VPN Backend & App Developer – Xray/VLESS/REALITY (GFW Bypass) – Test Phase

@anirudhat

Setting up a REALITY-based Xray backend for the Greater China region is a great fit for me, since bypassing DPI reliably really comes down to getting the REALITY handshake and SNI camouflage exactly right. For Phase 1 I'd install and harden 3x-ui on your Ubuntu server, configure VLESS + REALITY to borrow a legitimate TLS fingerprint (masquerading as a real high-reputation site so DPI sees ordinary traffic), add routing rules to block BitTorrent/P2P, and set per-user speed caps for free tiers. For Phase 2 I'd wire a Telegram bot (or basic Android app on the v2rayNG/Xray core) to the 3x-ui API for automated account creation, with Adsterra monetization for free users. I test real throughput and stability before handover, and I'm genuinely keen on the long-term partnership. I can start right away.

@ExpertNetworkEng

Hello, I’m a Senior Network & Security Engineer with 10+ years of hands-on experience designing, implementing, and migrating enterprise and service-provider networks. I specialize in Network Security, SD-WAN, routing & switching, enterprise wireless, and secure network architecture, helping companies modernize legacy networks, improve reliability, and reduce WAN costs. Core expertise: - Firewalls & Security: FortiGate, Palo Alto, Cisco ASA / Firepower IPsec & SSL VPN, site-to-site, remote access, policy design - Routing & Switching: Cisco ASR/ISR, Catalyst, Nexus, Juniper Routers (M10, MX 960) and SRX 500 (BGP, OSPF, EIGRP, IS-IS, MPLS, VLANs, STP, HSRP/VRRP) Enterprise LAN & campus design - LAN Switching (Multi-Vendor): Cisco, Juniper, Meraki, HP, Aruba, FortiSwitch Access/core design, redundancy, QoS, segmentation - Enterprise Wireless: Cisco WLC & APs, Cisco Meraki Wi-Fi, Ubiquiti, Aruba Wi-Fi, FortiAP Coverage design, roaming, security, troubleshooting - SD-WAN: Fortinet SD-WAN, Cisco SD-WAN (Viptela), Cisco Meraki (hub-and-spoke, MPLS + Internet, segmentation, HA, traffic steering) - Cloud & Hybrid Networking: AWS / Azure / GCP Site-to-site VPN, routing integration - Network Automation: Python Certifications: CCIE Enterprise Cisco Certified Specialist – Enterprise SD-WAN Implementation CCNP Data Center CCNP Security Juniper JNCIA-Junos, JNCIA-Cloud If you share your current setup and goal, I can propose a clear and practical solution. Best regards,

@gotucat

Hi, I reviewed your VPN backend test phase: install/configure 3x-ui on Ubuntu, deploy Xray with VLESS+REALITY to bypass DPI, add routing for BitTorrent/P2P blocking, and set automated speed capping for free users. I’ll handle the Linux System Admin side end to end: robust Xray core configurations, clean VLESS/REALITY inbound/outbound rules, and reliable API Integration with 3x-ui for automated user provisioning and updates during testing. I’ll also run Testing / QA for stability of sessions and the routing rules under real traffic. You’ll get dependable, maintainable configuration work with clear logs and responsive support for the pilot, so you can scale confidently. Let’s discuss here now.

@teodorgeorge

Hello, My background includes Ubuntu VPN backend work, API Integration, and Backend Development for account provisioning and traffic controls. A similar setup used VLESS accounts, speed limits for trial users, and blocked BitTorrent traffic through routing rules. I can install 3x-ui, configure Xray with VLESS and REALITY, and apply Web Security checks so the panel and server are safer. I can also connect the 3x-ui API to a Telegram bot or basic Android flow, with Internet Security in mind for user creation and access handling. Best regards, Teo

@MohsinCodeCraft

Hi, I can help build your VPN test phase with Ubuntu server setup, Xray/VLESS/REALITY configuration, 3x-ui integration, user management automation, and a basic Android app or Telegram bot solution. I’ll focus on creating a stable MVP with clean setup, scalability, and future expansion in mind. Please feel free to message me to discuss the project further. I’d be happy to share samples of my previous work in the chat. Thanks and regards, Mohsin

@Web1devloper

With over 8 years of professional experience in Linux backend development, I am the perfect candidate to fulfill your VPN project requirements. I have successfully built and maintained various VPN systems, some with specific focus on GFW bypassing just like this one. By leveraging my proficiency with 3x-ui, Xray, and other relevant GFW bypassing techniques, I can implement the robust core configurations you need for your VPN service. In addition to backend development, I have proven capability in front-end development as well. If required for your project, I can build a well-optimized custom Android VPN app or a Telegram Bot using open-source Xray/v2rayNG cores for effective user management and automation. Lastly, I would like to underline my commitment towards establishing long term partnerships with clients. I'm excited about the opportunity to tap into the Greater China region alongside your commercial VPN business. Gear up your project by choosing me for this test phase; the initial budget-flexibility you seek paired with my unwavering determination to deliver quality will ensure our continued collaboration as your user base escalates. Let's build bypass-effective architecture that not only ensures complete freedom surfing but also abundance in business potential!

@melopgabriel

Hi, you’re building a test-phase VPN stack that needs to be stable, low-cost, and ready for future growth. I understand the priority is a working MVP: 3x-ui on Ubuntu, Xray/VLESS/REALITY setup, basic traffic controls, and a simple user-facing layer for automation. I’ve worked on Linux-based proxy and VPN deployments, including Xray core configuration, panel setup, routing rules, and API-driven user management. For the frontend, I can build either a lightweight Android client around open-source Xray/v2rayNG cores or a Telegram bot, depending on what is fastest for your pilot. My approach is to get the backend solid first, verify the tunnel behavior, add P2P blocking and speed caps, then connect the app or bot to 3x-ui for user provisioning and monetization. If you want a practical MVP delivered cleanly, I’m ready to help. Best regards, Gabriel

@longngoc2307

.................................Consistent Communication, Reliable delivery............................. Hello, I understand you need a test-phase VPN solution with backend setup, user management, API integration, and a simple app or bot workflow based on your planned architecture. I work with Linux servers, backend development, API integrations, security-focused deployments, and open-source system customization. I can help configure the environment, connect user management flows, test the platform, and prepare a clean foundation for future scaling. The main challenge is making the system stable and easy to maintain while handling user management and service reliability. I will focus on a practical MVP approach with clear testing and documentation. Could you share your preferred first delivery target: Android app or Telegram bot? Thank you, I look forward to helping you complete the test phase successfully.

@arturg6

Hello, "Xray VPN Test Phase – Bypass GFW with 3x-ui" I will install 3x-ui on your Ubuntu server and configure Xray with VLESS+REALITY to evade DPI, adding routing rules and speed caps. Then I will create a simple Android client (using the open‑source Xray core) that talks to the 3x-ui API for user creation and integrates the Adsterra SDK for free‑user monetization. This approach uses proven Linux and Xray tooling and keeps the codebase clean for future scaling. My recent VPN‑related automation work shows I can deliver a reliable MVP quickly: https://www.freelancer.com/projects/automation/Automate-Reolink-Video-Backup-Script/reviews Looking forward to working with you. Artur Giżycki

@alluankit01

Hi, I can help build the VPN test-phase MVP using your own authorized server infrastructure, with Ubuntu backend setup, 3x-ui panel, Xray core configuration, user management, traffic limits, and a simple Android app or Telegram bot option. The best solution is to start with a stable pilot backend first: install and secure 3x-ui, configure Xray/VLESS/REALITY, create user plans, apply speed limits for free users, block P2P/BitTorrent abuse, and connect the setup to 3x-ui API for automated account creation. I’m comfortable with Linux, Ubuntu, VPN backend setup, Xray/3x-ui, VLESS/REALITY, API integration, Telegram bots, Android VPN app workflows, traffic routing, monitoring, and long-term server maintenance. Deliverables include: * Ubuntu server setup * 3x-ui installation * Xray/VLESS/REALITY configuration * Basic routing and abuse blocking * Free-user speed cap * 3x-ui API integration * Telegram bot or basic app workflow * Test user creation * Setup documentation * MVP testing support Timeline: **3–5 days** for the working pilot. I’ll focus on a stable, secure, and legally compliant test setup ready for long-term scaling. Best regards Ankit

@codeandcommand

I have done this exact VPN setup before, Xray with VLESS and REALITY is my go to stack for GFW bypass work right now. I can start today, get a working test node up within 48 hours so you can verify handshakes and latency before committing further. Numbers above are based on the post as written, we will lock in real scope once we talk through server count and client targets. Want me to send a quick plan?

@nikhilroyjs

Hi there, I will set up and configure your Xray/VLESS/REALITY backend on Ubuntu via the **3x-ui** panel, optimized specifically to bypass GFW DPI. I will configure BitTorrent/P2P traffic blocking, implement bandwidth/speed capping (1 Mbps for free tiers), and build either a custom Android VPN app (leveraging open-source v2rayNG/Xray cores) or a Telegram Bot integrated directly with the 3x-ui API for automated user management and Adsterra monetization. I have extensive experience with Linux server administration, GFW bypass protocols, and panel API integrations. I am flexible with the pilot budget for this initial phase as I am looking to establish a long-term technical partnership to scale the infrastructure as your user base grows. I can deliver the working MVP within **5 to 7 days**. Best regards, Nikhil

@riyaazt

Hi there. This is an interesting project. One area I'd pay particularly close attention to is ensuring robust Xray core configurations, as this is crucial for successfully bypassing the Great Firewall. I see you need a test phase for your VPN backend setup. Implementing automated speed capping for free users can help manage resources effectively while ensuring a quality experience for paid users. I've worked on similar VPN projects, focusing on backend setups and GFW bypassing. Could you clarify the specific requirements for the custom Android app or Telegram Bot? Knowing that will help in planning the frontend integration effectively. Looking forward to engaging. Even if we don't end up working together, you'll still walk away with valuable insights from our discussion. Regards, Riyaaz

@alirashdi26

Hey , I just went through the project description, and I see you are looking for someone experienced in Ubuntu, Backend Development, Internet Security, Linux, API Integration, Testing / QA, VPN and Web Security. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Regards, Ali .

@jordanrafael7

Hello! Building a secure VPN backend with Xray, VLESS, and REALITY for GFW bypass requires solid Linux infrastructure and backend architecture from the ground up. I've built backend systems on Linux servers with a focus on Web Security and API Integration for traffic management and user authentication. My work with VPN configurations and secure backend development aligns directly with the requirements for deploying Xray-based protocols and ensuring reliable connections under restrictive network conditions. Here's how I'll deliver your test phase: - Set up and configure Xray with VLESS and REALITY protocols on a Linux server optimized for GFW bypass - Build the backend API for user management, connection handling, and secure session control - Implement security hardening and performance testing to validate stability under load What specific client platforms are you targeting for the app portion of this project, and do you already have preferred server infrastructure or hosting providers in mind? I'm ready to start immediately and can discuss technical requirements and timeline through Freelancer messages. Best regards, Jordan Rafael G.

@danielv2801

I can help you build a secure, scalable VPN management platform by developing a modular backend on Ubuntu with API-driven user management, automated provisioning, traffic policies, and a maintainable architecture that supports future expansion. My focus is on clean backend engineering, secure authentication, database design, automation, and reliable deployment while keeping the codebase easy to extend as your business grows. The key technical challenge is creating a stable infrastructure that can manage users, subscriptions, bandwidth policies, and application integration without sacrificing performance or maintainability. In previous backend and infrastructure projects, I developed API integrations, automated user workflows, Linux-based deployments, and scalable management dashboards, reducing manual administration by over 50% through automation and optimized service architecture. With 8 years of professional software engineering experience, I write clean, documented code, follow secure development practices, and provide reliable deployment and long-term maintenance support. Your long-term vision is exciting, and I would be happy to contribute to the platform's growth. Has the current backend infrastructure already been deployed and tested, or will this be a fresh installation? Also, do you prefer the first MVP to focus on the Android application or the Telegram-based management interface?

@emrahg7

Hi, I'm interested in your project and can complete it within a day using Xray-core, VLESS+REALITY, 3x-ui, and Telegram Bot API. Setting up a GFW-resistant node with REALITY handshake camouflage and automated user provisioning through the 3x-ui panel is exactly the kind of pilot I've built before for private VPN operators entering the China market. I'll deploy Ubuntu + Xray with REALITY pointed at a legitimate high-reputation SNI (avoiding common flagged domains), configure iptables/nft rules to drop BitTorrent/P2P signatures, and apply tc-based traffic shaping for the 1Mbps free tier. For user management I'd lean toward a Telegram Bot over a custom Android app for this test phase — faster to ship, easier to iterate, and avoids Play Store review friction while you validate demand. It talks to the 3x-ui API for client creation/expiry and can gate access via Adsterra links. One thing worth flagging: REALITY's effectiveness depends heavily on SNI choice and cert rotation — I'll handle that carefully to avoid early blacklisting. Ready to start immediately and structure this as a foundation for the long-term scaling work. Best, Emrah

@shaxzodj

With my extensive experience in Linux administration, I am more than capable of taking on the task of setting up the VPN Backend for your ambitious test phase. I have a keen understanding of your requirements for bypassing the Great Firewall using Xray/VLESS/REALITY protocols and implementing necessary routing rules while ensuring strict security. Having worked on similar VPN projects in the past, I am cognizant of the challenges and the importance of building a robust backend infrastructure that can withstand any DPI scrutiny. Furthermore, my skills extend beyond backend setup as I am also adept at developing custom applications or integrating systems using APIs. Consequently, I can not only build a functional Android VPN app (utilizing open-source Xray/v2rayNG cores) but also provide you with alternative solution: a Telegram Bot to handle user management effectively. Regarding budget constraints, I am willing to work with you in this initial test phase as I genuinely understand the long-term benefits that can come from this partnership. As for the estimated timeline, I believe with open communication we can potentially get you an MVP well within your desired time frame. In conclusion, by entrusting me with this project, not only will you gain access to my unrivaled skills in Linux and keen understanding of system security, but you would have found a reliable partner dedicated to your business's success.

@Lazarone1

Hello, I reviewed your VPN test phase and understand you need a reliable backend setup with Xray, VLESS, REALITY and automated user management. I have experience with Linux, Ubuntu servers, VPN infrastructure, API integration and backend systems. I can help configure the server environment, manage Xray services, integrate user provisioning and build a clean MVP workflow for testing. I focus on stable configuration, security and future scalability. I can start with the pilot phase, document the setup clearly and support further improvements as the platform grows.