Hello We are Cashea and our mission is to give Venezuelans back the opportunity to access credit through a BNPL business model. Since our launch in 2022, we have been dedicated to promoting financial inclusion. Today we have more than 9 million active users, both consumers and merchants, and we have become a trusted brand in Venezuela, winning hearts and minds.

About the role:
The Senior AI Security Engineer is responsible for testing, attacking, and defending the company's generative AI implementations: proprietary AI products, internal platforms, agents, integrations, and coding assistants. Combines an offensive profile (prompt injection, jailbreaking, LLM and agent red teaming) with a defensive profile (guardrails, input/output controls, best practices and guidance to teams). Works with AppSec, DevSecOps, product and engineering.

Responsabilities:
- Perform red teaming and penetration testing on AI deployments: proprietary products using LLMs, agents, chatbots, coding assistants and any generative interface. This includes direct and indirect prompt injection, jailbreaking,



data exfiltration via outputs, system prompt leakage, excessive agency and tool misuse.
- Assess the security of AI agents in production: permissions, tool use, function calling, plugins and autonomous action capabilities — identify abuse paths and confused-deputy scenarios.
- Design and implement guardrails and defensive controls based on offensive findings: input/output validation, content filtering, hardening of system prompts, context-based access controls and action limits for agents.- Test and validate the robustness of existing guardrails in internal platforms and in products that expose AI to end users.
- Develop and maintain tools, scripts and automations for LLM red teaming, focusing on continuous and repeatable testing.
- Document findings with actionable remediation playbooks and support development teams in fixing and preventing AI vulnerabilities.
- Create and maintain best-prac

📌 Senior Ai Security Engineer (Buenos Aires)
🏢 Cashea
📍 Buenos Aires