Sr Software Engineer - Playlist
Core
Build and operate backend systems for a high-traffic, high-reliability platform connecting people with fitness and wellness experiences, leveraging AI to accelerate delivery.
Role type
Senior hands-on IC backend engineer (distributed systems & AI)
Builds
Reliable backend services, APIs, and data infrastructure for the Playlist platform
Domain
Fitness & Wellness Technology / Distributed Systems / AI Engineering
Deliverable
production ML models | product features | infrastructure
Required skills
Distributed systems design, Data modeling & persistence, Service-oriented architecture, Object-oriented programming, System design fundamentals
Preferred skills
AI tooling (MCPs, evals, RAG), AI-native builder mindset
Technologies
Java/Kotlin/C#, SpringBoot/NetCore, PostgreSQL/MongoDB/DynamoDB, Redis, Gradle, New Relic/Datadog/Kibana/Grafana, Claude Code/Cursor/Codex
Responsibilities
Design and ship backend services and APIs end-to-end, Model and store data with schema design and performance tuning, Partner with Product and Design to deliver features, Promote engineering excellence through testing and code reviews, Mentor teammates on engineering rigor and responsible AI usage
Seniority
Senior, hands-on IC
