Our Adtech Jobs

Go Backend 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
  • Contribute to the development of our backend written +99% in Go and maintain our microservice architecture used to communicate with our frontend (based on TypeScript React). To do this, you’ll use event buses like Kafka, SQS/SNS, and Kinesis in order to have reliable asynchronous microservice communication. 
  • Work in a community of developers with whom you’ll share knowledge and contribute to peer code reviews.
  • Continuously search for ways to decrease the API response time for complex queries – we work with a few hundred terabytes of data.
  • Support partners by providing them with raw or aggregated data based on their business needs – we believe in data transparency and well-documented open APIs.
  • Collaborate with our Data Science team to solve complex math problems used to optimize our ML algorithms that are dedicated to delivering the right ads to the right users and integrate their solutions into adjoe’s application.
  • Be responsible for collecting the billions of daily API events and aggregating them in our Kafka and Kinesis streams with the goal of querying them from the data lake in a matter of seconds.
  • Learn in a supportive environment that refines your potential and gives your career a solid foundation.
  • Be part of an international English-speaking team dedicated to scaling our adtech platform beyond our hundreds of millions of monthly active users. 
  • Who you are
  • You have gained experience working in software development.
  • You are a technology nerd and are able to get involved in new, complex topics quickly.
  • You have already built web applications in Go.
  • You have knowledge about databases and a basic understanding of Regular Expressions, HTTP protocol and Encoding.
  • You have experience working with infrastructure as code (Terraform), Docker and serverless infrastructure is a plus.
  • You are open to relocating to Hamburg, Germany.
  • Heard of Our Perks?
  • Tech Package: Create game-changing technologies and work with the newest technologies out there.
  • Work–Life Package: Work remotely for 2 days per week, enjoy flexible working hours and 30 vacation days, modern office in the city center, dog-friendly.
  • Relocation Package: Receive visa and legal support, a generous relocation subsidy, and free German classes in the office.
  • Never-Go-Hungry Package: Graze on regular company and team lunches, free breakfasts, and a selection of free snacks and drinks.
  • Health Package: Free in-house gym, biweekly yoga classes
  • Activity Package: Enjoy a host of team events, hackathons, and company trips.
  • Career Growth Package: Dedicated growth budget to attend relevant conferences and online seminars of your choosing
  • Wealth Building: Virtual stock options
  • 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.

    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!
    Contact Us

    How We Hire

    Most people spend around one-third of their life at work. So, it’s our priority to build a healthy and purpose-centric culture based on our most important company values and what our people want.
    Life at adjoe

    Tech Team

    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.
    Have a 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.

    Business Team

    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.
    Have a 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.
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    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
    Explore the adjoe culture

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