C

C1

AI-native identity security platform

Senior Security Engineer

Security Engineering & ArchitectureConfirmed live in the last 24 hours
Full-time

About the Job

Requirements

  • Proven experience securing enterprise SaaS applications, including authentication flows, authorization patterns, and input validation at API boundaries.
  • Demonstrated experience securing deployment and change-management mechanisms for software and infrastructure.
  • Background in Software Engineering, Platform Engineering, Systems Engineering, Network Engineering, Cloud Security, or Application Security.
  • Hands-on code review experience, ideally in Go, Python, or Rust.
  • Experience with AWS or another major cloud provider and comfort working across cloud infrastructure.
  • Must participate quarterly in person at one of the primary offices in San Francisco or Portland, Oregon.
  • Candidates should be prepared to share a project, demo, or repository where they built an agent, skill, or automation that replaced manual security work; examples of AI coding tools or agentic workflows used day-to-day; or a short live or recorded walkthrough of a shipped security automation, including its problem, approach, and impact.

Responsibilities

  • Define and drive security standards and secure-by-default solutions, serving as a subject matter expert for application and/or cloud security.
  • Build purpose-built agents and skills that orchestrate security into the development lifecycle through a risk-based approach, automating manual repetitive work such as triage, enrichment, and review.
  • Bake risk-based review into design specifications and architecture decisions to shift security left, rather than relying on post-deployment audits.
  • Build security tooling and automation that scales security practices across engineering, and help implement meaningful, actionable security observability and detection signals.
  • Lead threat modeling and risk assessment for high-risk features and platform changes.
  • Assess and help mitigate security risks introduced by agentic development practices and AI-powered product features running in production.
  • Partner with engineering teams to prioritize and remediate critical threats, help define API security standards, and conduct security code reviews.
  • Explore and adopt open-source tools to assess and test services for security rather than defaulting to manual review.
  • Identify systemic security risks and lead multi-team remediation efforts end-to-end, including implementation beyond the initial recommendation.
  • Partner across security, compliance, and engineering on cross-domain problems and serve as a point of contact for difficult security questions.
  • Contribute to compliance and trust initiatives, including SOC 2 and ISO 27001/42001, as they intersect with the role's area of focus.
  • Invest in teammate growth and raise the security bar across the broader engineering organization.

Desired Qualifications

  • Experience with Kubernetes, service mesh, or PKI/network technologies such as Consul, Envoy, Cilium, Vault, or Istio.
  • Experience building or extending internal security tooling, automations, or agents.
  • Prior experience at a high-growth SaaS or identity/access management company.

About the Company

C1

AI-native identity security platform

C1 provides an AI-native identity security platform that unifies IGA, IAM, and PAM into a single system to manage human, non-human, and AI identities. It automates access requests, provisioning, and user access reviews, using dynamic and just-in-time access controls and AI agents to monitor and adjust permissions. The platform integrates with many cloud apps and infrastructure, giving real-time visibility into all permissions and automating identity operations. Its goal is to secure the agentic enterprise by reducing identity sprawl, speeding access decisions, and enabling AI identities to outnumber human users without compromising security.

Company size
51-200
Company stage
Not listed
Total funding
Not listed
Headquarters
San Francisco, CA
Founded
Not listed

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