Backend Engineer, Music

What You'll Do

• Own and evolve backend systems that deliver promotion scores to personalization systems (PZN)
• Build and maintain services that support promotion allocation and delivery at scale
• Collaborate closely with machine learning engineers and data engineers to improve signal quality and system performance
• Contribute to system design decisions that impact a critical part of Spotify’s discovery ecosystem
• Improve reliability, scalability, and observability of existing infrastructure
• Partner with cross-functional teams to ensure seamless integration with personalization workflows
• Gradually expand your scope into adjacent areas such as data pipelines or ML-adjacent systems

Who You Are

• You have experience building backend systems using Java or similar languages
• You are comfortable working across systems and are interested in learning beyond pure backend (e.g., data or ML systems)
• You are driven to leverage AI to improve our systems, and eager to find practical ways to apply it
• You have experience working with or exposure to Scala, Python, or data/ML workflows
• You are excited to grow into a T-shaped engineer with breadth across backend, data, and ML-adjacent domains
• You care about ownership and are motivated to take responsibility for evolving critical systems
• You collaborate effectively with cross-functional teams, including personalization and data partners