Mika Koivisto
Lead Developer & Architect Finland's Largest Financial Services Group at Koivisto Consulting
Espoo, Mainland Finland
Summary
👤
Senior🎓
Top SchoolMika Koivisto is a hands-on Lead Developer and Solution Architect with 25+ years in software development and 18 years of focused industry experience, currently driving payments and regulatory APIs at Finland’s largest financial services group. He architected PSD2 Open Banking APIs that now process millions of payments monthly and helped the bank become the first Nordic institution exempted from the PSD2 fallback channel requirement. Mika unifies complex security and onboarding systems—consolidating multiple SCA flows into a single app-to-app capable solution—and standardized a mixed tech stack into a reusable Vert.x-based platform adopted across teams. His toolkit spans Java/Vert.x, JWT/OAuth2/FAPI, Kafka, Docker and hybrid AWS deployments, and he champions AI-native development with agentic GitHub Copilot workflows. An active contributor to Liferay plugins early in his career, he brings enterprise-grade SAML and identity expertise combined with pragmatic DevOps and zero-bug tolerance. Available for fintech consulting and senior roles across Europe and Southeast Asia, he balances deep technical ownership with cross-organizational standards work.
18 years of coding experience
15 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at Metropolia University of Applied SciencesComputer Science, Computer Science at Western Washington University
Finnish, English, Swedish, German
Github Skills (9)
javas10
portal10
portlet10
java10
css9
struts9
wp-theme8
wordpress-themes8
saml7
Programming languages (4)
Github contributions (5)
liferay/liferay-plugins
Jul 2007 - Mar 2016
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:35 commits in 8 years 9 months
Contributions summary:Mika primarily worked on front-end and back-end development within the Liferay plugins repository. They contributed to theme development, modifying CSS for layout adjustments and implementing struts action hooks. Additionally, the user integrated Java Security API tests and made modifications to several portlets.
mikakoivisto/controlmyspa-ha-mqtt
Oct 2021 - Jan 2023
Contributions:29 commits, 3 PRs, 27 pushes in 1 year 2 months
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