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

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: Rewarded Solutions


The Rewarded Solutions Team creates unique software solutions for app and game developers with a focus on putting the end-users’ needs first. Instead of traditional monetization mechanisms, Playtime is an engaging experience in which users can play and earn rewards for various new mobile games. To predict which mobile game will best suit a user, our product incorporates algorithms powered by machine learning.


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 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.


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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What You Should Know About Software Developer - Working Student (f/m/d), AppLike Group

Are you ready to launch your career as a Software Developer - Working Student (f/m/d) in Hamburg with adjoe? Join our dynamic team at adjoe, a leading mobile ad platform that’s pushing the boundaries of advertising and monetization. Here, we focus on creating rewarding experiences for users, enabling them to engage with games while earning rewards. As a member of the Rewarded Solutions Team, you'll collaborate on projects that utilize advanced tech stacks and machine learning algorithms to craft innovative software solutions for app developers. Your role will involve improving our scalable Golang backend hosted on AWS, maintaining our Android mobile SDKs written in Java and Kotlin, and supporting the development of microservices. Imagine contributing to a platform that reliably handles over 200 million users daily! You’ll work in a flexible environment, balancing university studies with hands-on experience in a thriving tech ecosystem. If you’re enrolled in a Computer Science or related program, proficient in programming languages like Java, Go, and Kotlin, and possess a good command of English, we want you on our team! Plus, enjoy fantastic benefits such as 30 vacation days, a hybrid work model, and a vibrant office with a view of Alster Lake. At adjoe, we celebrate creativity and dedication while ensuring that your professional journey is as rewarding as the experiences you create for our users. Do you have a passion for technology and a desire to make a meaningful impact? Then this opportunity is for you!

Frequently Asked Questions (FAQs) for Software Developer - Working Student (f/m/d) Role at AppLike Group
What are the main responsibilities of a Software Developer - Working Student at adjoe?

As a Software Developer - Working Student at adjoe, your main duties will include building and improving the Golang backend that powers our engaging mobile ad platform, maintaining our Android SDKs, and helping with bug fixes and feature implementations. You’ll be a crucial part of a team dedicated to providing a stable backend that serves over 200 million users, collaborating on various projects that leverage cutting-edge technologies.

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What skills are required for the Software Developer - Working Student position at adjoe?

Candidates for the Software Developer - Working Student role at adjoe should have proficiency in high-level programming languages such as Java, Golang, and Kotlin. Additionally, it's important to have a solid understanding of software development principles and a willingness to learn and adapt. Being enrolled in a Computer Science or related field is also a primary requirement, alongside strong English communication skills to collaborate effectively with the team.

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Is prior work experience necessary for the Software Developer - Working Student role at adjoe?

No prior work experience is strictly necessary for the Software Developer - Working Student position at adjoe, but having experience with programming projects, internships, or relevant coursework can be advantageous. This opportunity is designed especially for students who are keen to gain practical experience while pursuing their studies, so a strong enthusiasm for learning and working in a team is key.

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What kind of projects can I expect to work on as a Software Developer - Working Student at adjoe?

As a Software Developer - Working Student at adjoe, you can look forward to engaging in a variety of projects that include enhancing our scalable Golang backend, developing mobile SDKs for Android, and building modern dashboards using React (TypeScript). You'll be directly involved in creating solutions that facilitate rewarding experiences for users while ensuring optimal performance and reliability across our platform.

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What benefits does adjoe offer to Software Developer - Working Students?

At adjoe, Software Developer - Working Students enjoy a range of benefits, including 30 vacation days, flexible working hours, and the ability to work in a hybrid setup. Additional perks include mental health support, access to a well-equipped in-house gym, and opportunities to participate in regular team events and hackathons. Our work environment is designed to promote both personal and professional growth.

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Common Interview Questions for Software Developer - Working Student (f/m/d)
Can you describe your experience with programming languages such as Java, Golang, or Kotlin?

In your response, be sure to highlight specific projects where you've applied these languages, what challenges you faced, and how you overcame them. Mention any coursework or personal projects that demonstrate your proficiency and passion for software development.

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How do you approach debugging and troubleshooting code issues?

Discuss your systematic approach to debugging, including how you use tools and logs to identify problems. Provide an example of a specific issue you encountered, the steps you took to resolve it, and what you learned from the process.

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What is your understanding of microservices architecture, and have you worked with it before?

Explain the concept of microservices architecture and its benefits, such as scalability and flexibility. If you have relevant experience, share specific projects or tasks where you've implemented microservices, discussing the technologies you used and the outcomes achieved.

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How do you keep up with the latest trends and technologies in software development?

Talk about the resources you utilize to stay informed, such as blogs, online courses, or tech communities. Mention any recent trends that excite you, and how you integrate new knowledge into your coding practices or personal projects.

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What do you believe is important when developing software for scalability?

Emphasize the importance of writing clean, efficient code, conducting thorough testing, and utilizing appropriate architecture and design patterns. Discuss how planning for scalability from the outset can positively impact user experience and system performance.

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Can you discuss any challenging project you've been involved in and how you contributed?

Select a project that showcases both your technical skills and teamwork. Describe your role, the challenges faced, the solutions developed, and the positive outcome. Highlight your ability to adapt and work collaboratively with your peers.

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What tools and frameworks are you proficient in, and how have you used them?

List tools and frameworks related to Golang, Android development, or web technologies you've worked with. Provide practical examples of how you've utilized them in past projects, focusing on their impact on your development process.

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Describe a time when you had to learn a new technology quickly. How did you manage?

Share a specific instance where you needed to learn a new technology in a short time frame. Discuss the resources you leveraged, how you structured your learning process, and how you successfully applied that knowledge in a project.

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What attracts you to the Software Developer - Working Student position at adjoe?

Express your enthusiasm for adjoe’s innovative environment and the unique opportunity to work on projects that have a real-world impact. Highlight aspects of the company’s mission, team culture, or specific technologies that appeal to you.

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How do you prioritize tasks and manage your time effectively while balancing studies and work?

Explain your approach to time management, including any tools or techniques you use to keep organized. Provide examples of how you've successfully balanced multiple commitments in the past, showcasing your proactive mindset.

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Internship, hybrid
DATE POSTED
March 29, 2025

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