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About the Role

We're hiring our founding Platform Engineer, Security to design, build, and operate the security infrastructure that powers Decagon's AI platform. This is a builder's role focused on creating durable, well-engineered systems including paved paths for secure service creation, security tooling that automatically applies secure configurations, and infrastructure-as-code. As the first dedicated engineer in this area, you'll have a significant impact on how security infrastructure is built and shape the technical direction of the infrastructure security program. This role directly supports high-value enterprise deals and offers a clear path for growth.

Responsibilities

Design and implement secure, multi-tenant infrastructure that isolates customer data while enabling efficient AI model serving across our 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 (eg. 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
A 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
A 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

Skills

Google Cloud Platform
AWS
Terraform
Ansible
Python
Go
TypeScript
AI-assisted tooling
Secure container deployment
Service mesh
Kubernetes security
Observability
Incident response
GitOps
Policy-as-code
Semgrep
CodeQL
Kafka
Pulsar
Splunk
Panther
RunReveal

Location

In-office

Work Type

Full-time

Experience Level

5+ years building and operating production infrastructure

Salary/Compensations

$200K – $330K + Offers Equity

Benefits

Take what you need vacation policy
Medical, Dental, and Vision benefits for you and your family
Life Insurance and Disability Benefits
Retirement Plan (e.g., 401K, pension)
Parental Leave
Fertility and family building benefits through Carrot
Daily lunches and snacks in the office

About the Company

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, Block’s Cash App and Square, Chime, Oura Health, 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.
We’re proud to be backed by world-class investors who share that vision, including a16z, Accel, Bain Capital Ventures, Coatue, and Index Ventures, along with many others.
We’re an in-office company, driven by a shared commitment to excellence and velocity.
Our values — Just Get It Done, Invent What Customers Want, Winner’s Mindset, and The Polymath Principle — shape how we work and grow as a team.