Software Developer (Full Stack)

Zadaa is the world’s first marketplace that has made selling and buying secondhand fashion as simple as in an online store. Sellers just sell, ship and get paid. Buyers just buy, receive and wear it.

Do you want to be part of something new? Are you excited about developing technical solutions that will change the whole C2C marketplace industry online? Are you excited about fast-growing startups that can offer you new challenges and experiences like nowhere else? If your answer to the above is yes, you might be looking at your dream job.


Zadaa has built a revolutionary solution to sell and buy secondhand online. The company’s unique technology solves three of the main issues any marketplace confronts: logistics, matching and engagement.

What makes us unique?

Zadaa’s game-changing logistics technology enables even cross border C2C shipping delivered with a single code with 25-50% cheaper price than any other competitor.

Zadaa’s matching algorithm results in only having a 1,5% return rate and 4,84/5 star customer satisfaction with our customers 88% reselling and 80% rebuying.

Since our launch in 2016 we have grown our network to more than 500.000 users and having over a million items for sale in the app.

Zadaa has solid financial backing from top European investors and is led by Forbes 30-under-30 listed founder Iiro Kormi.

Zadaa operates in three different markets – Germany, Finland and Denmark – with offices located in Helsinki and Berlin.

We are a fun bunch to work with and we are passionate about changing the whole industry!


Full ownership of developing new features meaning your mission is to bring new talent and work together with the team towards common goals.

Be part of a small, growing team, where everyone’s input and opinions really count.

Opportunity to experience and build a rapidly growing product while solving the unseen challenges that come along with constant scaling.


Strong skills in programming either via work experience or studies and hobby projects.

Experience with Amazon AWS.

Understanding of REST application design, server architecture, SQL databases and scaling fast growing applications.

Fluency in English.

Ability to work in a fast paced environment.

Interest towards learning new things and putting them into practice, big or small.

Shipping web, iOS and/or Android mobile applications is seen as an advantage.


Between our HQ in Helsinki and our growth unit team in the Berlin office we are a mixed group of people with different nationalities

People with an entrepreneurial mindset – a big part of our team have ran their own business or have been part of fast growth journeys before.

Innovators – we want to change the way people buy and sell online and we want everyone to have a say on how it gets done.

Fast – We think and execute fast and want to make Zadaa into a truly global company with the next market entries being Austria, Switzerland, France, the Netherlands and Sweden.

To apply, send us your free-form application with your CV to We can’t wait to hear from you!

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