Staff Security Engineer, AI Platforms

Gradial; Seattle (WA); On-site; USD 220,000 - 265,000; Full time

Benefits offered by this job

Annual bonus

Equity awards

Medical, dental & vision benefits

Fertility & family-planning support

401k plan

Unlimited PTO

Seattle office with gym / facilities

Free lunch three days a week

Opportunity to build AI infrastructure

Job summary

Gradial, an AI-native security company in Seattle, seeks its first dedicated Staff Security Engineer, AI. You’ll own product and platform security end to end, shaping how we design, build and operate secure agentic systems as we scale.

This hands-on IC role sets security direction, builds essential controls, and partners with engineering to grow our platform and customer base with autonomy to determine where security investments matter most.

Qualifications

• 8+ years of experience in security engineering, including Principal or Staff-level ownership across complex production systems.
• Deep product security experience across threat modeling, secure architecture, authentication and authorization and multi-tenant systems.
• Strong hands-on experience with cloud security, Kubernetes, IAM and infrastructure as code.
• A strong technical point of view on securing LLM and agent-based systems with first-principles reasoning.

Responsibilities

• Define and drive Gradial’s product and platform security strategy, prioritizing investments against key risks as we scale.
• Lead threat modeling for the agentic platform and design protections across agent behavior, permissions, isolation, data and boundaries.
• Harden our application and cloud infrastructure, focusing on production access, IAM, secrets management and CI/CD supply chain.
• Partner with engineering to embed secure-by-default patterns into design and shipping of agents, services, and infrastructure.
• Own security detection and incident response for the platform, including logging, detection coverage and response processes.
• Represent technical security in customer reviews and architecture discussions with clear communication to security teams.
• Own controls supporting SOC 2 in collaboration with IT/compliance, ensuring ongoing effectiveness as systems evolve.
• Help shape security at Gradial and contribute to hiring future security team members.

Skills

Security engineering

Threat modeling

Cloud security

Secure software

Communication

Tools

Kubernetes

IAM

Job description

Gradial, an AI-native security company in Seattle, seeks its first dedicated Staff Security Engineer, AI. You’ll own product and platform security end to end, shaping how we design, build and operate secure agentic systems as we scale.

This hands-on IC role sets security direction, builds essential controls, and partners with engineering to grow our platform and customer base with autonomy to determine where security investments matter most.