Marcus WibergProduct Leader & Design Engineer
Chief Product & Design Officer at Rimthan
Founder turned product leader. I take products from zero to one and on to global scale, hands‑on from research to code.
- Years building products
- 16+
- Ventures and products built
- 15+
- Peak revenue, global e-commerce
- €401M
- Founder capital raised
- $2.4M+
Hands-on
I lead product and still build working software.
AI agents build in parallel while I set the bar and judge every change. I also fine-tune on‑device AI models and test them blind.
Follow along on GitHub- Commits in the last 30 days
- 2,900+
- Pull requests merged since May 2026
- 1,000+
- GitHub contributions in 13 weeks
- 5,920
- Days active
- 84 of 90
Skills library
The skills I work with, open source.
The same skills behind my agentic loops and workflows.
Install them in one line.
$ npx skills add bymw/mstackSelected work
Products I have helped shape and build.
A selection of product work across stages, from early prototypes to products operating at global scale.
Rimthan · Digital Bank
Venture Building · AI / GCC
Rimthan · Mobility
Venture Building · AI / GCC
Marley Spoon · Meal-kit Platform
Subscription Commerce · Global E-commerce
Marley Spoon · Web Orders
Subscription Commerce · Global E-commerce
Healthtrackr · Partner Lab
Health · Preventive Diagnostics
Healthtrackr · Landing Page
Health · Preventive Diagnostics
Healthtrackr · Biomarkers
Health · Preventive Diagnostics
LivingPackets · Smart Packaging
Logistics · IoT / Smart Packaging
Matmatch · Materials Platform
Engineering · B2B Marketplace
Mika · Digital Therapeutic
Digital Therapeutics · Oncology
Rimthan · AI Recruiting
Venture Building · AI / GCC
Rimthan · Workforce Onboarding
Venture Building · AI / GCC
Socialmist · Profile
Social Media · Music / UGC
Socialmist · Video Editor
Social Media · Music / UGC
Switchplace · Apartment Swap
PropTech · Marketplace
01 / 15
Industries
Products and teams built across regulated, consumer, and marketplace businesses.
From early ventures to global scale.
- Fintech
- E-commerce
- Mobility
- Health
- Proptech
- HR Tech
- Logistics
Testimonials
What it is like to work together.
Words from engineers, founders, designers, and product peers I have worked with closely across teams and companies.
Engineering
Marcus has an unbelievable drive and ambition paired with fantastic attention to detail. He's a quick learner, and our constructive discussions were often the highlight of my day.
Christian UhlDirector of Engineering, Conrad ElectronicFormerly PersonioFounder
Marcus has a rare combination of product vision, great communication skills, patience, and contagious passion. All this makes him the kind of leader people naturally want to work with.
Maciej ŁobodzińskiFounder & CEO, stoic.Y Combinator S19Product
In discussions where everyone had an opinion, Marcus would pull the conversation back to what we actually knew about the customer. I learned a lot about product judgment just from being in the room.
Alishah MohbataSenior Product Manager, doinstructFormerly Contentful & Marley SpoonDesign
Marcus was my daily partner throughout the design process. His ability to make fast, effective decisions and passionately lead teams is a testament to his creativity and drive.
Toto CastiglioneCreative Operations, AutomatticFormerly Netguru
Currently
Current role
Chief Product & Design Officer at Rimthan
An AI-first corporate venture builder.
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rimthan.com