Salary Competitive

Android developer for fast-growing 2nd hand platform 

Trendsales is all about sustainable shopping and our mission is to make buying and selling secondhand as easy and secure as possible.

We are the biggest transactional secondhand platform in Denmark, and have built a strong business, but we have much bigger plans.

We are therefore looking for an experienced Android developer to take the helm of our Android app and help bring it to the next level.


You will be our sole Android developer, but you will work in close cooperation with fellow iOS, web and backend developers (backend entirely written in Java), designers, product managers and CTO. You will be pitching ideas, writing code, challenging backend API’s and identifying and fixing any issues our users are experiencing.

Our product team is small, so focus is to keep things simple on all levels. The Android app was originally written in Java, but during the last year many parts have been moved to Kotlin. The app communicates with the backend using standard Rest API-calls. 

We have a clear high-level roadmap for 2023, but many important details are missing. This leaves great room for you to set your mark on the journey ahead.

To give you a sense of what kinds of tasks and features you will be building, here is a list of some of our recent accomplishments:

  • Transformed the entire platform from a primarily communication platform into a fully transactional platform with integrated shipping and escrow payments

  • Introduced split payments

  • Created a fully customizable main feed

  • Added GIft cards to our checkout flow


We are looking for a candidate who knows the ins and outs of the Android platform, the surrounding tools and is ready for similar challenges as listed above. 

We don't expect you to know all answers up front, but having a strong understanding of software development, troubleshooting and teamwork will take you far. 

You pay attention to the Android ecosystem and Java + Kotlin.

We expect you to help set goals and execute them and we will offer our strongest support in helping you achieve those goals.

You might have a computer science background or similar, or you might not. What is most important to us, is your abilities and your commitment. 


We expect you to work from our office in central Copenhagen minimum 1-3 days per week on average as we value the energy derived from regular physical meetups. The rest of the time you are free to work from home.

For more information or questions please contact us at

Perks and benefits

This job comes with several perks and benefits

Flexible working hours
Flexible working hours

Free coffee / tea
Free coffee / tea

Near public transit
Near public transit

Social gatherings
Social gatherings

Free office snacks
Free office snacks

Free friday beers
Free friday beers

See all 12 benefits

Working at

At Trendsales, we are committed to making 2nd the preferred way of shopping. Every day we work on making it ever cheaper and more convenient for buyers and sellers – good for our users and for the planet. We love to have fun. Not teenage-giggly fun, not dad-joke-fun. We just like to challenge the pretentious fashion industry and support our users in pushing the boundaries for fashion and free them from dress code dogmas. We want them to find their own unique style using our great platforms and flea markets. We applaud everyone who chooses a more sustainable way of shopping and we do our part as a company. We are a team of about 60 passionate product-, support- and marketing professionals and we can't wait to hear from you.

Read more about Trendsales

company gallery image