Sr. Software Engineer, Infrastructure

The role

You will own the Kubernetes footprint and build self-service infrastructure for other engineers. You will manage clusters, deployment, CI/CD, observability, identity, and cloud costs for the MarianaOS platform.

What you will do

• Own the Kubernetes footprint end to end including EKS, on-premises site clusters, upgrades, capacity, and autoscaling
• Build self-service infrastructure for other engineers to provision services, databases, and environments
• Make observability a default for every deployed service
• Extend the platform to on-premises and edge clusters
• Own cloud cost through visibility, budgets, and right-sizing
• Own identity, access, and secrets management
• Respond to infrastructure incidents and write runbooks to prevent future failures

Required qualifications

• 8-12+ years building and operating production infrastructure
• Real depth in Kubernetes including running and upgrading clusters and debugging layers below the application
• Strong software engineering fundamentals
• Hands-on experience with infrastructure as code (Pulumi, Terraform, or similar)
• Hands-on experience with GitOps-style continuous delivery
• Track record of building platforms other engineers adopted
• Practical observability experience with Prometheus, Grafana, and a log aggregation stack
• Fluency in Python or TypeScript
• Familiarity with AWS to make cost and architecture tradeoffs

Nice to have

• Experience supporting ML or data-intensive workloads (GPU scheduling, distributed training, pipeline orchestration)
• Experience with on-premise or edge infrastructure, industrial networks, or constrained-connectivity environments
• Startup experience in a rapidly scaling company
• Domain experience in manufacturing, industrial automation, mining, or capital projects

Before you apply

• Interview includes a conversation about a platform you have built
• Interview includes a working session designing a self-service capability
• Interview includes a hands-on exercise with infrastructure code

About the company

Mariana Minerals is a software-first, vertically integrated minerals company. They aim to supply critical minerals for energy, AI, and defense technologies by combining industry expertise with advanced software and automation.