Siebe Hiemstra
Freelance Product Manager & Discovery Engineer at Phase0
Eindhoven, North Brabant, Netherlands
Summary
👤
Senior🎓
Top SchoolSiebe Hiemstra is a freelance Product Manager and Discovery Engineer with 12 years of experience turning ambiguous ideas into working 0–1 products, combining hands-on engineering with product leadership. He excels at rapid prototyping, MVP development, and validating technical feasibility across front-end (React/Vue), back-end (Node/C#/Python), mobile (Flutter/React Native) and no-code platforms. Built and led engineering teams focused on discovery and proof-of-concepts, and has repeatedly launched new apps and membership programs for early-stage ventures and agencies. Based in Eindhoven, he pairs marketing-technology fluency (Shopware/Shopify integrations, marketing automation) with practical delivery skills like web scraping and smart integrations. Clients hire him when they’re unsure whether—or how—to build something, and he’s known for turning messy requirements into clear, testable product directions. An under-the-radar strength is his ability to bridge pre-sales and technical validation, reducing risk before teams commit to full-scale builds.
12 years of coding experience
22 years of employment as a software developer
Bachelor's degree Communication, Bachelor's degree Communication at Fontys University of Applied SciencesInteraction Design, Interaction Design at Eindhovense School
English, Dutch, northern frisian, French, German, Spanish
Github Skills (114)
starter-kit10
scaffolding10
mason10
boilerplate10
nightwatch9
mod-manager9
javascript9
assetbundle9
browser9
sdk9
hono9
api9
screeps9
jotai9
service-worker9
Programming languages (4)
Github contributions (5)
codeorelse/formagical.JS
May 2014 - Sep 2016
Contributions:57 commits, 38 pushes, 7 branches in 2 years 5 months
codeorelse/react-starter-kit
Feb 2016 - Feb 2016
Contributions:16 pushes, 4 branches in 1 day
browsersyncbuilt-with-reactexpressweb-applicationpostcss
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