Founding Principal Platform Engineer: AWS Foundations Lead

The Onset; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

The Onset seeks a Staff or Principal Platform Engineer to own the AWS foundations from day one in a greenfield setup. You will design the core AWS platform, create account structures, VPCs, IAM, and security controls, and implement CI/CD and container deployment patterns.

You will shape observability, reliability, and operational standards to guide future engineering teams as the platform scales with the business.

Qualifications

• Strong AWS experience at production scale and multi-account environments.
• Proven ability to design secure IAM and networking foundations.
• Experience building observability and reliability into platforms.

Responsibilities

• Own AWS foundations from day one, including account structure and environment design.
• Build and maintain VPC architecture and networking patterns.
• Lead infrastructure as code with Terraform and CI/CD pipelines.
• Define security foundations, IAM controls and access policies.
• Shape deployment patterns for containerised workloads and deployment strategies.
• Establish observability and reliability standards for the platform.
• Make architectural decisions to guide future engineering teams.

Skills

AWS architecture

Production reliability

Observability

Networking design

IAM and security

CI/CD

Containers

Tools

Terraform

Job description

The Onset seeks a Staff or Principal Platform Engineer to own the AWS foundations from day one in a greenfield setup. You will design the core AWS platform, create account structures, VPCs, IAM, and security controls, and implement CI/CD and container deployment patterns.

You will shape observability, reliability, and operational standards to guide future engineering teams as the platform scales with the business.