AI Offensive Security Engineer

JOB DESCRIPTION At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.

Role Overview

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eBay seeks an AI Offensive Security Engineer to proactively identify and exploit vulnerabilities in AI/ML systems before adversaries do. This is a hands-on technical role focused on offensive research, adversarial attack simulation, and building the tools and automation that scale our AI security testing program. If you're an experienced offensive security engineer ready to apply your skills to one of the fastest-growing attack surfaces in the industry, this role is for you.

Key Responsibilities

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• Offensive AI Research:Design and execute adversarial attacks against production AI/ML systems — including prompt injection and traditional vulnerabilities
• Red Team Operations:Lead AI-focused red team engagements: threat model targets, develop attack chains, execute, and deliver actionable findings
• Tool Development:Build, maintain, and document offensive security tooling for AI system testing — attack harnesses, fuzzing frameworks, automated vulnerability scanners, and agentic attack simulations
• Vulnerability Research:Discover novel attack techniques against LLMs, multimodal models, agentic pipelines, and AI-integrated applications; contribute findings to the broader sec...