| Location: Hanoi, Vietnam (UTC+7) Remote: Yes (async / contract-friendly) Willing to relocate: No Technologies: C/C++, Go, Java, Linux, networking, security, VPN/proxy systems Résumé/CV: https://puzzle-cam.sourceforge.io/cv-HN-v2-26.pdf, https://puzzle-cam.sourceforge.io/ Email: luongson9973@gmail.com SourceForge (production VPN/tunneling apps, global users): https://sourceforge.net/projects/vpn-4g-ssl-tls-sni-vpngate/ Additional academic / crypto work available on request. Independent systems-focused software engineer, working in IT since the mid-1990s, with strong background in networking, security, and low-level infrastructure. I design, build, and operate my own production-grade networked applications end-to-end: VPN/proxy systems (OpenVPN, WireGuard, HTTP/SOCKS, TLS/SNI, domain-fronting), mobile networking stacks, and backend services under real-world ISP and platform constraints, used by real users worldwide:
https://sourceforge.net/projects/vpn-4g-ssl-tls-sni-vpngate/ I’ve implemented cryptographic algorithms from scratch for validation, and use well-established crypto libraries in production with a clear understanding of their guarantees and failure modes. Comfortable with deep debugging, modifying large open-source tunneling codebases, and fully remote, self-directed work. |