Senior Node.js Backend Engineer

Backend Engineer with 10+ years of experience building production-grade Node.js and TypeScript APIs, billing systems, and automation pipelines. Owned the billing and metering backend for a high-scale Solana developer platform — building usage tracking, overage calculation, end-of-cycle charging, subscription lifecycle management, and payment processing pipelines. Deep expertise in REST API design, PostgreSQL, AWS serverless, and writing backend systems that handle complex billing logic reliably in production.