Join Our Team

Check out the open positions, find out more about us and let's meet.

"Don't stop until you're proud."

Here at Cobalt Sign we enjoy creating apps, software development and but first of all we enjoy our time together at the office.

You can take a look at our Instagram feed to get a glimpse of our company culture, meet us – the “alchemists” – and browse the portfolio to see some of our work. If you agree with our motto “Don’t stop until you’re proud”, drop us a line.

Career Opportunities

Mobile App Developer

iOS & Android


We are looking for an iOS developer to join our team.

QA Engineer

iOS & Android


We have no open positions at the moment.

Project Manager

iOS & Android


We have no open positions at the moment.


Learn to Develop iOS & Android Apps

Are you a student looking for a cool summer challenge? Each year, during the summer internship program, we’ll be creating an iOS & Android app for an NGO.

We believe it is only fair that unpaid internships should not be taken advantage of, so we use this time & effort to contribute to the community and help NGOs.

Apply to our 2020 internship program to learn app development from our experienced team and work on real-life projects.

You can apply to our internship program by sending your CV. The window period for sending an application will open in spring. 📱

Find out more about the internship program below. 👇

Our Company Culture


We enjoy sharing our passion for mobile app development. We created Hello App, a free app development course for students, already at the 6th edition.


We are fond of Japanese culture, mindfulness and our Zen Room & Holiday Room, our own cozy places to relax, chat and enjoy games, music & movies.


We enjoy travelling, so our team-buildings are about visiting European capitals, having new experiences and seeing new places & new cultures.

Cobalt Matters

Internal, technical, but very casual workshops and discussions to share the knowledge.

Cobalt Friday

We enjoy taking “zen time” with fruits and talks about apps we love and latest mobile tech trends.

Treats & Celebrations

Spontaneous company breakfasts, lunches, dinners, drinks, movies & whatever we feel like.

Gadgets, Tea & Coffee

Plenty of office gadgets, smartphones, probably the best teas in town and really good coffee.