Our Adtech Jobs
Senior Android Mobile Developer (f/m/d)
- adjoe
- Playtime Supply
- Full-time
adjoe is a leading mobile ad platform developing cutting-edge advertising and monetization solutions that take its app partners’ business to the next level. Part of the applike group ecosystem, adjoe is home to an advanced tech stack, powerful financial backing from Bertelsmann, and a highly motivated workforce to be reckoned with.
Meet Your Team: Playtime Supply
Playtime Supply is building a unique software solution for app and game developers that puts users’ needs first. Instead of traditional monetization mechanisms, Playtime builds an engaging ad experience in which users can play and earn rewards for various new mobile games in Playtime. To predict which mobile game will best suit a user, the team has introduced ML algorithms.
To build this rewarded experience, adjoe’s backend reliably handles more than 200 million users – remaining stable despite impressive growth in the user base. And imagine this: adjoe’s Golang event consumer applications assign rewards equivalent to 700 months’ of time spent in Playtime every day to its users.
The software depends on two main components.
1) adjoe’s Android mobile SDK – written in a combination of Java and Kotlin – which can be bundled by developers in their apps.
2) The team’s highly scalable Golang backend, which is hosted on AWS and is otherwise responsible for developing a modern React (TypeScript) dashboard that provides adjoe’s clients and Business team colleagues with fast-loading insights.
What You Will Do
Who You Are
Heard of Our Perks?
Skip writing cover letters. Tell us about your most passionate personal project, your desired salary and your earliest possible start date. We are looking forward to your application!
We welcome applications from people who will contribute to the diversity of our Company.
Who Are We Looking For?
Can’t find your fit? Send us your application anyway!
Introduce Yourself
Get to know our Hiring Manager via video chat – and they’ll get to know you.
Showcase Your Skills
Take home a case study to work on – demonstrate your technical skills.
Talk to the Team
One of our Tech or Product Leads will give you feedback on your task and see if you’re a good fit for the team.
Call with Our Co-Founders
You’ve made it this far! In this last step, adjoe’s Co-Founder Carlo Szelinsky will get to know you.
Decision Time
Our team will give the candidate most suitable for the position an offer to join adjoe.
Introduce Yourself
Get to know our Hiring Manager via video chat – and they’ll get to know you.
Showcase Your Skills
Take home a case study to work on – it might be a pitch or an Excel task.
Talk to the Team
One of our Business Leads will give you feedback on your task and see if you’re a good fit for the team.
Call with Our Co-Founders
You’ve made it this far! In this last step, adjoe’s Co-Founder Jonas Thiemann will get to know you.
Decision Time
The team will give the candidate most suitable for the position an offer to join adjoe.



Achieve Great Things – Receive Great Things
There’s more to life than work. That’s why we’re big on employee perks.
office days 3× a week
30 vacation days
quarterly hackathons
applike group parties
WFH 2× a Week
on-site gym & personal training
learning & development budget
monthly team events
3 remote weeks per year
dog-friendly office
free German classes
monthly company lunches
virtual stock option program
weekly fitness & yoga classes
cross-departmental onboarding
referral bonus up to €7,000
visa support
free snacks & drinks
mentorship program
subsidized transport ticket
Wall Of Fame
Your window into the life of adjoe employees.