Senior FinTech Backend Engineer | Payments, Banking APIs, AWS & Solana

We are looking for an experienced backend engineer for an immediate fintech payment infrastructure project. Required skills: Node.js, TypeScript, PostgreSQL, Redis, payment API integration, webhooks, AWS, Docker, transaction security, and Solana/SPL. Experience with banking APIs, BaaS, stablecoin payments, reconciliation, and secure payment systems is strongly preferred. The ideal candidate should have real production fintech/payment experience and be able to take ownership of backend development and integrations. Please include your most relevant payment or fintech project and your availability to start immediately.