My name is Stefan Frank. I'm a software engineer from Hamburg, Germany. Currently I'm working as exactly that at ng-voice. With strong roots in open source and a highly diverse team, the companies objective is to establish itself as a leading supplier for cloud-native, scalable and cost-effective software solutions for mobile network operators and private LTE integrators.

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 (hi@stefanfrank.eu) with information about what you are working on.

Personal Projects


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

Link: www.shirtissimo.com
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 hi@stefanfrank.eu.