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Senior Anti-Fraud Engineer (AdTech & Mobile Security)

adjoe • Germany
Relocation
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Lead the development of fraud detection systems for mobile adtech, ensuring authentic user interactions and publisher protection. Investigate complex fraud patterns, debug microservices, and deploy AI-driven solutions to mitigate risks at scale. Collaborate cross-functionally to maintain platform integrity for 770M+ users.

Key Highlights
Protect 770M+ users from fraudulent adtech activities (click farms, fake installs, SDK spoofing) using AI and real-time telemetry.
Own end-to-end fraud investigations, root-cause analysis, and technical fixes for publisher margin protection.
Debug microservices, Kafka/SQS pipelines, and Go-based systems while leveraging AI for real-time fraud detection.
Key Responsibilities
Develop and maintain fraud detection systems for mobile adtech, analyzing billions of daily events in real time.
Investigate complex fraud patterns (e.g., click farms, emulator farms) and propose technical mitigations for publisher teams.
Debug microservices, Kafka/SQS pipelines, and Go-based systems using Kibana, Grafana, and profiling tools (Pyroscope, pprof).
Collaborate with Backend, Mobile, and Data Science teams to deploy AI-driven fraud detection rules and fixes.
Act as the primary technical point of contact for Support, Sales, and BI teams on fraud escalations.
Technical Skills Required
Go (Golang) AWS Cloud Infrastructure SQL Querying (Trino, ScyllaDB, DynamoDB)
Benefits & Perks
Relocation support to Hamburg, Germany
Global team with diverse backgrounds (40+ countries)
Impactful work scaling to 770M users
Nice to Have
Experience with mobile game fraud (e.g., cheats, exploits).
Exposure to iOS/Android SDK attribution and monetization ecosystems.
Knowledge of Xposed frameworks, Magisk modules, or jailbreak detection.

Job Description

builds the technologies behind mobile apps growth and monetization. With our core product , we’ve become the global leader in rewarded advertising, an ad unit built on a simple premise: users earn real in-app rewards for engaging with new apps. The result is one of the most effective value exchanges in adtech, connecting advertisers and publishers with over 770 million users annually.
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