Jorge Luis R.

I build the backend that holds a product up and the app your users actually touch - NestJS and PostgreSQL on AWS, Flutter on the front. One senior engineer across the whole stack, so the API and the app are designed together. Seven years building production software, currently leading backend architecture and infrastructure for a large health & fitness company in Brazil. On Upwork I've delivered 3,200+ hours on a single long-running contract since 2022 - the same client, continuously, which tells you more about how I work than any review could. WHAT I DO - Backend & API architecture: NestJS, Fastify, TypeScript, Drizzle ORM, REST, GraphQL, BullMQ, event-driven and CQRS patterns - PostgreSQL at depth: schema and constraint design, partitioning, JSONB, query optimization, migrations that don't take production down - AWS infrastructure: EKS, Aurora, RDS rightsizing, Nx monorepos, CI/CD with GitHub Actions, cost reduction on over-provisioned clusters - Flutter: iOS, Android and web from one codebase; Bloc and Riverpod state management, auto_route, Firebase, GraphQL integration - Developer tooling and AI-assisted workflows: I maintain an open-source CLI that orchestrates LLM coding agents through plan, implement and verify pipelines RECENT WORK (client names withheld) - Nutrition and meal-planning platform inside a major fitness chain. Own the infrastructure: Nx monorepo, NestJS + Fastify services on EKS, Aurora PostgreSQL. - Coaching and athlete-management platform. Designed the data model and API: complex SQL for performance metrics, polymorphic listings, bookable services, clean-architecture domain entities. - 3,200+ hours as lead developer on a long-running Flutter web and mobile product for a single Upwork client, active since 2022. I'd rather tell you honestly that I'm the wrong fit than take a contract I can't do well. Send me what you're trying to ship, or what's currently broken, and I'll give you a straight read on it.