Timan Rebel
Seed Investor at NEXT Amsterdam
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolTiman Rebel is a serial founder, seed investor and CTO with 12+ years in software and over 15 years of entrepreneurial experience building startups, accelerators and innovation platforms from Amsterdam. He co-founded GroundControl to bring Innovation Accounting to enterprises and built Astrolescent and DefiPlaza in the decentralized finance space, marrying product engineering with tokenized marketplaces. Timan has a track record of founding category-defining initiatives (SB/SD was once the Netherlands’ largest youth social network) and shaping the Dutch lean-startup ecosystem through mentoring, accelerator curriculum design and hands-on coaching at Rockstart and The Next Web. He blends technical leadership with investor sensibility—providing capital, infrastructure and product strategy to early-stage teams—and recently experimented with an AI-run company, Hey, Astra!, funding and feeding the model knowledge while stepping back operationally. Known for pragmatism and repeatable processes, he helps organisations make innovation measurable, predictable and investable.
12 years of coding experience
15 years of employment as a software developer
Computer Science, Computer Science at HU University of Applied Sciences Utrecht (Hogeschool Utrecht)
Dutch, English, German
Stackoverflow
46reputation
6kreached
5answers
0questions
Github Skills (129)
taxonomy10
cryptocurrency10
sdk10
wrapping10
appcelerator-titanium10
voting10
titanium10
decentralization10
titanium-mobile10
appcelerator10
hockeyapp10
parse10
blockchain10
python9
backend9
Programming languages (10)
Github contributions (5)
OmegaSyndicate/defiplaza-website
Apr 2022 - Mar 2025
Source code of DefiPlaza's website, excluding the app
Contributions:54 PRs, 57 pushes in 2 years 11 months
reactnextjstypescript
timanrebel/HockeyApp
Mar 2014 - Feb 2019
Appcelerator Titanium module wrapping the HockeyApp SDK
Contributions:3 releases, 27 commits, 7 PRs in 4 years 11 months
titaniumandroidsdkwrappingappcelerator
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