Decagon

Senior Platform Engineer, Security

Decagon
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3 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 is the leading conversational AI platform empowering every brand to deliver concierge customer experiences. Our technology enables industry-defining enterprises like Avis Budget Group, Chime, Oura Health, 1-800-FLOWERS.COM, and Hunter Douglas to deploy AI agents that power personalized, deeply satisfying interactions across voice, chat, email, SMS, and every other channel. We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships.

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