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Posted Sep 16, 2026
Hamburg
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€7,000/mth
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Where 50 Billion Daily Predictions Begin
The User Experience team is the origin point of adjoe Ads. Everything the system knows about a user, every prediction the ML models make, every bid placed in an auction. It all starts with code this team ships.
The team owns two responsibilities. On the SDK side, a native Kotlin and Swift code runs inside hundreds of publisher apps. It participates in 120 million daily auctions , renders ad creatives across multiple formats, and captures the behavioral signals that power 50 billion predictions per day . The constraint that defines this work: you’re executing inside someone else’s app, on someone else’s device, with zero tolerance for instability. Every ad impression has to feel native and fast to the user.
On the analytics side, the dashboards, investigation tools, and data frameworks that turn raw data into decisions: real-time revenue performance across active campaigns, infrastructure cost visibility, and data quality assessments. If a number matters to the business or to engineering, this team makes it accessible.
Your Mission & Who We Are Looking For
We welcome applications from talent worldwide and provide relocation support to Hamburg, Germany for those ready to join our team.
What’s in It for You?
At adjoe, you’re not here to just close JIRA tickets, you’re helping build the infrastructure behind one of the most impactful platforms in adtech. The systems you work on will reach hundreds of millions of users and power billions of decisions every day.
We welcome applications from people who will contribute to the diversity of our company.
Your Work-Life Upgrade
competitive salary
up to €7000 for referred friends
discounted city commute
generous vacation days
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59 reviews
View on Glassdoor66 reviews
View on Kununu€114,000 to €116,000/yr
VOI TechnologyHamburg
Glassdoor 3.8 (257)
Broad estimate: €44,000–€75,000/year
Phorms EducationHamburg
Glassdoor 2.9 (42)Kununu 4.0 (387)
Full-time reference: €44,000–€58,000/year
Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation