CareerPlan

Senior Software Engineer - Display Ads

Buenos Aires,ArgentinaFull-time2026-10-20 → 2026-10-24

Core

Design, develop, and evolve critical components of the Display Ads serving and auction flow to drive performance and efficiency for Mercado Libre's e-commerce platform.

Role type

Senior Software Engineer (Backend)

Builds

Display Ads serving and auction systems

Domain

E-commerce / Advertising

Deliverable

production ML models | product features

Required skills

Backend development (Java/Go), High-volume traffic system design, Database management, Caching strategies, Unit and integration testing, Performance optimization, Incident investigation, Technical leadership

Preferred skills

Mentoring, Business alignment, Continuous improvement

Responsibilities

Design and develop critical components of the Display Ads serving and auction flow, Participate in architecture decisions and maintain end-to-end technical ownership, Analyze and optimize performance, latency, and scalability of real-time applications, Ensure observability, quality, and health of services, Collaborate with multidisciplinary teams to align solutions with business metrics, Promote engineering best practices and mentor the team