Job Description
Shape the Future of Cloud & AI Platforms
We are looking for a Principal Platform Engineer to join a leading enterprise organisation and drive the next evolution of its AWS cloud and AI platform capabilities.
This is a rare opportunity for a highly skilled platform engineering professional to take ownership of platform strategy, architecture, automation, and engineering standards across a modern AWS ecosystem.
You'll play a key role in enabling cloud-native development, accelerating AI adoption, and building secure, scalable platforms that empower engineering teams to deliver at speed.
You'll be joining a high-performing technology team working at enterprise scale, leveraging modern cloud, DevOps, Kubernetes, and AI technologies to deliver real business outcomes.
What You'll Be Doing
Lead the design, implementation, and evolution of enterprise-scale AWS platform capabilities.
Define platform architecture, standards, and engineering best practices.
Build and enhance cloud infrastructure using Infrastructure as Code and automation-first principles.
Drive platform reliability, observability, security, resilience, and operational excellence.
Enable and support cloud-native application development across engineering teams.
Champion DevOps, SRE, CI/CD, and Platform Engineering practices.
Design and implement capabilities that support AI, machine learning,



and Generative AI workloads.
Partner with Architecture, Security, Data, and Engineering leaders to align platform strategy with business objectives.
Mentor engineers and provide technical leadership across multiple delivery teams.
What We're Looking For
Essential Experience
Extensive experience in Platform Engineering, Cloud Engineering, DevOps, or Infrastructure Engineering roles.
Deep AWS expertise across services including:
EKS
ECS
EC2
Lambda
IAM
VPC
RDS
Route 53
S3
CloudWatch
Solid hands-on experience with:
Terraform
Kubernetes
CI/CD pipelines
Infrastructure as Code
Cloud Security
Observability and Monitoring
Platform Automation
Proven experience designing and operating enterprise-scale cloud platforms.
Strong stakeholder management and leadership capabilities.
Ability to influence technical direction and drive engineering excellence.
Highly Desirable
Experience supporting AI, Machine Learning, or Generative AI platforms.
Exposure to:
Amazon Bedrock
SageMaker
MLOps
Vector Databases
AI Governance Frameworks
LLM and GenAI Platform Architecture
Experience with Internal Developer Platforms (IDP) and Site Reliability Engineering (SRE).
AWS Professional Certifications.
Experience operating within large and complex enterprise environments.

📌 Principal Aws Platform Engineer (New South Wales)
🏢 Sestra People
📍 New South Wales