Senior Product Engineer, Scalability

📋 Description Architect and scale pipelines for real-time billing and metering. Build idempotent payment flows with retries and reconciliation. Develop fraud/abuse detection with real-time scoring. Scale Postgres, Node.js services, and Temporal workflows for durability. Build TypeScript + GraphQL APIs with correctness and auditability. Write Engineering Requirements Documents; contribute to OSS. 🎯 Requirements Autonomous backend design lead. Scales pipelines/services/DBs by 10x. Deep Postgres relational modeling expertise. Strong Node.js internals understanding. Experience with async/long-running jobs (Temporal). Payments knowledge: idempotency, retries, reconciliation. Security-minded with abuse prevention mindset. 🎁 Benefits Autonomy: few meetings; your time is sacred. Ownership: high autonomy culture; own outcomes. Novel problems/solutions: high-leverage, creative work. Growth: grow with Railway and land your next role.