# Senior Platform Engineer, Security

**Company:** [Decagon](https://hotfix.jobs/companies/decagon)
**Location:** San Francisco, CA
**Role:** Security Engineering
**Salary:** $200k – $330k/yr
**Experience:** 5+ years
**Skills:** GCP, AWS, Terraform, Ansible, Python, Go, TypeScript, Kubernetes, IAM, SOC 2, ISO 27001, GDPR
**Posted:** 2026-06-05

> Founding Platform Engineer, Security building secure multi-tenant infrastructure, golden paths, and automation for Decagon's conversational AI platform. Requires 5+ years infrastructure experience, deep GCP/AWS knowledge, and strong IaC and coding skills.

## Job Description

## Responsibilities
- Design and implement secure, multi-tenant infrastructure that isolates customer data while enabling efficient AI model serving across the platform
- Build "golden paths" for security including service templates, libraries, terraform policies, and automation so new services are secure and production-ready by default
- Own infrastructure-as-code (Terraform) and GitOps best practices, including reusable modules and policy-as-code
- Expand and help operate the platforms behind alerting detection, secrets management, IAM, and automated remediation, integrating them cleanly into CI/CD and developer workflows
- Partner with Security, Infrastructure, and product engineering teams to translate enterprise and compliance requirements (SOC 2, ISO 27001, GDPR) into reliable, automated technical controls
- Participate in security on-call and continuously raise the bar on operability, runbooks, and incident learnings

## Requirements
- 5+ years building and operating production infrastructure, with meaningful exposure to security or a strong interest in moving deeper into security problems
- Deep knowledge of Google Cloud Platform and/or AWS, including compute, networking, IAM, and security services
- Proficiency with infrastructure-as-code (Terraform, Ansible, or similar) and a track record of building developer-facing tooling and automation
- Strong coding ability in at least one systems language (Python, Go, TypeScript) and comfort building paved-path tooling teams actually adopt
- Experience applying AI-assisted tooling (Cursor, Claude Code, and similar) to make engineers dramatically more effective
- Experience with secure container deployment, service mesh, and Kubernetes security best practices
- Observability and incident-response tooling experience (instrumentation, alerting, dashboards), with a bias toward eliminating toil
- Clear written communication and the ability to turn ambiguous requirements into simple, reliable designs

## Nice-to-Haves
- Track record of being an early or founding platform/infrastructure/security engineer at another company
- Experience building internal platforms: service templates, paved-road deployment, self-serve environments, or developer portals
- Security-minded approach to the software supply chain (provenance, secrets, least privilege) and familiarity with static analysis tooling (Semgrep, CodeQL)
- Experience with detection and response data pipelines (Kafka/Pulsar, Splunk/Panther/RunReveal, or similar)
- Knowledge of enterprise compliance requirements (SOC 2, ISO 27001, GDPR) from an infrastructure and platform perspective

## Compensation & Benefits
- $200K – $330K + equity
- Take what you need vacation policy
- Medical, Dental, and Vision benefits
- Life Insurance and Disability Benefits
- Retirement Plan (e.g., 401K)
- Parental Leave
- Fertility and family building benefits through Carrot
- Daily lunches and snacks in the office

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