Rainer Koirikivi
Minister Of Software Development at Undocumented Features Oy
Oulu, North Ostrobothnia, Finland
Summary
👤
Senior🎓
Top SchoolRainer Koirikivi is a seasoned software engineer and entrepreneur with 12 years of experience building backends, full‑stack web apps and distributed systems from Oulu, Finland. As Minister of Software Development at Interjektio and founder of Undocumented Features, he architects Ethereum-smart-contract integrations and backend services in Python and TypeScript, pairing Solidity work with production-grade Python stacks (Pyramid/Django, SQLAlchemy, PostgreSQL). He has led development teams at TokenMarket and delivered systems spanning low-level languages to modern web frameworks, reflecting a rare comfort across assembly, C/C++, Scala and React. Known for pragmatic architecture and hands-on coding, Rainer blends deep protocol-level interest with product-focused delivery and a history of freelance and teaching roles that sharpen his ability to explain complex ideas.
13 years of coding experience
9 years of employment as a software developer
Bachelor of Science, Computer Science, Bachelor of Science, Computer Science at University of OuluInternational Baccalaureate Diploma, International Baccalaureate Diploma at Oulun Lyseon Lukio (IB)
English, Finnish, German, Japanese, Swedish
Stackoverflow
751reputation
19kreached
5answers
0questions
Github Skills (96)
smart-contracts9
blockchain-api9
ethereum9
walletconnect8
api8
solidity8
javascript8
dex8
blockchain8
erc208
bitcoin8
full-stack8
debugging8
erc7217
opengl7
Programming languages (9)
Github contributions (5)
DistributedCollective/bidirectional-fastbtc
Aug 2021 - Nov 2022
V5+ iteration of FastBTC with rBTC->BTC transfers
Contributions:1 review, 305 commits, 22 PRs in 1 year 3 months
transfersbtciteration
koirikivi/brainfuck
Apr 2015 - Nov 2019
Contributions:15 commits, 12 pushes, 1 branch in 4 years 8 months
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