Staff Security Engineer, AI

Gradial • Seattle, WA

3d

About The Position

Gradial is hiring its first dedicated security engineer to own product and platform security end to end as the company scales its AI-native enterprise marketing platform. This is a hands-on Staff individual-contributor role with significant autonomy to set technical security direction, build high-impact systems and controls, and partner closely with engineering. The role works alongside the IT and compliance lead, who owns GRC and corporate IT.

The engineer will define security strategy and priorities, protect the agentic platform and its customer data, harden application and cloud infrastructure, and embed secure-by-default practices into product and infrastructure development. The role also owns platform security detection and incident response, supports enterprise customer security reviews, and partners on technical controls for SOC 2. The successful candidate will help identify future security needs and contribute to building the security team.

Requirements

• 8+ years of security engineering experience, including Staff- or Principal-level ownership across complex production systems.
• Deep product security experience, including 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 lessons learned.
• A track record of writing and shipping production code, security tooling, or infrastructure—not only reviewing others’ work.
• Strong judgment and comfort making pragmatic security tradeoffs in fast-moving environments without an established playbook.
• Clear communication with engineers, company leadership, and enterprise customer security teams.

Nice To Haves

• Experience as an early security hire at a high-growth B2B SaaS, AI, or infrastructure company.
• Experience building security detections, telemetry, and logging pipelines in cloud environments.
• Experience implementing technical controls for SOC 2 or ISO 27001, or contributing to AI security research, standards, or open-source security tooling.

Responsibilities

• Define and drive product and platform security strategy, prioritizing investments against the most important risks as Gradial scales.
• Lead threat modeling for the agentic platform and design protections for agent behavior, permissions, isolation, customer data, and platform boundaries.
• Harden application and cloud infrastructure, including production access, IAM, secrets management, and the CI/CD supply chain.
• Partner with engineering to establish secure-by-default patterns for designing and shipping agents, services, and infrastructure.
• Own platform security detection and incident response, including logging standards, detection coverage, and response processes.
• Represent technical security in enterprise customer reviews and architecture discussions, communicating Gradial’s approach to customer security teams.
• Own technical controls supporting SOC 2 in partnership with the IT and compliance lead, ensuring controls remain effective as systems evolve.
• Identify future security capabilities needed and help hire future security team members.

Benefits

• Performance-based annual bonus
• Meaningful equity awards
• Medical, dental, and vision coverage fully covered for employees, with 75% coverage for dependents
• Fertility and family-planning support
• 401(k) plan
• Unlimited PTO
• Seattle office with a gym, sauna, and bike parking
• Free lunch three days a week at the headquarters
• Flexible work hours
• Collaborative culture focused on learning and impact

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed