Backend Engineer (S2S Events, Meta CAPI, AppsFlyer/Adjust, Anti-Fraud)

We are building an event-processing backend for a mobile app 

The system must receive webhooks, validate and filter events, and forward data via server-to-server integrations (Meta CAPI, AppsFlyer S2S, RevenueCat).

Responsibilities

• Build and support S2S event pipelines
• Integrate with Meta Conversion API
• Integrate with AppsFlyer S2S / Adjust S2S
• Process webhooks (RevenueCat, Firebase, external partners)
• Validate, normalize, deduplicate events
• Implement anti-fraud logic (rate limits, IP/device checks, duplicates)