Jarno Lonardi

Software Developer at Reaktor

Helsinki, Finland
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Summary

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Senior
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Top School
Jarno Lonardi is a Helsinki-based software developer with 11 years of experience building web applications and authentication flows using JavaScript, Node.js and C++, grounded in an MSc in Computer Science from Helsingin yliopisto. He has shipped production software at Reaktor and Haahtela, with hands-on experience improving front-end UX and token-based auth in notable open-source projects like redux-auth. Known for bridging rigorous engineering discipline with practical UX fixes, he focuses on reliable client-server interactions and is comfortable tackling both server-side rendering issues and client persistence. His background includes disciplined service in the Finnish Defence Forces, which informs a pragmatic, detail-oriented approach to system design and delivery.
code11 years of coding experience
job4 years of employment as a software developer
bookHelsingin yliopisto
languagesEnglish, Finnish, Italian, Russian
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Stackoverflow

Stats
336reputation
22kreached
14answers
0questions
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Github Skills (18)

javascript10
ui-components10
authentication10
user-authentication10
user-interface10
redux10
front-end-development10
react10
validations9
validation9
validating9
validate9
playwright6
ecmascript6
typescript6

Programming languages (7)

TypeScriptC++JavaScriptGoLuaClojurePython

Github contributions (5)

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lynndylanhurley/redux-auth

Apr 2016 - May 2016

Complete token authentication system for react + redux that supports isomorphic rendering.
Role in this project:
userFront-end Developer
Contributions:8 commits, 4 PRs, 2 comments in 9 days
Contributions summary:Jarno primarily focused on enhancing the user interface and authentication flow within the React and Redux application. They made updates to button components to handle click events, and fixed form button interactions. Several commits involved modifying the handling of credentials and token validation, addressing issues related to server-side rendering and client-side persistence. These changes improve user experience and ensure a smoother authentication process.
reactauthentication-systemtokenauthenticationreact-redux
jlonardi/node-template

May 2019 - May 2022

Ready to use template for applications using Auth0 and Postgresql
Contributions:3 PRs, 22 pushes, 4 branches in 3 years
postgresqlauth0authentication
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Jarno Lonardi - Software Developer at Reaktor