Security Engineer - Platform Security
Plaid · Seattle Office
About this role
## Security Engineer — Platform Security Plaid is building the tools and experiences thousands of developers use to connect people’s financial accounts to the apps and services they want. The **Platform Security (PlatSec)** team defends Plaid against attackers, owning **laptop security, cloud security, AI security, detection & response, and red teaming**. Right now, Plaid is in growth mode—**AI has expanded Plaid’s attack surface faster than most security teams can adapt**. You’ll help build the **guardrails, identity controls, and detection systems** that keep pace without slowing the business down. ### About the role You’ll be Plaid’s **first line of defense on AI security**. You’ll review new AI technologies to find security risks before they ship, then design and implement controls that close those gaps. ### Responsibilities - Review AI systems and integrations for security risk **before and after deployment** - Design and deploy **guardrails, sandboxes, and other controls** to contain what AI agents can do - Build or implement systems to **track and manage AI identities**, including access granted and risk balancing - **Detect and mitigate prompt injection** across Plaid’s AI surface area - Run **AI-focused security reviews** and raise the bar for other teams ### Your impact - Fewer AI-related incidents - Faster AI shipping - Controls that scale ### Qualifications **Must-have** (hands-on experience securing AI technologies), including at least one of: - Deploying guardrails or sandboxes - Managing AI identities - Detecting or mitigating prompt injection - Running AI security reviews - Implementing AI security tooling (built or bought) **Nice-to-haves** - Experience at a frontier AI lab or on a security team defending production AI systems at scale - Experience in Infrastructure Security, Cloud Security, Platform Security, Corporate Security, SecOps, and/or Detection & Response - Software security review, SDLC, vulnerability discovery, and/or offensive security experience ### Equal Opportunity Plaid is an equal opportunity employer and values diversity. They do not discriminate based on protected characteristics and consider qualified applicants with criminal histories consistent with applicable laws. Reasonable accommodations are available—contact **accommodations@plaid.com** if you need assistance. ### Compensation & Benefits Additional compensation may include equity and/or commission (depending on the role). Plaid provides a comprehensive benefits plan (medical, dental, vision, 401(k)). Pay is based on scope, responsibilities, experience/skills, and location, and may change per applicable plans.
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