CareerPlan

Software Engineer Backend - IT CRM Customer Service

Buenos Aires,ArgentinaFull-time2026-09-25 → 2026-10-24

Core

Design and scale innovative and secure systems solving high-impact problems in e-commerce and financial services using AI and advanced engineering practices.

Role type

Senior IC backend software engineer (AI systems & architecture)

Builds

Scalable AI-powered applications and backend systems for Mercado Libre's e-commerce and financial services

Domain

E-commerce and financial services in Latin America

Deliverable

production ML models

Required skills

Node.js, Express.js, Go, scalable architecture design, clean code, unit testing, monitoring (Datadog, Grafana), AI tooling

Preferred skills

Mentoring, technical leadership, technical debt management

Technologies

Node.js, Express.js, Go, Datadog, Grafana, AI models

Responsibilities

Lead design and implementation of high-impact AI architectures, analyze impact of macro technical initiatives, plan technology stack evolution, ensure scalability and maintainability of AI-powered applications, drive team technical training through mentoring

Seniority

Senior, hands-on IC with leadership responsibilities