Senior Full-Stack Engineer (React & Node)

We are seeking a Senior Full-Stack Engineer to lead the design and execution of high-throughput payment components. ### Key Responsibilities: - Build ultra-responsive user interfaces with React, Next.js, and TypeScript. - Design resilient GraphQL and REST APIs backed by Postgres and Redis. - Optimize payment checkout funnels to reduce latency and boost conversion rates. ### Requirements: - 4+ years experience with modern JavaScript / TypeScript ecosystems. - Strong expertise in SQL performance tuning and database migrations. - Experience working in high-availability distributed systems.