Backend Engineer - User Fraud

Requirements

• You have 2+ years of experience designing, building, and operating backend services in production environments
• You are experienced with APIs, distributed systems, and service-to-service communication
• You have a strong understanding of data modeling and working with SQL and/or NoSQL databases
• You care about system reliability, scalability, and operational excellence
• You use metrics, logging, and monitoring to understand and improve system behavior
• You communicate clearly and collaborate effectively with cross-functional teams
• You’re curious about trust, safety, fraud, or adversarial problem spaces

What You'll Be Doing

• Build, deploy, and operate backend (Java) services that mitigate fraud and abuse at scale
• Collaborate closely with data engineers and work with Spotify’s data tech stack (Scala, Scio, Google Dataflow)
• Evolve a distributed mitigation platform used by internal fraud detection teams
• Design APIs, workflows, and system safeguards that protect legitimate users while reducing attacker impact
• Improve system reliability, scalability, and observability using metrics, logs, and tracing
• Partner with engineering teams across Europe and the US to integrate mitigation capabilities into broader systems
• Contribute to strong engineering practices including code reviews, documentation, and incident learnings

Where You'll Be

• This role is based in Stockholm
• We offer you the flexibility to work where you work best! There will be some in-person meetings, but still allows for flexibility to work from home.