Backend Engineer with 5+ years of hands-on experience building and operating production-grade backend systems. Strong focus on Node.js/TypeScript and NestJS, with practical ownership of microservices, layered architecture, PostgreSQL database engineering, Redis caching, authentication/authorization, observability, analytics, testing and production infrastructure. Since May 2026, serving as the primary Backend Developer for AznoTech, owning core backend implementation and production delivery. Experienced in Al-assisted engineering with Codex, Mimo Code and coding agents, including repository-specific rules, architecture guidance and Markdown context.