Decagon
Senior Software Engineer, Platform Security
$200K–$400K
San Francisco +1 · Senior · Full-time · Posted Sep 21, 2026
- Location
- San Francisco
New York City - Experience
- 5+ years building and operating production infrastructure.
About the job
Build and operate security infrastructure and developer-facing tooling that protects Decagon’s AI platform and customer data.
What you'll do
- Design secure multi-tenant infrastructure and golden paths that make services secure by default.
- Own Terraform and GitOps practices, and operate security platforms for alerting, secrets, IAM, and automated remediation.
- Translate enterprise and compliance requirements into automated controls; participate in security on-call and improve incident response.
What they ask for
- 5+ years building and operating production infrastructure, with security exposure or strong interest in security.
- Deep knowledge of Google Cloud Platform and/or AWS, including compute, networking, IAM, and security services.
- Proficiency with infrastructure-as-code such as Terraform or Ansible, plus developer-facing tooling and automation.
- Strong coding ability in at least one systems language; experience with AI-assisted tooling and Kubernetes security practices.
Nice to have
- Experience as an early or founding platform, infrastructure, or security engineer; or building internal platforms.
- Supply-chain security or static analysis experience, detection and response data pipelines, or compliance knowledge.
Pay
$200K – $400K (currency not stated; base salary or total pay not stated)
Tools
Google Cloud Platform, AWS, Terraform, Ansible, Python, Go, TypeScript, Kubernetes
AI focus
Build security infrastructure for an AI platform, including secure multi-tenant infrastructure for efficient AI model serving; apply AI-assisted tooling such as Cursor and Claude Code to improve engineering effectiveness.
Model-written summary · the original posting is authoritative