Senior Platform Engineer
At a glance
Senior Platform & Infrastructure role at Immutable. Sydney · full-time.
Pay not stated Platform Engineer salary
devopsroles summary, based on the employer's posting.
What you'll do
- Own and improve the AWS and EKS foundations, including the network layer and the services running above it
- Build and ship Terraform-based infrastructure, and work with security, product and data teams on platform needs
- Set service health targets and build monitoring, alerting and incident response practices across the organisation
- Track system reliability, scale and performance, then address weak spots and improve incident automation
- Maintain the services your team owns by reducing technical debt and introducing better architecture patterns
What you bring
- Strong AWS skills, with EKS or Kubernetes, networking, multi-AZ systems and serverless experience
- Practical Terraform, CI/CD and observability experience, plus confidence writing Go or learning new languages quickly
- Experience owning data reliability and observability, including freshness, anomaly or schema-change checks and data SLOs
- You’ve handled on-call responsibilities and can explain how a silent failure changed your approach
Who this fits
This suits a hands-on senior individual contributor who can bridge infrastructure and application development, set priorities with limited direction, and own work through operation. The team works from its Sydney office three days a week, with a shared voluntary on-call rotation and a build-it-and-run-it approach.
From the employer
A bit about the role 🤔
We're looking for a Senior Platform Engineer to join our Platform team. This is a hands-on individual-contributor role for someone who sits genuinely in the middle, real infrastructure ownership and application development.
Our Platform team exists to accelerate the rest of engineering. As our product teams build out Immutable Audience, our job is to make them faster and safer, removing toil, clearing blockers, and building the paved roads and self-service tooling that let teams ship without reinventing the foundations each time. It's a broad remit. In any given cycle you might be extending our internal Kubernetes operator (written in Go) that provisions services and their supporting AWS resources from a single manifest, improving our observability patterns, hardening reliability, or helping a team choose and integrate a new piece of technology.
You'll work across the full stack of how we run software, a primarily AWS environment on EKS, GCP powering our data and CDP platform, Terraform, GitOps with Flux, and a Go backend. You'll own things end to end, set your own priorities with light direction, and have real influence over decisions that we'll build on for years. We're back in a scrappy scale-up phase, so there's a lot of room to shape foundations rather than inherit them.
We lean heavily into AI across engineering, from day-to-day tooling to agents in our development and incident workflows, and we care as much about how you interrogate what AI produces as how quickly you use it. We're flat, light on process, and we operate a you-build-it-you-run-it model with a shared, voluntary on-call rotation. The team is Sydney-based and in the office three days a week.
This role would suit an engineer who's spent time deep in infrastructure and grown into code, or deep in code and grown into infrastructure, and who wants to own a broad surface area on a lean team rather than a narrow slice on a large one.
You'll Be Empowered To 🎮
- Own and evolve our AWS and Kubernetes (EKS) foundations, from VPC upwards
- Develop and release Infrastructure as code
- Partner closely with security, product and data teams, understanding what they're building and how the platform supports them
- Define SLOs, SLIs, monitoring, alerting and incident response practices.
- Set the bar for observability excellence within the organisation
- Measure systems' health, scalability and performance metrics and identify areas of improvement.
- Ensure our incident management processes, automation, and remediation are world-class
- Work as a deep technical expert on the services we have ownership over (e.g., cleanup tech debt, maintenance, new architecture patterns)
We'd Love You To Bring 🤝
- Hands-on ownership of data reliability and observability: freshness, anomaly and schema-drift monitoring and data SLOs
- Deep AWS fundamentals: EKS/Kubernetes as a day-one runtime, Lambda/serverless, networking, multi-AZ
- Infrastructure-as-code (Terraform), CI/CD, and observability experience
- A real silent-failure story, caught or missed, that changed how you work
- Solid Go (or a strong track record of picking up new languages fast)
- Comfort with AI-assisted development
- Experience with identity resolution and consent or auth data modelling
- On-call ownership with considered views on alert fatigue
- High ownership, candour and a pragmatic, fix-it-while-live disposition
Bonus Points For ✅
- Prior experience in gaming, MarTech or high-volume consumer data
- Exposure to identity and consent platforms or migrations
- Interest in Gaming
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