Backed by Index.
About the role
We are looking for an Infrastructure Engineer who thrives on the complexity of modern deployment patterns. You will own the infrastructure roadmap from design to operation, ensuring our platform is resilient, compliant, and ready for global scale. Architect Multi-Cloud Environments: Design and scale multi-region architectures across AWS and GCP to support global data residency and failover requirements.
What they're looking for
- 5+ years of experience building production-grade infrastructure in a high-growth environment
- Cloud Polyglot: Deep expertise in AWS is required, experience with GCP or Azure is a major plus
- Networking Guru: Deep understanding of DNS, Load Balancing, Service Meshes, and complex VPC routing
- IaC Architect: Proven track record managing large-scale environments using Terraform, Pulumi, or other production-ready, battle-tested IaC tools with a focus on reusable, modular infrastructure
- Operational Mindset: Experience with modern observability (Datadog, OpenTelemetry) and a "you build it, you run it" mentality
- Communication: Ability to write clear technical specs for both internal teams and external customers
More about this role
Simile is The Simulation Company. We simulate human behavior to keep people at the center of the decisions that shape the world. With AI, anyone can create a product, a campaign, a policy, or a script — the bottleneck has moved upstream. The hard question is no longer whether you can create something, but what to create, for whom, and how to bring it to life. Those are fundamentally human decisions, and they shouldn't be left to chance or handed off to an algorithm. We're building the infrastructure to understand human behavior at scale and to represent humans in an increasingly agentic world. Our mission is to simulate all eight billion people on earth.
We launched five months ago. Since then we've grown revenue 5x, built a new foundation model for human behavior that has run tens of millions of simulations for F100 enterprises, trained a first-of-its-kind confidence model that predicts the accuracy of every simulation, and released the first product that lets organizations verifiably predict the future. The world's leading companies use Simile to make business-critical decisions — from consumer leaders like CVS Health and Wealthfront to professional services organizations like...
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