20 years of experience with almost every flavour of industrial unixen, portable programming (C-99, POSIX, autotools), portable shell programming (POSIX.2) — dealt with many subtleties in different implementations. I work fast, if in doubt, ask for the estimate time. Probably it'll be cheaper than hiring someone with lower rate, but who'll spend several times more hours. • Automating everything • UNIX system programming including embedded systems • Web scraping and any other text transformations/extractions. • Consulting about UNIX shell scripting (bourne shell, bash, awk, sed, [BE]RE etc). • Anyway, the list is not full, as I have experience ranging from Jenkins CI setups and maintenance to writing parsers with lex/yacc. From IP traffic handling in C++ (libnetfilter_queue plus iptables custom kernel module) to product installers.