Job Description

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: Anti-Fraud Solutions
Our Anti-Fraud Solutions team tackles one of adtech’s biggest challenges: industry reports suggest 25% of global mobile ad spend is fraudulent. We’ve built sophisticated systems that actively prevent fraud from impacting our partners’ business.At the core of our solution are custom-built mobile SDKs for Android and iOS, which analyze device integrity and detect modifications like Xposed frameworks, Magisk modules or jailbroken devices. Our distributed cloud infrastructure, powered by SQS and Kafka, processes billions of daily events to flag suspicious behaviors in real time, while Go-based microservices deliver millisecond-level responses using DynamoDB as our database.For analysts interested in cheat prevention, this means working with cutting-edge tech to continuously outsmart even the most creative tactics.

What You Will Do:

• Analyse: Apply your statistical knowledge and data mining methods to research and maintain the effectiveness of the Anti-Fraud system.
• Monitor: Develop and implement KPIs and tracking mechanisms to measure and monitor fraud indicators and business metrics across complex, asynchronous user flows.
• Identify: Detect patterns, trends, and correlations in data to provide actionable recommendations for improving business performance.
• Collaborate: Work closely with business and tech teams to support their goals with robust Anti-Fraud analysis.
• Ensure: Safeguard data integrity, security, and compliance with regulations and policies.
• Learn: Be an integral part of a high-performing technical team positioned in the middle of a growing business. Share your knowledge and learn from others within a large data team.

Who You Are:

• 2+ years of experience as a Data Analyst.
• 1+ years of experience in Fraud Detection.
• Comprehensive knowledge of SQL (CTEs, joins, window functions, big data query optimization).
• Strong experience with Python (Pandas, NumPy, Plotly/Matplotlib).
• 1+ years of experience with Anomaly Detection algorithms and approaches.
• Comfortable demonstrating SQL and Python skills in a live interview without LLM assistance.


• Plus: Extensive experience with Fraud Detection systems.
• Plus: Familiarity with Power BI, Tableau, QuickSight, Streamlit, SuperSet, or similar.
• Plus: Experience with S3, Airflow, boto3, dbt, or similar.
• Plus: Background in AdTech or Mobile App analytics.

Fuel for the Journey: Benefits to Support Your Ambitions

• Invest in Your Future: Regular feedback and our development program support your growth, helping you expand your skillset and achieve your career goals.
• Easy Arrival to adjoe: From signing to settling in Hamburg, we’ve got you covered. Need a visa? No problem. Ready to build your new life and career at adjoe in Hamburg? We support every ambition—from learning German to a relocation bonus that helps you settle in and make Hamburg feel like home.
• 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.