Backend Developer with experience in Node.js, NestJS, Typescript, Express, MongoDB, and SQL. Focused on designing scalable and maintainable backend architectures, optimize databases, and implement modular and efficient systems. Seeking opportunities to grow in backend or fullstack roles through real projects and continuous learning.
Contact Me Download CVTechnical degree focused on software programming and system development. Covers implementation and development of applications using various programming languages, methodologies, and technologies. Emphasizes collaborative work in development teams and technical documentation.
Full Stack development course with focus on HTML, CSS, JavaScript, React, Node.js, and MongoDB.
Intensive program covering JavaScript, SQL (MySQL), MongoDB and Node.js. Obtained Backend Developer certification.
Completed specialized courses in JavaScript and SQL (MySQL) with practical projects and assessments.
Building enterprise-level backend systems with NestJS and TypeScript. Developing scalable notification engines, API integrations, and robust backend services. Focused on implementing resilience patterns, event-driven architectures, multi-tenant systems, and comprehensive API documentation.
Generic, tenant-isolated notification engine built with NestJS and TypeScript for last-minute availability and opportunity events. Features multi-tenant architecture with PostgreSQL, event-driven processing pipeline, and asynchronous notification delivery using Redis + BullMQ with DLQ and retry policies. Implements hierarchical tag-based matching, resilience patterns with Cockatiel, idempotent delivery, and multi-channel support (Email/Push/WhatsApp) with extensible provider adapters.
Backend service for flights search built with NestJS and TypeScript. Features complete integration with Amadeus API for flight data, Redis caching system with dynamic TTL and pattern-based deletion, resilience patterns (Circuit Breaker, Retry, Timeout) using Cockatiel, structured logging with Winston, and modular architecture. Implements cache-aside pattern, OAuth2 authentication for Amadeus tokens, and normalized DTOs with comprehensive validation.
Medical appointments management system with JWT authentication, role-based access control (Admin, Doctor, Patient), and layered architecture. Features include appointment scheduling, doctor-patient management, specialty search, and advanced user management with MongoDB integration.
leandrotraficante@hotmail.com
Buenos Aires, Argentina