Technical Leader - Data Security & AI Engineering
Mercado Libre2 days ago
Buenos Aires, ArgentinaStaff+
Responsibilities
- Design and implement preventive and contextual controls for sensitive information across endpoints, browsers, cloud, SaaS, and distributed environments.
- Develop generative-AI-powered security solutions for data-leak detection, classification, prevention, false-positive reduction, and remediation.
- Protect generative AI adoption with guardrails covering prompts, responses, conversations, connected tools, agents, and cross-system workflows.
- Lead architecture and engineering decisions from design and experimentation through implementation, integration, and observability.
- Guide code reviews, proofs of concept, and the technical growth of the team.
Requirements
- Demonstrated expertise in security engineering, application security, and data loss prevention.
- Ability to design scalable security controls and understand AI risks including prompt injection, information exposure and exfiltration, data poisoning, and tool misuse.
- Technical leadership experience and experience making architecture decisions.
- Software development and automation experience with Python, Go, APIs, event-oriented architectures, cloud, microservices, identity management, and access controls in AWS or GCP.
- Experience designing generative AI, LLM, agent, and RAG solutions.
- Experience securely integrating tools with MCP and frameworks such as LangGraph, LangChain, or CrewAI.
- Familiarity with AI-assisted development tools including Claude Code, GitHub Copilot, Codex, or Cursor.
- Knowledge of OWASP Top 10 for LLM Applications, OWASP Agentic AI, NIST AI RMF, LLMOps, and agent evaluation.
Benefits
- Hybrid work arrangement.
- Opportunities to learn through challenging work, use emerging technology and GenAI, and grow in a collaborative and positive environment.
Tech Stack
Categories
About Mercado Libre
Mercado Libre builds an e-commerce marketplace and fintech infrastructure for consumers and merchants across Latin America. It monetizes through marketplace transaction fees, payment processing (Mercado Pago), logistics and fulfillment (Mercado Envíos), advertising, and credit products. Founded in 1999 and headquartered in Buenos Aires, it operates in 18 countries and is publicly traded on Nasdaq under the ticker MELI.