Hi, I’m Julien. On this site I share about hardware product development and manufacturing in China.

📍 Shenzhen & Hong Kong

👨‍🏭 My Work

I work with engineers and factories in China to build innovative and high-quality products.

It gave me the hands-on experience for all necessary steps to bring ideas to mass-manufactured products.

🔎 My Role

I’m currently Founder in Residence at Entrepreneur First.

As a former Head of Hardware Product at Soundbrenner, I lead all processes and manufacturing operations of our products from the concept phase to mass production.

🚀 From the idea to shipping

I share about the essential steps to build a product from the concept phase to mass production, illustrated with simple pictures. Check it out! 👇

A few milestones


devices shipped

$1.5M US

raised on Kickstarter


monthly app active users

Who I Am?


After my Master of Engineering in Paris, I moved to Asia in 2016 to join Soundbrenner’s cofounders as the 1st engineer hired in the Hong Kong headquarters.

I have more than 7 years of experience in hardware product development, with deep insights into manufacturing and data analytics, as well as in leading teams of engineers and manufacturers in China.


I spend my evenings learning about new technologies that could impact our lives and sharing what I learn through workshops. I also enjoy playing drums with my bands 🥁


Reach out to me for any inquiry at [email protected] about a collaboration, or simply say hello.

You can also connect with me on:

Check out my case study 👇