Senior Security Engineer for AI-Driven Platform

Gradial; Seattle (WA); On-site; USD 200,000 - 240,000; Full time

Benefits offered by this job

Performance bonus

Equity awards

Medical benefits

Fertility support

401k plan

Unlimited PTO

Seattle office

Free lunch

AI infra leadership

Job summary

Gradial is seeking a Staff Software Engineer, Security to own product and platform security end to end. You’ll define security strategy, build protections for multi‑tenant, cloud-based agentic systems, and guide incident response as Gradial scales.

This is a hands-on senior IC role with autonomy to shape security investments and partner with engineering and IT/compliance teams. You’ll lead threat modeling, implement secure-by-default patterns in CI/CD, and ensure logging and detection coverage.

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 the ability to reason about emerging risks from first principles.
• Experience leading security incident response for production services and improving systems based on what you learn.

Responsibilities

• Define and drive Gradial’s product and platform security strategy, prioritizing investments against the risks that matter most as we scale.
• Lead threat modeling for our agentic platform and design protections across agent behavior, permissions, isolation, customer data and platform boundaries.
• Harden our application and cloud infrastructure across production access, IAM, secrets management and the CI/CD supply chain.
• Partner with engineering to build secure-by-default patterns into how agents, services and infrastructure are designed and shipped.
• Own security detection and incident response for the platform, including logging standards, detection coverage and response processes.
• Represent technical security in enterprise customer reviews and architecture discussions, translating our approach clearly to customer security teams.
• Own the technical controls that support SOC 2 in partnership with our IT and compliance lead, ensuring controls are effective in practice as our systems evolve.
• Help shape the future of security at Gradial, including identifying where we need additional capabilities and helping hire future security team members.

Job description

Gradial is seeking a Staff Software Engineer, Security to own product and platform security end to end. You’ll define security strategy, build protections for multi‑tenant, cloud-based agentic systems, and guide incident response as Gradial scales.

This is a hands-on senior IC role with autonomy to shape security investments and partner with engineering and IT/compliance teams. You’ll lead threat modeling, implement secure-by-default patterns in CI/CD, and ensure logging and detection coverage.