I'd take off Java. Perl is optional. Add Ruby as an optional alternative to python (e.g. "Ruby or Python"). I'd also add 'git', or just decentralized version c

I'd take off Java. Perl is optional. Add Ruby as an optional alternative to python (e.g. "Ruby or Python"). I'd also add 'git', or just decentralized version control tools in general. Although not a language, it's definitely a must-have skill.