Juho Saastamoinen
Senior Software Engineer, Zalando Emerging Propositions at Freelance
Helsinki, Finland
Summary
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Senior🎓
Top SchoolJuho Saastamoinen is a senior software engineer with 11 years of experience building and operating high-traffic, business-critical systems for leading European platforms like Zalando and Delivery Hero. He specializes in end-to-end system design—APIs, frontends, mobile and data ingestion pipelines—delivering features used by millions and running resilient integrations for partner ecosystems. Juho combines hands-on engineering with a background in data engineering and analytics, enabling pragmatic solutions that bridge product needs and scalable infrastructure. Based in Helsinki, he has also worked as a freelance illustrator, bringing a creative perspective to technical problem solving and user-facing features. His GitHub presence and roles across growth-stage teams reflect a developer who moves fluidly between code, systems thinking, and operational ownership.
11 years of coding experience
4 years of employment as a software developer
Basic Education Certificate, Basic Education Certificate at Lauttasaari Coeducational SchoolGeneral Upper Secondary Education, General Upper Secondary Education at Lauttasaari General Education Upper Secondary School
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (55)
threejs10
360-video10
camera10
graph9
texture9
nodejs9
player9
visual-programming8
react8
http-response8
webvr8
styled-components8
virtual-reality8
css8
javascript8
Programming languages (3)
Github contributions (5)
joukosaastamoinen/node-app-starter
Nov 2016 - Dec 2019
Contributions:35 PRs, 60 pushes, 134 branches in 3 years 2 months
joukosaastamoinen/modulib
Nov 2016 - Dec 2020
Modular synthesis with JavaScript
Contributions:79 commits, 15 pushes, 1 branch in 4 years 1 month
javascript
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