Jarkko Hietaniemi
Software Engineer at Apple
Helsinki Metropolitan Area Finland
Summary
👤
Senior🎓
Top SchoolJarkko Hietaniemi is a senior software engineer and architect with 30 years of experience building system-level software, language tools, and portable cross-platform solutions. He is the creator of CPAN and a long-time Perl5 contributor who led the Perl 5.8 release, combining deep open-source stewardship with commercial engineering at companies including Google, Fastly, and currently Apple. His expertise spans system programming, OS internals, internationalization, and source-code tooling, with a track record of shipping embedded and infrastructure software used by millions (notably software running on the London Central Line). Jarkko blends research-era rigor from Nokia Research and Helsinki University of Technology with entrepreneurial practice as founder of Bittialasin Oy. He is particularly skilled at getting complex code to run on non-mainstream platforms, a discipline that improves robustness across ecosystems. Based in Helsinki, he continues to influence both proprietary and open-source stacks through architecture and hands-on implementation.
30 years of coding experience
30 years of employment as a software developer
MSc, Computer Science, MSc, Computer Science at Teknillinen korkeakoulu-Tekniska högskolan
Github Skills (120)
programming-language10
perl10
compiler10
macros10
cpan10
odin10
parrot9
scalar9
hash9
dynamic-languages9
hash-functions9
perl-module9
binary-serialization9
digest9
hashmap9
Programming languages (8)
Github contributions (5)
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