Joni Mettälä
Software Developer at Twoday
Tampere, Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolJoni Mettälä is a versatile software developer based in Tampere with 11 years of industry experience and six years focused on B2B SaaS and public-sector projects. He builds full-stack solutions (React, TypeScript, Java/Kotlin, Node.js) and has deep experience in integrations, accessibility, and cloud services (AWS, Firebase). Joni has operated at the intersection of development, business, and customer support—acting as sole technical support specialist and automating support workflows with AI-powered multi-agent systems. He’s comfortable shipping features, debugging integrations and databases, and administering multi-brand Zendesk environments while improving developer and organizational learning. Joni’s practical blend of product-facing support work and full-stack engineering makes him especially effective at turning customer issues into lasting technical improvements.
11 years of coding experience
6 years of employment as a software developer
Bachelor of Business Administration - BBA, Business Information Systems, Bachelor of Business Administration - BBA, Business Information Systems at Tampere University of Applied SciencesComputer Science and Engineering, Computer Science and Engineering at University of OuluMaster of Science - MS, Information and Knowledge Management, Master of Science - MS, Information and Knowledge Management at Tampere UniversityGraduate, Graduate at Kangasala Upper Secondary School
Stackoverflow
21reputation
601reached
2answers
0questions
Github Skills (40)
web-application10
technical-writing10
android10
coder10
react10
angular-app9
javascript9
gitpod9
web-development9
strava8
explore8
gistbox8
sendgrid8
discord8
django7
Programming languages (4)
Github contributions (5)
jonimettala/weather-app
Feb 2019 - May 2024
Contributions:7 PRs, 45 pushes, 7 branches in 5 years 4 months
jonimettala/discord-announcer-web
May 2018 - Feb 2022
An Angular app for sending messages to Discord via Discord's API.
Contributions:6 releases, 7 commits, 18 pushes in 3 years 10 months
apiangular-appdiscordapi-ssending
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