Principal Security Engineer, Product & Platform

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Principal Security Engineer, Product & Platform in USA new

Gradial
Full time
Email

USA
10/03/2026
Report

Seattle, WA

Responsibilities

Define and drive Gradial’s product and platform security strategy and prioritize investments against material risks.
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 build secure-by-default patterns for agents, services, and infrastructure.
Own security detection and incident response, including logging standards, detection coverage, and response processes.
Represent technical security in enterprise customer reviews and architecture discussions.
Own technical controls supporting SOC 2 in partnership with the IT and compliance lead.
Identify future security capabilities and help hire additional security team members.

Requirements

10+ years of experience in security engineering, including Principal- or Staff-level ownership across complex production systems.
Deep product security experience with threat modeling, secure architecture, authentication and authorization, and multi-tenant systems.
Strong hands-on experience with cloud security, Kubernetes, IAM, and infrastructure as code.
Technical expertise securing LLM and agent-based systems and reasoning about emerging risks.
Experience leading security incident response for production services.
Track record of writing and shipping production code, security tooling, or infrastructure.
Ability to make pragmatic security tradeoffs in fast-moving environments without an established playbook.
Clear communication with engineers, company leadership, and enterprise customer security teams.
Preferred experience as an early security hire at a high-growth B2B SaaS, AI, or infrastructure company.
Preferred experience building security detections, telemetry, and logging pipelines in cloud environments.
Preferred experience implementing technical controls for SOC 2 or ISO 27001, or contributing to AI security research, standards, or open-source security tooling.

Benefits

Performance-based annual bonus and meaningful equity awards.
Medical, dental, and vision coverage, fully covered for employees and 75% covered for dependents.
Fertility and family-planning support.
401k plan and unlimited PTO.
Seattle office with a gym, sauna, bike parking, and free lunch three days per week.
Flexible work hours and a collaborative culture focused on learning and impact.

Salary: $180k - $240k/yr

Gradial

Gradial builds an enterprise marketing operations platform that orchestrates tools, workflows, and teams to automate content and campaign execution for marketing organizations. It sells its software to enterprises seeking to streamline complex martech stacks and speed time from idea to launch. Fo...

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