Senior Full Stack + Mobile Developer

Description

**About the Position** We are seeking a Senior Full Stack Developer with an execution-oriented mindset and strong technical vision to serve as the architectural reference for projects involving critical integrations (ERP, payment gateways, and legacy systems). You will collaborate closely with the Product Owner and Project Manager, under the leadership of a Tech Lead. **Responsibilities** * Technically engage with the team and actively participate in implementations, ensuring coding standards, architecture, and best practices within a TypeScript monorepo. * Design and optimize modular architecture, enabling independent deliveries per phase. * Define and maintain PostgreSQL architecture, including performance strategies, indexing, and partitioning. * Design adapters for integration with legacy systems (e.g., TOTVS Consinco ERP), ensuring resilience via cache/fallback mechanisms. * Implement and oversee integrations with TOTVS ERP (catalog, inventory, orders, customers), Cielo/Braspag, iFood, Fórmula Certa/Fagron, and Roch/Bnex. * Implement multi-layered security: network, authentication, application, data, and mobile. * Ensure LGPD compliance from inception: consent management, encryption, auditing, and data subject rights. * Configure and maintain AWS infrastructure (dev, staging, production), CI/CD pipelines, blue\-green deployments, and scalability. * Implement monitoring, centralized logging, alerting, and dashboards. * Design search mechanisms using OpenSearch/Elasticsearch. * Conduct code reviews, mentor developers, and support technical estimations. * Participate in technical and executive committees, reporting project risks and progress. * Document architecture, APIs, and operational processes. **Technical Knowledge** **React Native** * React Navigation, Zustand, AsyncStorage, and styling (StyleSheet/NativeWind). **ReactJS** * Development of responsive SPAs. * State management (states, reducers, context). * Hooks and custom hooks. **JavaScript / TypeScript** * Data validation (JOI, ZOD). * Build tools (Webpack, Rollup, Vite). * Proficiency in TypeScript, generics, and project configuration (tsconfig, eslint, prettier). **Node / NestJS** * Building scalable APIs and applications. * Streams, queues (Bull/BullMQ, Redis), and caching strategies. **Infrastructure and DevOps** * Docker (Dockerfile, Compose, ECR/DockerHub). * AWS: EC2, ECS, Fargate, S3, RDS, Lambda, CloudFront, Cognito. * CI/CD using GitHub Actions or similar tools. **Database and Architecture** * Advanced PostgreSQL. * Security, scalability, high availability, monitoring, Multi\-Tenancy, Bash, and event-driven architectures. **Mandatory Requirements** * 5\+ years as a Full Stack Developer and 2\+ years in a senior role. * Advanced proficiency in TypeScript for large-scale projects. * Experience with React Native in published apps (iOS and Android). * Solid experience with React and Node.js for high-performance applications. * Proficiency in Node.js/NestJS (guards, interceptors, pipes, modules, and microservices). * Experience with PostgreSQL in high-load environments. * Hands-on experience with Redis, queues, and distributed caching. * Experience with AWS (EC2/ECS/Fargate, RDS, S3, CloudFront, Cognito, API Gateway, CloudWatch). * Experience with CI/CD, blue\-green deployment, and rollback procedures. * Experience with enterprise integrations: ERPs (preferably TOTVS), payment gateways, and external APIs. * Solid knowledge of software architecture (SOLID, MVC, Hexagonal, DDD). * Experience with unit, integration, and end-to-end testing. * Knowledge of application security and LGPD. **Nice-to-Have** * TypeScript monorepo (Turborepo). * Expo (EAS Build and OTA Updates). * OpenSearch/Elasticsearch. * Docker, ECS/Fargate, and observability. * E\-commerce or pharmaceutical retail projects. * Firebase. * Microservices and event-driven architecture. * Experience building scalable applications on AWS.