Lead the architecture and implementation of scalable, secure, high-performance, multi-region backend systems using Node.js and TypeScript. Drive reliability, performance, security, testing, observability, deployment consistency, and incident response across teams. Design distributed architectures, GraphQL APIs, authentication systems, serverless applications, and multi-cloud solutions. Influence technical strategy, optimize costs and latency, mentor developers, facilitate cross-functional alignment, and translate complex engineering initiatives into business outcomes.