Guten Tag!

My name is Stefan Frank. I'm a computer science student from Hamburg, Germany. Currently I'm working as a software developer for ng-voice. We offer a platform for Voice-over-LTE and fixed networks to network and mobile operators, who are searching for a flexible solution for their network.

What else?

In my non-coding past I've worked in marketing and sales for tech companies like Granify and Airbnb. After three years at Granify in Canada, I decided to restart my career and to study computer science in Hamburg.

Freelance Work

Contact me ( with information about what you are working on.

Personal Projects

Shirtissimo is an online shop for creative funshirts and one of my first projects. It was created in 2008 and redesigned in 2009.

Skills: Concept, Management, Design, Development
Tools: HTML, CSS, JavaScript, Wordpress, Photoshop, Illustrator, Google Analytics
Screens: Shop I / Shop II / Blog / Brand / Old


Since 2008 I sold more than 7.000 shirts on the European and North American marketplaces of Spreadshirt. I provide more than 600 different designs, which can be used by end consumers as well as other shop owners to create lovely shirts.

Link: Europe / North America
Skills: Concept, Design, Management
Tools: Illustrator, Photoshop
Screens: Profile / Shirts I / Shirts 2 / Bestseller / Concept


I'd love to connect with you on LinkedIn or XING.



You can contact me on the above-mentioned sites or send me an email to