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Short-Term Development Support with Long-Term Opportunity Project Type: Contract / Freelance / Agency Start: Immediate Deadline: December 24 (Version 1.0 Release) About the Project We are preparing the Version 1.0 release of a desktop-based proxy platform. The core architecture and main functionality are already in place. We are now looking for experienced developers or development teams who can provide short-term, high-intensity support to finalize integrations, stabilize the system, and prepare the product for public launch. This is not a greenfield project. Tasks are clearly scoped, modular, and will be executed under the technical direction of a Lead Developer. Release Scope (Version 1.0) Version 1.0 is focused on delivering a clean, stable, commercial-grade core product: Fully functional UI (marketplace, proxies, logs, settings) Working marketplace integration (Thordata and Evomi) Basic proxy engine (HTTP, HTTPS, SOCKS5, DNS modes) Licensing, authentication, and TOTP Client to backend synchronization Web dashboard (usage and proxy inventory) Ready for public launch and demonstrations Advanced features (pools, ban-risk scoring, geo-analytics, enterprise RBAC) are explicitly out of scope and planned for Version 2.0+. Areas Where Support Is Needed 1. Desktop Client (Qt / QML / C++ / Rust) UI implementation and polishing WebView-based marketplace integration HTTP / HTTPS / SOCKS5 routing DNS local and remote modes Logging and basic testing tools Licensing and authentication integration Error handling and stability improvements 2. Backend API Authentication (login, signup, JWT, refresh tokens) Email verification TOTP (Google Authenticator) Licensing engine and device binding Marketplace provider adapters (Evomi, Thordata) Purchase, assignment, and synchronization flows Proxy inventory management Usage tracking and client-backend sync Stripe subscription integration (simple plan) 3. Web Platform ([login to view URL]) Product landing page User dashboard (usage and proxy inventory) Login and API integration Stripe checkout integration Simple documentation pages 4. Integration and Stability End-to-end client-backend synchronization API consistency and data integrity Release and demo stability Timeline and Working Model Immediate start required Fixed deadline for Version 1.0: December 24 Parallel development across modules encouraged Clear task ownership under Lead Developer guidance Post-Launch Support and Long-Term Engagement This engagement is not limited to the initial release. After the successful Version 1.0 launch, we plan to: Retain developers for ongoing paid support Offer longer-term contracts or permanent roles Continue development toward Version 2.0 and beyond Assign technical ownership of system components to contributors who worked on the release Developers and teams involved in the release phase will be strongly preferred for: Post-launch maintenance and bug fixes Hotfixes and stability updates Feature expansions Scaling, performance optimization, and architectural decisions What We Expect Ability to start immediately Clear communication and fast execution Comfortable working under technical leadership Production-quality code and documentation Short-term commitment with potential long-term continuation Please Include in Your Response Which module(s) you can support Availability (hours per week) Earliest possible start date Relevant experience with similar systems Whether you are an individual developer or a company
Projekt-ID: 40050139
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184 Freelancer bieten im Durchschnitt €2.187 EUR für diesen Auftrag

Hello, I understand you need fast, production-grade support to finalize Version 1.0 of the desktop proxy platform. I will work under the Lead Developer to finish integrations, stabilize the system, and prep for public launch. My plan targets a polished UI for marketplace, proxies, logs, and settings; marketplace adapters for Evomi and Thordata; a basic proxy engine (HTTP/HTTPS/SOCKS5, DNS modes); licensing, authentication with JWT and TOTP; client-backend sync; and a web dashboard. We will keep scope to Version 1.0 features and ensure readiness for demos with robust testing and clear documentation. What follows are the key confirmations I’ll pursue (8-10 questions to ensure alignment): What exact Qt version and compiler/toolchain should I target? Is the V1.0 release intended for Windows only or should we support Linux/macOS as well? Do you have an existing test strategy or automation for desktop and API areas? What is the current status of Stripe integration and which billing options must be available in V1.0? What licensing model details and activation flow are expected (per-seat, per-device, etc.)? What are the acceptance criteria and minimum uptime reliability for V1.0? What is the go-live and demo plan and who signs off on release readiness? Which logging/monitoring metrics are critical at launch, and what tooling do you prefer? What level of documentation and knowledge transfer is expected for post-launch maintenance teams? What is the most critical acceptance
€3.000 EUR in 12 Tagen
9,3
9,3

⭐⭐⭐⭐⭐ Short-Term Development Support for Desktop Proxy Platform ❇️ Hi My Friend, I hope you are doing well. I just reviewed your project needs and see you're looking for development support for your desktop proxy platform. You don’t need to look any further; Zohaib is here to help you! My team has completed over 50 similar projects. We will finalize integrations, stabilize the system, and ensure a smooth public launch by the deadline. ➡️ Why Me? I can easily support your project with 5 years of experience in desktop application development, focusing on UI implementation, backend API integration, and system stability. My skills include C++, Qt, and web technologies. I also have a strong grip on backend integrations and client-server synchronization. ➡️ Let's have a quick chat to discuss your project details and let me show you samples of my previous work. I look forward to our conversation! ➡️ Skills & Experience: ✅ C++ ✅ Qt/QML ✅ Rust ✅ API Development ✅ JWT Authentication ✅ Stripe Integration ✅ WebView Integration ✅ Client-Backend Sync ✅ Error Handling ✅ Logging Tools ✅ User Interface Design ✅ Documentation Looking forward to your response! Best Regards, Zohaib
€1.800 EUR in 2 Tagen
7,9
7,9

Hi there, I can support your Version 1.0 release with fast, high-quality development across the modules you need — desktop client, backend API, and web platform. I’m experienced with complex integrations, authentication flows, marketplace adapters, and stabilization work under tight deadlines, and I can start immediately to help finalize UI, licensing, sync flows, and API consistency for a smooth December 24 launch. I deliver production-ready code, clear communication, and can work in parallel with your lead developer for rapid progress. Please check my profile for client reviews, and send me a message so we can discuss. Thanks
€1.750 EUR in 15 Tagen
8,0
8,0

Hi Marvin, I am an experienced developer who can provide high-intensity support to finalize integrations, stabilize the system, and prepare your desktop-based proxy platform for public launch. I specialize in UI implementation, marketplace integration, routing, logging, licensing, and backend API development. Let's discuss further to ensure a successful Version 1.0 release. Regards, Sai Bhaskar
€1.600 EUR in 7 Tagen
7,7
7,7

Hi Marvin, We’ve developed similar proxy products, including a fully functional Chrome extension that integrates with multiple marketplaces and supports multiple proxy types. We also have extensive experience with desktop apps using Electron and .NET, and we’ve worked with C++ and Rust for backend services. As a team of 10 developers, we can provide dedicated resources for both front-end and back-end tasks, ensuring you get the right expertise for each specific job. We also prioritize product stability and security, with dedicated QA engineers to thoroughly test every release. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. Feel free to message me anytime—I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best, Adil
€3.000 EUR in 21 Tagen
7,2
7,2

As a seasoned Full Stack Software Developer with over 12 years of expertise, I confidently extend my hands to assist in the successful finalization and launch of your Proxy Platform. My robust skills in C++, MySQL, and PHP make me stand out for your Desktop Client and Backend API requirements. I have a profound understanding of Web Development that would efficiently lend towards creating your Product landing page, User dashboard, implementing login & API integration, and incorporating Stripe checkout into the Web Platform using Next.js. I understand that you need promptness without compromising on error-free high-quality outputs. And my extensive experience of delivering over 300 projects reflects this well. Clear communication is fundamental for seamless collaboration, and I ensure it'll be prioritized throughout our journey together. Moreover, being aware of the long-term goals of this project, I'm thrilled about the potential continuation beyond Version 1.0 as well. To recapitulate, choosing me translates to optimal use of my comprehensive skills in C++ Programming, MySQL and Software Architecture combined with years-long development experience. Together we can finalize the product for public launch and lay a sturdy foundation for Version 2.0 and beyond. Let's ensure production-quality code, fast execution on clear tasks with synchronized collaboration starting at the earliest possible date!
€2.000 EUR in 12 Tagen
7,1
7,1

Hi Marvin, I am thrilled about the opportunity to finalize and launch your Proxy Platform. With my 12+ years of experience in Full-Stack Development and Digital Solutions, I am well-equipped to provide the necessary support to bring your project to fruition. My expertise lies in web development, UI/UX design, automation, API integrations, and digital marketing. I can offer support in developing the Desktop Client, Backend API, Web Platform, and ensuring integration and system stability. I am committed to delivering high-quality code, meeting deadlines, and providing post-launch support. Let's kickstart this collaboration to achieve a successful Version 1.0 release. When can we discuss the project details further? How soon are you looking to kick off this project and have a discussion about the details?
€2.550 EUR in 13 Tagen
7,0
7,0

As an accomplished and well-rounded technology professional, I am excited and up for the challenge of finalizing and launching your proxy platform. With over two decades in the IT industry, I have honed my skills in various development areas such as web and mobile application, AI, and cybersecurity - all of which are highly applicable to the tasks at hand. My proficiency in C++ programming will greatly support your desktop client needs, while my expertise in Java and MySQL lends itself well to backend API implementation. Beyond just addressing your immediate project requirements, I am genuinely committed to maintaining long-term relationships. I understand your need for post-launch support, bug fixes, hotfixes, and feature expansions – offering continuity where others may not. Additionally, my familiarity with architectural decisions, performance optimization, and scaling aligns perfectly with your plans for future developments. Overall, choosing me for this project means guaranteeing a skilled developer who is comfortable taking direction from technical leadership, delivering top-notch code/documentation quality on schedule, and is ready to build upon the foundation laid in Version 1.0 for sustainable growth of this system beyond the initial launch.
€1.500 EUR in 7 Tagen
7,0
7,0

Hello, Hope you're doing well! I am a Web Developer with experience in HTML, CSS, JavaScript, PHP, Laravel, Node.js, React, WordPress, and full-stack development. I can design and develop a high-quality, responsive, and user-friendly website tailored to your business needs. Why Choose Me 1. Expertise in Frontend (HTML, CSS, JS, React, Angular, Tailwind) 2. Strong Backend skills (PHP, Laravel, Node.js, Express, MySQL) 3. Build completely responsive & mobile-friendly websites 4. SEO-optimized, fast-loading and secure 5. Integration with APIs, payment gateways, admin panels 6. Clean, scalable, and well-documented code 7. Can start immediately What I Can Deliver 1. Custom website (Business, Portfolio, Ecommerce, SaaS, CMS) 2. WordPress theme setup, customization, plugin integration 3. Full-stack website with admin dashboard 4. API development and integration 5. UI/UX improvements & redesign 6. Bug fixing and performance optimization 7. Database design & deployment 8. Hosting + domain + SSL setup (if needed) Availability I can start right away, and provide daily updates. Let's Get Started Share your requirements or a sample/reference website — I will provide: 1. Best approach 2. Timeline 3. Cost estimate Looking forward to working with you!
€1.500 EUR in 7 Tagen
6,6
6,6

Hi, Marvin! I understand that finalizing a complex desktop proxy platform under a tight deadline can be challenging, especially ensuring client backend sync, stable marketplace integration, and secure licensing. I can help by delivering clean, reliable code and smoothing out all integrations to meet the Version 1.0 release. I have over 10 years of experience building backend systems, automation workflows, and API integrations, including projects that required desktop clients, web dashboards, and secure authentication flows. I’m comfortable working under technical leadership, taking ownership of specific modules like backend APIs, client backend synchronization, or web dashboards, and ensuring production ready quality under tight timelines. I’m highly proactive, detail oriented, and can start immediately, committing the necessary hours per week to meet your December 24 deadline while preparing the platform for public launch. I’d love to contribute to this release and continue supporting future versions.
€1.500 EUR in 7 Tagen
6,4
6,4

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
€2.500 EUR in 21 Tagen
6,6
6,6

Hi Marvin, Experienced proxy platform developer available immediately for Desktop Client + Backend API (40 hrs/week) with proven Qt/C++ marketplace integrations and Node.js proxy backends – ready to ship V1.0 by Dec 24. Modules I Own: 1. Desktop Client (Qt/QML/C++): Marketplace WebView, SOCKS5/HTTP routing, licensing, sync – 15+ years Qt 2. Backend API: JWT/TOTP auth, Evomi/Thordata adapters, Stripe subs, proxy inventory – Node.js/NestJS expert Timeline Commitment: --> Immediate start today --> Full V1.0 modules complete by Dec 20 (4-day buffer for QA) --> Post-launch retainer ready for V2.0 ownership Relevant Experience: --> Delivered "ProxyForge" (Qt desktop + Node marketplace, 50K users) --> Thordata/Evomi API integrations (live production) --> SOCKS5/HTTP residential proxy routing (10Gbps+ throughput) --> Individual senior developer – direct communication, zero overhead. Delivered 4+ proxy platforms to production. Code samples + Qt proxy demo available. Ready for repo access + task kickoff now. Regards, Atta
€2.150 EUR in 25 Tagen
6,1
6,1

Hi, I can support this project with immediate availability and have strong experience finalizing complex system releases under tight deadlines. I’ve previously worked on similar multi module platforms including desktop clients built with Qt and Rust, backend APIs with authentication flows, licensing engines, marketplace style integrations and synchronized dashboards. I’ve also handled release stabilization for products preparing for public launch where rapid iteration, clear task ownership and close collaboration with a lead architect were critical. For Version 1.0 I can assist across the desktop client, backend API and web dashboard layers including UI polish, marketplace integration, routing modes, authentication flows, Stripe setup, proxy inventory syncing and end to end stability improvements. My focus will be delivering clean predictable behaviour and ensuring the entire client to backend pipeline is stable for the December 24 release. I can commit to intensive short term work and am open to long term engagement after launch. Best regards, Joseph
€2.250 EUR in 7 Tagen
6,3
6,3

Hi there, I'm John, a skilled freelancer with expertise in software development and project management. I am excited about the opportunity to support your project's finalization and launch of the proxy platform. I have a proven track record of delivering stable and commercial-grade products. I can provide high-intensity support to integrate, stabilize, and prepare the platform for public launch. Let's collaborate to ensure a successful Version 1.0 release. Looking forward to discussing this further.
€2.000 EUR in 15 Tagen
5,9
5,9

Hello There!!! ⚜⭐⭐⭐⭐⚜(( High-Intensity Support for Version 1.0 Proxy Platform Launch ))⚜⭐⭐⭐⭐⚜ This project is about finalizing and launching a desktop-based proxy platform with a stable UI, working marketplace integration, proxy engine, and client-backend synchronization. You are looking for short-term, focused development support under the guidance of a Lead Developer to ensure Version 1.0 is commercial-grade and ready for public release. I have extensive experience with Qt, C++, API integration, and backend systems, delivering production-ready desktop applications with secure authentication and synchronized client-server workflows. I can contribute to UI polishing, marketplace integration, proxy routing, licensing modules, or backend API development while ensuring stability and clean code. Three key features of the project are polished desktop client functionality, seamless client-backend synchronization, and marketplace integration. I am ready to start immediately, commit focused hours, and collaborate closely to meet your December 24 deadline. Let’s discuss how I can contribute to a smooth launch. Warm Regards, Farhin B.
€1.515 EUR in 15 Tagen
6,3
6,3

Hi, Iosif here, I’m applying to support your Version 1.0 release and can start immediately. Short-term, high-intensity work focused on final integrations, stabilization, and launch readiness is my specialty, especially for products that already have a solid core and need to be production-ready under a fixed deadline. Approach I take ownership of a clearly defined critical path (Desktop client, Backend core flows, or Client↔Backend synchronization) and work closely with the Lead Developer. My focus is strictly on launch-blocking issues: completing integrations, stabilizing happy paths, improving error handling, and ensuring reliability for demos and real usage. I work fast, communicate clearly, and avoid unnecessary architectural changes. Deliverables Stable, feature-complete implementation for the agreed module Reliable authentication, licensing, marketplace, and sync flows Improved error handling, logging, and edge-case coverage Release-ready stability for public launch and demonstrations Clear handover notes for post-launch continuity Availability & Terms Immidiate start, working throughout 24 December Individual developer, comfortable working under technical leadership. Wir können auch auf deutsch reden. I also remain available for post-launch support, hotfixes, and longer-term involvement toward Version 2.0.
€4.500 EUR in 7 Tagen
5,9
5,9

Hi there, I am very excited about your project to finalize and launch the Version 1.0 of the desktop-based proxy platform. With experience in handling similar integrations and enhancements, I am confident I can help ensure the product is stable and ready for its public debut. I have a strong background in C++ and Qt for UI implementation, alongside backend API development capabilities in handling authentication and subscription integrations. My expertise extends to synchronizing client data and ensuring robust logging for troubleshooting. I can start immediately and am available to work intensively toward your December 24 deadline. I would also love to know which specific areas you need the most support in—UI or API development, for example? Best regards,
€2.500 EUR in 20 Tagen
5,4
5,4

Nice to talk you marvinh23, After reading in detail the requirements of your project and concluding that they match my areas of knowledge and skills, I would like to introduce myself. My name is Anthony Muñoz and I am the lead engineer for DS Pro IT agency. I have worked for over 10 years in Backend and software development and have successfully done multiple jobs. It will be a pleasure to work together to make your project a reality. Please feel free to contact me. I´m looking forward to working with you. I really appreciate your time and remain attentive to any request or question. Greetings
€4.120 EUR in 7 Tagen
5,9
5,9

Hello, am ready to help you with your project. Let's get started.
€2.793,39 EUR in 9 Tagen
5,6
5,6

Hi, I am an experienced software developer with a strong background in desktop and web platform development, including expertise in Qt, C++, and Next.js. I have successfully delivered complex projects involving API integrations, UI polishing, and system stability improvements, aligning well with your Version 1.0 release requirements. I am confident I can support the desktop client module, especially in UI implementation, routing, error handling, and licensing integration, ensuring a smooth public launch. I am available immediately for full-time support and can start working as early as next week, dedicating up to 40 hours per week. My previous projects include developing stable proxy systems, authentication modules, and web dashboards for tech startups, which makes me well-suited to contribute effectively to your team. I am eager to bring my strong technical skills and proactive communication to your project under the guidance of your Lead Developer and help finalize the release on time. Looking forward to your response and the possibility of working together. Best regards, Jushua
€2.500 EUR in 6 Tagen
5,2
5,2

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