Job Summary: We are seeking a Senior Software Engineer to build high-impact agentic systems, designing end-to-end solutions in a dynamic environment powered by cutting-edge technology and AI to democratize e-commerce. Key Highlights: 1. Build agentic systems for real-world, high-impact problems. 2. Work with cutting-edge technology, AI, and continuous learning. 3. Design simple, secure, and sustainable agentic solutions. As a **Senior Software Engineer** at Mercado Libre, you will build agentic systems to solve real, high-impact challenges across MELI. You will collaborate with business and technology teams to design, build, and evolve complete solutions—or contribute to specific challenges—by integrating existing capabilities, platforms, and systems within MELI. You will work in a dynamic environment leveraging cutting-edge technology, applying sound engineering practices, AI models, and continuous learning—all aimed at democratizing e-commerce and financial services across Latin America. Imagine leading challenging, dynamic, and innovative projects—and **being accountable for**: * Understanding business challenges to design and build agentic solutions that deliver real value, prioritizing simple, secure, and sustainable implementations. * Participating hands\-on in designing agent behavior: context, tools, memory, integrations, and observability mechanisms. * Building and evolving end\-to\-end solutions, engaging across all dimensions required by each initiative. * Collaborating with business, technology, and platform teams to integrate existing capabilities, identify gaps, and contribute to the evolution of new capabilities. * Designing, executing, and analyzing experiments and evaluations to measure solution quality and guide continuous improvement. * Researching and testing new AI Agent practices, models, and approaches—distinguishing trends from what demonstrably delivers value in practice. * Contributing to a collaborative team by sharing learnings, reusing solutions, and helping transform ambiguous problems into concrete deliverables. **What we’re looking for in you**: * Curiosity, autonomy, and the ability to investigate, experiment, and solve ambiguous problems. * Ability to work collaboratively in cross-functional teams with both technical and business stakeholders. * Experience building solutions using LLMs and their APIs, such as GPT, Gemini, DeepSeek, or others. * Practical knowledge of agent design and development—including context and state management, memory, tools, skills, hooks, integrations, and observability. * Strong proficiency in at least one programming language, and the ability to learn additional languages or technologies as needed. * Knowledge of RESTful API design and software development best practices. * Familiarity with relational databases such as MySQL or similar. * Sound judgment to balance quality, security, cost, latency, and complexity when designing AI-powered solutions. * Bonus: experience with evaluations for non-deterministic systems, RAG, tool integration protocols, multimodal agents, or multi-agent systems. **Ready to leave your mark on Latin American technology?** Apply now and join our mission! Hybrid work model. Site Saavedra\- CABA.
Sofía González
Indeed · HR
Sofía González
Indeed · HR
