 24 hours. - Documentation: I don't need any documentation on how the issue is resolved, just the solution itself. - Dataset Access: Unfortunately, I can't provide access to the original dataset. The expert will need to resolve the issue without it. Skills and experience required: - Proficient in PowerBI with experience in resolving server-related errors. - Ability to work under tight deadlines and deliver work ...

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    I'm in need of a software developer who can assist me in creating a software application that can search through public property records and monitor for changes, sending notifications through a dashboard. Key Requirements: - Develop a software application capable of searching through public property records. - Implement a feature that allows the software to monitor these records for specific changes. - The software must be able to send notifications regarding these changes through a dashboard. Ideal Skillset: - Proficiency in software development and programming. - Experience in database management and data analysis. - Familiarity with creating software for monitoring data and sending alerts. - Ability to create a user-friendly dashboard for notifications. If you have expertise in ...

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    looking for an expert in video analytics to help with a live stream volume calculation project for inventory management. Key Requirements: - Utilizing video analytics to calculate and track volume - Developing a system to process live streaming video feeds - Find volume of a dirt pile using multiple fixed cameras and any other needed sensors in .NET core C#. Examples of apps already built - URC Ventures Stockpile Reports Lite iPhone app; ; Use openly available camera appliances so we shall be independent of any specialty vendors. If some 3rd party tools are used, our pre-approval, source codes and unlimited licenses be included, meeting our requirements given here. Provide for some occasional obstructions or interruptions in camera views. If some 3rd party tools are used, our pre-approv...

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    C# .net8 Expert Developer 5 days left
    VERIFIED

    I'm seeking a skilled C# .net developer to improve the performance of my application. - Scope: The project involves fine-tuning the existing codebase, optimizing database queries, and enhancing the overall performance of the application. - Skills: The ideal candidate should have a profound understanding of C# .net development, experience in performance optimization, and a strong grasp of database management. If you're proficient in identifying bottlenecks and implementing solutions to boost system speed and efficiency, I'd like to hear from you. Please share your past relevant experience.

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    Mujhe ek software developer ki need h Jo ki c# and php language dono Janta ho aur wo developer 10 year experience ho Mera part time work h USS pe kaam krna h main ushko 30k monthly duga agar koi developer ho to msg kare mujhe

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    I'm seeking a savvy developer to create a 1D barcode (UPC, EAN) inventory management system. This should then be integrated with an existing product management system. Key requirements: - Design and develop a user-friendly barcode inventory control system - Experience with 1D barcodes, preferably UPC and EAN - Capability to integrate with existing product management software The main users of this system will be store staff members. Therefore, it should be easy to navigate, and seamless in functionality to support a fast-paced retail environment. Expected expertise: - Proven experience in building similar inventory management systems - Proficiency in working with 1D barcode technology - Expertise in software integration - Solid understanding of user interface for non-technical ...

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    I am looking for expertise in React Native. The first module of the application is straightforward: it involves taking a picture and saving it to a local folder. Subsequently, the pictures need to be uploaded to Google Drive or a similar shared drive. The goal is to take pictures, extract data using machine learning and OCR. I can make payments, but they will be small and incremental. Additionally, I am looking for someone proficient in leveraging ChatGPT and other AI/LLM development tools. Looking forward to your prompt response.

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    I am in need of an experienced Visual C# developer with expertise in User Interface (UI) design and database integration. The ideal freelancer for this project should have: - Proven experience in Visual C# programming - Ability to create a clean and minimalist user interface. - Proficiency in database integration, specifically with handling user data and profiles. Main tasks and features include: - Developing an intuitive and minimalist UI using Visual C#, to ensure easy navigation and optimal user experience. - Integrating the system with a database that handles user data and profiles. This includes setting up, managing, and maintaining the database to ensure its smooth operation. This project requires a successful blend of programming skills and a keen eye for design to create an eff...

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