Multi-node VPN infrastructure

Job Description: Senior VPN Infrastructure Engineer / Systems Architect Project Overview We are building a scalable, high-performance global VPN infrastructure platform focused on reliability, security, and seamless user experience. The system will support thousands of concurrent users across multiple regions and must be designed for high availability, automated infrastructure management, and secure subscription-based access. The platform includes: Multi-node VPN infrastructure Automated server lifecycle management Web-based user dashboard Integrated payment and subscription system This is a production-grade systems engineering project, not a prototype. Core Responsibilities 1. VPN Infrastructure Design & Deployment Design and deploy a multi-region VPN node architecture Configure and manage proxy/VPN protocols (e.g., Xray-based stack or equivalent) Optimize routing, latency, and bandwidth efficiency across regions Ensure secure tunneling, encryption standards, and stable connectivity 2. Automated Node Rotation & Infrastructure Management Build an auto-rotation system for VPN nodes and IP addresses Implement automated: Node provisioning Node health monitoring Node decommissioning and replacement Design failover mechanisms to ensure zero-downtime service continuity Integrate infrastructure-as-code tools (e.g., Terraform, Pulumi, or equivalent) 3. Control Panel & Backend System Set up and maintain a centralized backend control system Manage: User accounts Device/session limits Subscription tiers Access control policies Ensure secure API-based communication between backend and nodes 4. Web Platform Development Develop a modern, responsive website/dashboard Features include: User registration/login system Subscription management VPN configuration generation (QR/code/link-based) Real-time account status and usage tracking Ensure clean UI/UX suitable for mass-market users 5. Payment & Billing System Integration Implement a secure subscription billing system supporting: Credit/debit cards Digital wallets where applicable Regional payment methods (e.g., Alipay / WeChat Pay if feasible via provider) Manage: Recurring subscriptions Plan upgrades/downgrades Payment failure handling Integrate with third-party payment gateways (e.g., Stripe or equivalents) 6. Security & Compliance Implement strong encryption standards across all traffic Secure API endpoints and backend services Apply firewall rules and access restrictions on all nodes Prevent abuse, credential sharing, and unauthorized access Ensure data protection best practices 7. Monitoring & Observability Build a real-time monitoring system for: Node uptime Latency and packet loss Bandwidth usage User connection success rates Set up alerting for service degradation or node failure Maintain logs for debugging and auditing Required Skills & Experience Strong experience in network systems engineering Experience with VPN/proxy infrastructure (WireGuard, Xray, or similar) Cloud infrastructure (AWS, GCP, Azure, or VPS orchestration) Infrastructure-as-Code (Terraform / Ansible / Pulumi) Backend development (Node.js, Go, Python, or similar) Experience building subscription-based SaaS platforms Payment gateway integration experience Strong understanding of: TCP/IP networking TLS/SSL Load balancing and distributed systems Nice to Have (Preferred) Experience with high-scale VPN or proxy systems CDN and edge routing experience Multi-region distributed systems design Experience building auto-scaling infrastructure UI/UX experience for admin dashboards Project Scope This is a long-term infrastructure project expected to evolve over multiple phases: Phase 1: Core VPN node deployment Basic control panel Manual provisioning Phase 2: Automated node rotation system Multi-region scaling Monitoring system Phase 3: Full web platform launch Payment integration Subscription automation Outcome Expectations The final system should: Support thousands of concurrent users Automatically recover from node failures Scale horizontally across regions Provide a smooth, consumer-grade onboarding experience Operate with minimal manual intervention Engagement Type Contract / Project-based (initial phase) Potential long-term role for system scaling and maintenance

Project ID: 40401804