Decagon

Senior Platform Engineer, Security

Decagon
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5 months ago

Base Salary

$200k - $330k/yr

Responsibilities

  • Design and implement secure, multi-tenant infrastructure that isolates customer data and supports efficient AI model serving.
  • Build secure golden paths, including service templates, libraries, Terraform policies, and automation.
  • Own Terraform infrastructure-as-code, reusable modules, GitOps practices, and policy-as-code.
  • Expand and operate platforms for alerting, detection, secrets management, IAM, and automated remediation.
  • Integrate security capabilities into CI/CD and developer workflows.
  • Translate enterprise and compliance requirements, including SOC 2, ISO 27001, and GDPR, into automated technical controls.
  • Participate in security on-call and improve operability, runbooks, and incident learning.
  • Shape the technical direction of Decagon’s infrastructure security program as its first dedicated engineer in this area.

Requirements

  • At least 5 years of experience building and operating production infrastructure, with meaningful 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 and experience building developer-facing tooling and automation.
  • Strong coding ability in at least one systems language, such as Python, Go, or TypeScript.
  • Experience applying AI-assisted tooling such as Cursor or Claude Code.
  • Experience with secure container deployment, service mesh, and Kubernetes security best practices.
  • Experience with observability and incident-response tooling, including instrumentation, alerting, and dashboards.
  • Clear written communication and ability to turn ambiguous requirements into reliable designs.
  • Preferred experience as an early or founding platform, infrastructure, or security engineer.
  • Preferred experience building internal platforms, service templates, paved-road deployments, self-service environments, or developer portals.
  • Preferred familiarity with software supply-chain security, including provenance, secrets, least privilege, Semgrep, or CodeQL.
  • Preferred experience with detection and response data pipelines such as Kafka, Pulsar, Splunk, Panther, or RunReveal.
  • Preferred knowledge of SOC 2, ISO 27001, and GDPR from an infrastructure and platform perspective.

Benefits

  • Take-what-you-need vacation policy; UK employees receive 25 days of statutory leave.
  • Medical, dental, and vision benefits for employees and families.
  • Life insurance and disability benefits.
  • Retirement plan, such as a 401(k) or pension.
  • Parental leave.
  • Fertility and family-building benefits through Carrot.
  • Daily lunches and snacks in the office.
  • Full-time employee benefits may vary by location and can change according to applicable plans.
  • In-office work arrangement.
Decagon

About Decagon

501-1,000 employees

Decagon builds an enterprise conversational AI platform that deploys customer-support agents across voice, chat, email, SMS, and other channels. It sells to large brands via enterprise subscriptions and services, helping automate and personalize support workflows. Founded in 2023 and headquartered in San Francisco, Decagon’s customers include Avis Budget Group, Chime, Oura Health, and 1-800-Flowers.

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