Senior Backend Engineer - Commercial Systems and Intelligence

SumUp

Standort: Berlin, Germany, Germany

**Senior Backend Engineer - Commercial Systems and Intelligence at SumUp in Berlin, Germany** **What you'll do** - Aggregate data to determine acquisition channels and sales agent attribution - Establish data models and API contracts to automate commission workflows - Build Lifecycle Event Log with Merchant Intelligence squad - Develop internal backoffices and APIs for sales representatives - Define API contracts and integration patterns for other engineering teams - Establish best practices for testing, observability, and incident response **What they're looking for** - Strong backend engineering background in Go or typed-language generalist - Experience designing APIs and distributed systems with clear contracts - Fluency in relational and analytical databases (PostgreSQL, Snowflake) - Experience building Kafka-based, event-driven systems and event sourcing - Background in auditable, high-trust systems (fintech, payments, etc.) - Experience building services in greenfield, early-stage squads **Details** - Location: Berlin, Germany - Type: null - Salary: null

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