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 ISP and platform constraints, used by real users worldwide: https://sourceforge.net/projects/vpn-4g-ssl-tls-sni-vpngate/
Experienced in protocol behavior at the packet level and modifying large open-source tunneling codebases. I’ve implemented cryptographic algorithms from scratch for validation, and use established crypto libraries in production with clear understanding of their guarantees and failure modes.
Comfortable with C/C++, Go, Java, Linux internals, deep debugging, and fully remote, self-directed work.