C, Python, Lua, Java, Bash, shell, Go, VHDL, OCaml, XML, JSON, x86-64, x86, ARM, MIPS, m68k, Beyond Architecture, TCP/IP, UDP, IPv6, IPSec, IKE, SSL/TLS, POSIX, SSH, Ethernet, DHCP, DHCPv6, DNS, OpenVPN, X.509 PKI, 802.11, 802.15.4, LAN, WAN, PAN, ZigBee, SES, RS-232, HTTP, Amazon S3
13 years of experience in Linux, Debian, Arch Linux, CentOS, OpenWRT, Alpine Linux, KVM/QEmu, Linux namespaces, cgroups, nmap, Wireshark, iptables, gcc, busybox, djbdns, nginx, JenOS, Git, SVN, HG, RPM, apt, apk, dpkg, pacman, ipkg, Jetty, Netty, LaTeX