Senior AI Platform Security Engineer (AWS/DevSecOps)

DX1; Melbourne; On-site; AUD 140,000 - 190,000; Full time

Job summary

DX1 in Melbourne seeks a Security Engineer to join our FDE squads, securing platforms and AI workloads using DevSecOps and AI-DLC practices. You will work across cloud, platform, DevSecOps and AI security engineers to protect architectures and enable safe AI-enabled delivery.

You will design self-service delivery pipelines, enforce policy as code, and collaborate with ML, platform and architecture teams to ensure secure, auditable deployments across multiple AWS accounts.

Qualifications

• 5+ years in cloud, platform or DevSecOps engineering.
• CI/CD designed and owned in production with security scanning and merge blockers.
• Terraform or CDK across multiple AWS accounts with IAM, SCPs and KMS.

Responsibilities

• Design and build CI/CD pipelines with security scanning and approval gates.
• Write Terraform or AWS CDK for multi-account AWS environments.
• Threat model LLM and agent applications and translate findings into controls.
• Turn policies into policy-as-code (OPA/Rego, Checkov, cfn-guard) and enforce them.

Skills

Cloud/DevSecOps engineering

CI/CD with security scanning

Terraform or CDK multi-account AWS

Threat modelling for LLM/AI

Least-privilege identity for agents

Tools

Terraform

AWS CDK

GitHub Actions

GitLab CI

Harness

OPA/Rego

Checkov

cfn-guard

AWS Config rules

Job description

DX1 in Melbourne seeks a Security Engineer to join our FDE squads, securing platforms and AI workloads using DevSecOps and AI-DLC practices. You will work across cloud, platform, DevSecOps and AI security engineers to protect architectures and enable safe AI-enabled delivery.

You will design self-service delivery pipelines, enforce policy as code, and collaborate with ML, platform and architecture teams to ensure secure, auditable deployments across multiple AWS accounts.