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 (Sydney)
🏢 Sestra People
📍 Sydney