You'll own ad monetization across JustPlay and Gimica Games (9-figure annual revenue) - managing waterfalls, driving ad partner relationships, and pushing ad product innovation forward. After onboarding, this isn't a support role. You'll have real ownership, autonomy, and the expectation to leverage AI to move faster than a traditional team ever could.

Job Requirements

1+ year in mobile ad monetization (or less if you learn unusually fast)
Solid understanding of mobile gaming economics and waterfall optimization
You dig into data obsessively but hate doing the same manual thing twice — you'd rather automate it
You already use AI tools daily in your work, not because someone told you to
You thrive with goals and trust, not daily task lists
Fluent in written and spoken English

Job Responsibilities

Own ad monetization strategy and revenue across the mobile games portfolio
Manage bidding and waterfall configurations in MAX Mediation - experiment freely, ship fast
Negotiate commercial deals with ad partners and resolve technical issues (SDK updates, discrepancies, creative quality)
Build and automate ad performance reporting (eCPM, ARPDAU, IMPDAU) - use AI, scripts, whatever gets you there fastest
Collaborate cross-functionally to optimize ad product monetization
Proactively bring new ideas - ad formats, mediation tactics, AI workflows that save the team hours

This role isn't for you if

You need detailed instructions for every task
You're uncomfortable making decisions with incomplete information
You see AI as a buzzword, not a daily tool

Job benefits

Work-Life Balance and Flexibility: Flexible working hours and options for digital nomads, occasional office visitors, or regular office-goers
Mental Health Support: Free personal coaching through our partner nilo.health to support our team members to live fulfilled lives at home and at work
Training & Development: A competitive personal development budget of up to 2000€/year for training, conferences, workshops, etc.
Germany-Based Benefits: 25 vacation days, free Wellhub gold subscription, free monthly Deutschland-Ticket, and a monthly €50 tax-free internet contribution
State-of-the-Art Equipment: Doesn’t matter if you are a MacBook or Windows user; we will provide you with the technical gear you need to succeed
A Relocation Package: Includes visa support for those who need it
Berlin Office Perks: Ergonomic setup, free daily lunch, and a dog-friendly environment.
Engaging and Diverse Work Environment: Join a diverse team, with over 30 nationalities working from over 25 different locations

* Benefits may vary depending on location and contract type. Do not hesitate to ask us about more details on our benefits offer.

About Us

Come join the team building the engine behind rewarded mobile gaming – making playtime truly rewarding. At JustPlay, we’re on a mission to power a fairer, more sustainable rewarded gaming ecosystem where users earn real value for their time through a self-sustaining model.

Since launching in 2020, we’ve grown into one of the world’s leading rewarded gaming platforms, with 25M+ downloads and 500K+ daily active users. Headquartered in Berlin and backed by NCSoft, one of the world’s leading gaming companies, we continue to operate fully independently – combining the speed, ownership, and ambition of a startup with the long-term backing of a global gaming powerhouse.

With a team across 20+ countries, we’re shaping a major shift in mobile gaming – and it’s still early enough for you to make your mark. At JustPlay, you’ll build end-to-end, move fast, and ship work that reaches millions – in a company that’s profitable, built to last, and focused on outcomes over hype.

JustPlay

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