bingqifan

Senior backend and systems engineer with 8+ years of software experience across Go, C++, Apple client platforms, real-time audio/video, and SDK systems. Built LoginBackend, a production Go service covering authentication, PostgreSQL persistence, billing and subscriptions, payment-provider webhooks, entitlement and device management, artifact delivery, admin operations, notifications, and deployment workflows. Built a Go compiler and virtual machine covering lexer, parser, AST, bytecode compilation, execution, REPL, and benchmarks. Also contributed to cloud PC and cloud gaming SDKs involving WebRTC/OWT, FFmpeg, codec adaptation, IPC, permission control, virtual printing, and P2P networking. Open to remote roles, independent contractor or EOR arrangements, and employer-sponsored relocation.