Simon Lumikello

Simon Lumikello
1987
Jyväskylä, Finland
PetrSU, Information Systems and Technologies
English (proficient), Finnish (basic)

Software engineer with over 15 years of experience working on Valmet IQ Machine Vision

I’ve spent most of my time on UI development, leading the transition of our UI from Java to React and building our product’s API from the ground up using the OpenAPI specification.

Over the years, my work has covered many other areas — from tracking down bugs in server-side code to designing and implementing entirely new sub-products, maintaining internal tools and CI/CD pipelines, improving team-wide workflows and infrastructure.

My current tech stack: React, OpenAPI, and .NET; in hobby projects — Next.js, Supabase and Vercel. In the past, I’ve worked with a wide range of technologies, from ActionScript in Macromedia Flash (the good old days) and PHP to Java and Flutter. I’ve also built and released several Android apps.

I’ve been developing software since long before AI, but recently I’ve found effective ways to bring AI tools into my existing workflows and make them genuinely useful.

Tech/skills

Mentoring
Roadmapping
Solution design
Code reviews
Field support

Timeline

Pet projects

Jaksa! Jaksa!

https://jaksajaksa.com
No-nonsense gym workout planner and tracker
2026

loma loma!

https://loma.one
Cheap flight finder and route explorer
2025
This page on GitHub