About the Role

We are looking for a Senior AI Security Engineer to join a high-growth technology team building AI-native products. This is not an offensive security role — we are looking for a defensive security engineer with a strong AppSec background (70%) and cloud security experience (30%), who is excited about applying their skills to the fast-evolving world of AI systems, LLMs, and autonomous agents.

You will be embedded in an engineering organization where AI is at the core of the product, working closely with engineering, product, and infrastructure teams to ensure that every AI integration, agent workflow, and LLM-powered feature is designed and deployed securely.

Key Responsibilities

Review AI architectures and integrations end to end — LLMs, AI agents, tool chains, APIs, and external connectors — identifying security risks before they reach production

Lead threat modeling sessions and security architecture reviews across the stack

Design, implement, and automate security checks and controls for AI systems, including input/output validation, guardrails, and runtime monitoring

Research and stay current on AI-specific attack vectors — prompt injection, model abuse, data exfiltration, jailbreaking — and translate findings into actionable mitigations

Enforce OAuth, IAM policies, and least privilege principles across cloud and AI integrations

Build and maintain security automation pipelines integrated into CI/CD workflows





Collaborate with developers on secure coding practices and security requirements for AI features

Contribute to internal security documentation, policies, and awareness

Requirements

5+ years of hands-on experience in cybersecurity — excluyente

Strong AppSec background: secure code review, SAST/DAST, dependency scanning, secrets management

Experience conducting threat modeling or security architecture reviews — excluyente

Solid understanding of OAuth, IAM, and least privilege design patterns — excluyente

Ability to read code and write scripts, ideally in Python — excluyente

Cloud Security experience (GCP preferred)

Advanced English — written and spoken

Based in Buenos Aires, Argentina — Mandatory

Nice to Have

Formal experience in AI Security (a plus, not required — we will invest in your growth)

Familiarity with OWASP LLM Top 10

Experience with GCP, Kubernetes, Docker, GitHub Actions

Fintech background — PCI DSS, SOC 2

Knowledge of Product Security practices

What We Are NOT Looking For

Offensive security profiles (no pentesting or red team roles)

Specialists with no generalist security foundation

Candidates outside Buenos Aires, Argentina

About Wiset

Wiset is a nearshore software staff augmentation company connecting senior LATAM engineers with high-growth US technology companies. We place engineers who want to work on meaningful products, earn competitive compensation, and grow within a curated professional network.

📌 Senior AI Security Engineer (Buenos Aires)
🏢 Wiset
📍 Buenos Aires