Jarkko Laine
Lead Developer at Selma Finance
Kangasala, Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolJarkko Laine is a Lead Developer with 22 years of experience helping companies and teams improve code, developer capability, and product outcomes. Based in Kangasala, Finland, he blends hands-on engineering with entrepreneurial leadership as Lead Developer at Selma Finance and co-founder of Bear Metal, while running his design and consultancy firm O'Design. His background includes senior engineering roles at HubTran and Wildfire Interactive, reflecting deep practical experience across startups and scale-ups. Trained at ETH Zürich, he combines technical rigor with a practitioner’s focus on shipping reliable systems and mentoring engineering teams. Less obvious: alongside leadership duties he frequently toggles between strategic architecture and day-to-day coding, making him equally comfortable refactoring a legacy codebase or prototyping new features.
22 years of coding experience
4 years of employment as a software developer
Tampere University of TechnologyMSc, MSc at ETH ZürichMatriculation Exam, Matriculation Exam at Aurajoen lukio
English, Swedish, Finnish, German
Stackoverflow
116reputation
5kreached
3answers
0questions
Github Skills (131)
factor-authentication10
sign-in-with-apple9
factor9
authentication8
rspec8
two-factor-authentication8
rails8
testing7
error-reporting7
ruby7
ruby-on-rails7
irr7
validation7
xirr7
spree7
Programming languages (8)
Github contributions (5)
jarkko/5k_timer
May 2015 - May 2019
Simple result service web app for RubyConf 5k
Contributions:1 PR, 7 pushes in 4 years
ruby-on-railsrailsrubyrubyconfweb-service
jarkko/teamgeist
Mar 2009 - Jun 2010
Contributions:39 commits in 1 year 2 months
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