Backend Software Engineer

About the role

As a Backend Software Engineer at Mercado Libre, you will design and scale innovative, secure systems that solve real‑world problems for millions of users across Latin America. You will work autonomously on new features while ensuring high standards of quality, security, and performance.

Key responsibilities

• Design and implement backend services with a focus on scalability and security.
• Participate in architectural discussions, defining quality and scalability criteria.
• Develop new features independently, applying best practices for code quality and performance.
• Monitor application health, identify performance bottlenecks, and propose concrete improvements.

Required profile

• Mid‑level professional with solid experience in backend development.
• Hands‑on experience with Golang; knowledge of Java is a plus.
• Familiarity with frontend frameworks such as React or Angular.
• Understanding of generative AI concepts, Retrieval‑Augmented Generation (RAG), and machine‑learning pipelines.
• Experience with large‑scale data processing tools like BigQuery.

Required skills

• Golang
• Java
• React
• Angular
• Machine Learning
• BigQuery
• Datadog
• Kibana
• Unit testing
• Integration testing

What we offer

• Hybrid work modality.
• Opportunity to work on challenging projects that impact e‑commerce and financial services in Latin America.