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We are looking for a developer who can design and develop a complete Windows desktop application using C# (.NET) and WPF. The developer will be responsible for building the core application logic, implementing rule-based evaluation, handling offline data and configuration, and ensuring the software runs reliably on Windows systems without any internet dependency. The application must: Work 100% offline Be developed as a Windows desktop application (not web or mobile) Use C# and WPF as the primary technology stack Load and manage data from the local file system Implement structured business logic and result calculations Be packaged with a professional installer (MSI) The developer is expected to: Write clean, maintainable, and well-structured code Implement application logic based on provided rules Handle edge cases and ensure accurate output Test the application for stability on Windows systems Coordinate on milestones and provide periodic progress updates The UI will be simple and functional; priority is on logic correctness, performance, and reliability, not heavy animations or design work. This is a project-based role with an estimated timeline of approximately 3 months. Detailed functional requirements will be shared after initial discussion and NDA. Only developers with proven experience in C# / WPF Windows desktop application development should apply.
Project ID: 40189243
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Active 4 mos ago
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35 freelancers are bidding on average ₹55,243 INR for this job

Hello, I’m a Senior Software Engineer with extensive experience in Python automation and web scraping & C# WindowFormApp and WFP. I’ve carefully reviewed your requirements and I can deliver a reliable, production-ready solution — not a quick workaround. ✅ Clean and maintainable code ✅ Clear communication ✅ On-time delivery I’d be happy to discuss your project details and propose the best technical approach. Best regards, Samir
₹50,000 INR in 3 days
4.7
4.7

Hello there, I reviewed your project C# & WPF-Based Offline Windows Desktop Application and understood the requirements at a high level. I focus on delivering clear, stable, and maintainable solutions aligned with the actual scope, I can work with .NET, C# Programming, C++ Programming and follow a clean development process with proper structure and error handling. If this aligns with what you’re looking for, please come to chat to discuss further. Best regards
₹37,500 INR in 7 days
4.0
4.0

Dear client, I have gone thru your proposal and can help work on the project according to your budget and timelines. I have experience in developing several complex desktop (Winforms + WPF ) , web applications and backend sAPI services, including low latency and live streaming financial applications and can show them for your reference. P.S: ******* I am flexible with my quote and can adjust the delivery timeline to better align with your requirements. My portfolio: ========== Feel free to explore my portfolio, where you can view the completed projects that highlight my experience in developing web, windows applications with .NET using React, WPF, Devexpress, WCF, Web APIs, Rest and background services etc. These showcase my expertise in clean code practices, design optimization, and seamless backend integrations. Experience ============ I'm a professional .NET developer with extensive experience in building secured trading and business-focused applications, including systems that require live market feed(from external and internal market sources) processing, APIs, including working on complex design projects and leveraging strong debugging skills in business logic. Thanks in advance
₹49,999 INR in 8 days
3.7
3.7

Hello, I’m Rahul Singh from Team Velora, and for the past 3 years we’ve been building reliable, offline-first Windows desktop applications using C# and WPF. We clearly understand your requirement for a fully offline, logic-driven Windows application with structured rule evaluation and MSI packaging. Let’s connect in the chat box to discuss the project details and milestones.
₹50,000 INR in 15 days
3.4
3.4

I have 7 years of experience building C# desktop applications, with multiple ERP systems successfully running in production. I can deliver a fully offline Windows application with clean architecture, accurate business logic, local data handling, MSI installer, and regular milestone-based progress updates.
₹37,500 INR in 7 days
3.2
3.2

Hi there, I’m very interested in building your fully offline Windows desktop application using C# and WPF. I have solid, hands-on experience developing production-grade WPF applications where correctness, reliability, and structured business logic are the top priorities. I can take ownership of the application end to end—from core architecture and rule-based evaluation logic to offline data handling and MSI packaging. The solution will run 100% offline, load and manage data from the local file system, and apply clearly structured calculation and decision rules with accurate, repeatable results. On the technical side, I focus on clean, maintainable code, clear separation of concerns (UI, business logic, data), and defensive handling of edge cases. I’m comfortable implementing complex rule engines, configuration-driven logic, and ensuring stable behavior across Windows environments. The UI will be simple, functional, and responsive, keeping the emphasis on performance and reliability rather than heavy visuals. I will also: • Test thoroughly on Windows systems • Package the application with a professional MSI installer • Coordinate on milestones and provide regular progress updates • Work under NDA and follow detailed functional requirements closely If you’re looking for a developer with proven C# / WPF desktop experience who understands offline-first architecture and robust business logic, I’d be happy to discuss your requirements in detail and get started.
₹56,250 INR in 7 days
3.4
3.4

As a seasoned developer with 14 years of experience, I'm genuinely thrilled by your project. My expertise lies specifically in C# (.NET) and WPF application development for Windows systems, making me well-suited for this project's requirements. In addition to ensuring 100% offline functionality, I'll use my proficiency to manage data from the local file system and implement structured business logic into your application. The priority being on the logic correctness, performance, and reliability rather than heavy animations or design work is fully aligned with my approach to software development. In fact, I thrive on writing clean, maintainable, and well-structured code that delivers accurate results even in edge cases. Rest assured, I will be thorough with testing the application's stability on Windows systems throughout the process for optimal delivery. Having had numerous successful implementations of similar projects under my belt in the past, I'm confident about our potential collaboration. And as someone committed to end-to-end project execution and strong problem-solving skills venture is complete without frequent progress updates. So let's discuss more about your project vision and guidelines. With that information in hand, I can present you with a solid milestone plan that aligns well with your estimated timeline of 3 months. Let's create an outstanding Windows desktop application together!
₹56,250 INR in 7 days
2.6
2.6

As an experienced C# developer who specializes in WPF-based applications, I am confident that I'm a perfect fit for this project. Throughout my career, I have designed and developed numerous Windows desktop applications using C# and WPF -- and always ensuring they are offline-ready. By leveraging my skills in C#, SQL, and .NET, I can maximize your project's performance and reliability. I understand that the project prioritizes logic correctness, performance, and reliability over heavyweight animations or designs, which aligns with my style. Over the years, my work has been characterized by clean, maintainable, and well-structured code that delivers accurate outputs regardless of potential edge cases. To ensure we meet your exact needs, I am well-prepared to dive into your specific business rules to implement them effectively. Moreover, being mindful of deadlines and milestones, you can count on me to provide transparent progress updates as frequent as you would like. This promises a successful collaboration with timely delivery throughout the estimated timeframe of 3 months. Let's connect to discuss further how I can enhance your desired application!
₹50,000 INR in 7 days
2.5
2.5

Hi sir I have just seen your job request and thought i am the right guy for it i actually able to guarantee you the exact result you want , and if you believe in mr you can contact me nowvia LinkedIn (provided in my profile) to discuss your project requirements in detail. I perfectly understand the unique challenges of an offline desktop application development as it sometimes demands handling local data and configuration in the absence of an internet connection. You can rely on me to develop a performant application that loads and manages local data smoothly, implements structured business logic accurately, and calculates results without any deviation. In addition to hands-on implementation, I prioritize clear communication in projects. You can count on me to provide regular progress updates, adhere to milestones, handle edge cases diligently, and ensure a stable software experience on Windows systems. Let's get started on delivering a top-notch offline Windows desktop application using C# and WPF for you! Feel free to get in touch via LinkedIn or any other convenient method mentioned in my profile.
₹56,250 INR in 1 day
0.0
0.0

I’m a C# and WPF developer with experience building offline Windows desktop applications. I can implement your rule-based logic, handle local file data, and deliver a stable app with an MSI installer. I can complete this project in ~3 months and provide regular updates on progress. Budget 45000INR works for me. Looking forward to discussing the details and starting ASAP.
₹56,250 INR in 7 days
0.0
0.0

I’m a senior C#/.NET developer with strong experience building fully offline Windows desktop applications using WPF. I focus on clean architecture, accurate rule-based logic, and stable performance rather than unnecessary UI complexity. I’m comfortable handling local file-based data, edge cases, and packaging the application with a professional MSI installer. I work with clear milestones, provide regular updates, and I’m happy to sign an NDA and discuss the detailed requirements before starting.
₹37,500 INR in 7 days
0.0
0.0

I bring over 20 years of experience in Microsoft technologies, spanning both legacy and modern application stacks. - Telecom (T-Mobile UK, 2010–2014): Maintained and enhanced roaming tools built with WinForms, SQL Server, and ASMX Web Services. Played a pivotal role during the T-Mobile–Orange merger, leading the integration from concept through successful delivery. - Healthcare (US Clinical Trials Client): Designed and led a development team to deliver a WPF application on .NET Core, leveraging SQL Server, Entity Framework, and repository pattern for scalable and maintainable architecture. - Cloud Solutions: Built multiple WinForms applications connected to SQL Server databases hosted on Azure, with secure communication via WCF Services. Throughout my career, I’ve consistently combined hands-on technical expertise with team leadership, driving projects from design to deployment. My focus has been on creating scalable, maintainable, and business-critical applications that support organizational transformation
₹70,250 INR in 7 days
0.0
0.0

Dear Client, Good afternoon . How are you? I hope this proposal finds you well. I'M A CERTIFIED & EXPERIENCED EXPERT This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills, (Desktop Application, Software Development, C# Programming, Software Engineering, C++ Programming, .NET, Data Management and WPF), as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. THANK-YOU & WELCOME.
₹75,000 INR in 1 day
0.0
0.0

I can beat your timeline and deliver a higher quality build Since I am new to this platform, I am willing to show you my previous projects via screen share before you award the project You can verify my expertise yourself I treat every project as a long-term partnership, so you will receive lifetime support on the delivered software let's chat and discuss everything
₹50,000 INR in 10 days
1.4
1.4

Hello, I am a Microsoft .NET Developer with strong experience building Windows desktop applications using C# and WPF, focused on performance, reliability, and clean architecture. I have designed and delivered multiple offline-first systems that process local data, apply structured business rules, and generate accurate results without internet dependency. Your project aligns very well with my expertise in: • Developing robust WPF desktop applications with MVVM architecture • Implementing complex rule-based logic and calculations in C# • Managing offline data from local files and structured storage • Building clean, maintainable, and testable codebases • Packaging Windows applications with professional MSI installers • Ensuring stability, performance, and edge case handling I prioritize logic correctness, system reliability, and clear milestone-driven delivery. I am comfortable working under NDA and providing regular progress updates throughout the project lifecycle. I would be happy to review your detailed functional requirements and propose a clear development plan with phased milestones. Questions: How will the business rules be defined and updated? Will they be hard-coded initially, or loaded from configurable files such as JSON or XML for future flexibility? What type of local data sources will the application use (CSV, Excel, database, custom files), and is there an expected data volume range for performance planning? I look forward to discussing the project further.
₹56,250 INR in 7 days
0.0
0.0

Hello, I have solid experience building offline Windows desktop applications using C# and WPF, with a strong focus on business logic, reliability, and clean architecture. I can design and implement the full application flow, including rule-based evaluations, local data handling, and accurate result calculations. What I’ll deliver: Fully offline WPF desktop application Clean, maintainable C# code (MVVM-based) Local file system data & configuration handling Accurate rule-based logic with edge-case handling Professional MSI installer [can use wix setups] Regular milestone updates during development I’m comfortable working on long-term, logic-heavy desktop projects and coordinating closely once detailed requirements are shared. Looking forward to discussing the functional details.
₹56,000 INR in 7 days
0.0
0.0

I have 11 years in .NET strongest desktop WPF. Can optimize to performance with multiple thread/ process, UI friendly. Looking for long term
₹55,000 INR in 45 days
0.0
0.0

I am a software developer specialized in building Windows desktop applications using C# (.NET) and WPF. I have solid experience developing fully offline desktop solutions that rely on local file system data, implement structured rule-based business logic, and produce accurate, reliable results. I focus on writing clean, well-organized, and maintainable code, handling edge cases carefully, and ensuring application stability across different Windows environments. I have experience packaging applications with professional MSI installers and following a structured development process with regular progress updates. I am comfortable working on long-term, project-based engagements and am ready to sign an NDA and discuss detailed requirements to deliver a reliable and efficient desktop application.
₹100,000 INR in 32 days
0.0
0.0

I am confident I am a strong fit for this project because I have hands-on experience in C# and WPF for Windows desktop applications. I have developed projects like the Cemetery Management System, where I implemented backend logic, managed local databases, and built fully functional offline applications. I write clean, maintainable code, handle edge cases, and ensure application stability and correctness. I am comfortable implementing structured business logic, loading data from local files, and packaging applications professionally with installers (MSI). With my focus on reliability, performance, and accuracy, I can deliver a robust offline desktop application within your timeline.
₹37,500 INR in 14 days
0.0
0.0

Hello, I’m interested in designing and developing your offline Windows desktop application using C# (.NET) and WPF. This type of project—logic-heavy, reliability-focused, and fully offline—is very much in my wheelhouse. I understand that the priority here is correct business logic, stability, and maintainability, not flashy UI or web-based shortcuts. ⸻ Understanding of the Requirements You need a 100% offline Windows desktop application that: • Is built using C# and WPF • Runs reliably without any internet dependency • Loads and manages data from the local file system • Implements rule-based evaluation and result calculations • Handles edge cases accurately • Is delivered with a professional MSI installer • Is stable, testable, and maintainable for long-term use The UI can remain simple and functional, with emphasis on correctness and performance.
₹56,250 INR in 7 days
0.0
0.0

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