applike group

Software Developer - Working Student (f/m/d)

Sorry, this job was removed at 06:48 p.m. (CST) on Monday, Jun 23, 2025

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Hamburg

Hybrid

AdTech

The Role

adjoe is redefining the future of mobile ads. Powered by advanced AI, first-party data and world-class engineers, we’ve perfected the offerwall experience for monetizing and scaling app publishers with solutions like Playtime and Arcade – now the fastest growing rewarded advertising channel globally – driving incremental engagement, retention, and revenue. At the same time, we’re breaking into programmatic advertising with the intelligent bidding system of adjoe Ads. Together, this ecosystem connects app developers to over 600 million users worldwide for scalable growth. Backed by a $100 million investment from Bertelsmann and operating from offices in Hamburg, Boston, Singapore, and Tokyo, adjoe is defining the next stages of app and ad experience – right now. Join us.

Meet Your Team: Rewarded Solutions

Our Rewarded Solutions team develops the technology behind adjoe's innovative rewarded engagement products that serve over 57 million daily mobile users.

The team’s tech stack consists of three major components: native Android and iOS SDKs written in Java/Kotlin and Swift handling complex engagement flows; widely customizable offerwall applications built with React TypeScript; and a highly performant Golang backend hosted on AWS that processes millions of events hourly. Our system matches each game with its ideal users, delivering rewards optimized for satisfaction through data processed via AWS Athena, Kafka, Spark, S3, and MySQL.

For team members, this means having state-of-the-art resources to build engaging rewarded ad experiences that seamlessly integrate into the world’s top apps while delivering exceptional results for advertisers and monetizers in this industry-leading technology.

What Will You Do:

You will contribute to building and improving the highly scalable Golang backend hosted on AWS.
You will assist in the development and maintenance of adjoe's mobile SDKs for Android (Java/Kotlin).
You will support the development and maintenance of Golang microservices.
You will help with bug fixing and feature implementation for both mobile SDKs and backend services.
You will collaborate with the team to ensure stable operation of the backend, which handles over 200 million users.

Who You Are:

You are enrolled in a university program in Computer Science, Informatics, or a related field.
You have proficiency in high-level programming languages, e.g., Java, Go, Kotlin.
You have excellent command of spoken English.
You are currently based in Hamburg.

Fuel for the Journey: Benefits to Support Your Ambitions

Live Your Best Life, at Work and Beyond: We work in a hybrid setup with 3 core office days, plus flexible working hours. Enjoy 30 vacation days, 3 weeks of remote work per year, and free access to an in-house gym with lots of different fitness classes and mental health support through our Employee Assistance Program (EAP).
Thrive Where You Work: Enjoy the Alster Lake view from our central office with top-notch equipment, fun open spaces, and a large variety of snacks and drinks.
Join the Community! Participate in regular team and company events, including hackathons and social gatherings. We work together, and we celebrate together, too.

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.

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The Company

Hamburg

230 Employees

Year Founded: 2015

What We Do

applike group is the leading company building in the app economy. Our technologies + businesses to cover the full value chain of the mobile apps market.

Our companies work independently, but benefit from each others’ technologies and knowledge.

We are 4 companies (JustDice, adjoe, Sunday, justtrack) under one roof of applike group.

justDice: We build exciting app-discovery products for mobile gamers. With >50 million users we are the global market leader, while still growing rapidly every day

adjoe: We build new technologies and ad formats that create a competitive edge for mobile app developers.

Sunday: We create and publish extremely engaging and addictive mobile games with smart and player-friendly monetisation

justtrack: One-stop software to automate your whole user acquisition process.

This would be inconceivable without the 3 developer teams that form the core of applike group.

We are 100 percent tech company where everybody is interested in computer science. We are always giving our best to get in touch with the newest technology in order to build the most relevant products. Our mission is to build software with the capability to distribute ads to every mobile device on earth.