Kai-markus Lehtimäki
CEO & Founder at Waltti Solutions Oy
Jyväskylä, Mainland Finland
Summary
👤
Senior🎓
Top SchoolKai-markus Lehtimäki is a hands-on founder and CEO with nine years of software experience who built Gnonce to simplify the freelance journey for developers and now leads a tight-knit community of experts delivering over €1M in annual revenue. He combines entrepreneurial instincts with deep integration and cloud architecture skills, having driven API and integration strategies for major Finnish public services and designed AWS and Kubernetes solutions for high-volume systems. Comfortable from board-level strategy to developer tooling, he champions developer-centric productization, mentorship and risk-sharing models that make freelance careers less intimidating. Based in Jyväskylä, he frequently operates as a freelance subcontractor through Gnonce, blending client-facing architecture roles with community-driven coaching and peer support. An early IoT and smart-contract researcher, he brings a pragmatic mix of prototyping experience and production-grade engineering to every project.
9 years of coding experience
7 years of employment as a software developer
Bachelor's degree Information Systems Economics, Bachelor's degree Information Systems Economics at University of Jyväskylä
English, Finnish
Github Skills (13)
gatsbyjs7
react5
expressjs5
styled-components5
typescript4
gatsby4
blockchain3
nodejs3
typeorm2
ethereum2
certificate2
ipfs2
smart-contracts2
Programming languages (2)
Github contributions (5)
gnonce/expressjs-starter-gnonce
Jan 2020 - Oct 2021
Node.js + Express.js + Typescript = 💖
Contributions:13 commits, 6 PRs, 9 pushes in 1 year 9 months
expressjstypeormnode-jsexpressexpress-js
q1kka/notarization-service
Jan 2019 - Oct 2023
This microservice is used to notarize text or files in distributed and immutable fashion using Ethereum smart contracts & IPFS. Software is used as part of tamper proof study certificate system.
Contributions:6 pushes in 4 years 9 months
ipfsethereumblockchainimmutablesmart-contracts
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