Site Reliability Engineer (SRE)

About Mithril

Mithril is an AI infrastructure platform built to make GPU compute more accessible and affordable for the world’s leading enterprises, AI startups, and the AI research community, including LG AI Research, Saronic, and the Broad Institute (among many others).
Founded by a former Google DeepMind research scientist and Stanford CS PhD, Mithril has raised $80M across seed and Series A funding led by Sequoia Capital & Lightspeed Venture Partners. Platform revenue has grown >6x over the past year, and we were recently recognized by Fast Company as the 8th Most Innovative Company in Artificial Intelligence for 2026.

Our engineering team is lean and high-impact. This role is a core infrastructure hire that will shape how Mithril scales its platform across a heterogeneous, multi-cloud environment.

About the Opportunity

You will be a core contributor to the stability and performance of Mithril's global GPU orchestration platform. This is not a 'keep the lights on' role — you will build the automation, observability, and tooling that allows Mithril to coordinate advanced compute across multiple cloud providers at scale, ensuring customers have fast, reliable access to the infrastructure they need.

You will work directly with our founding team on high-impact infrastructure decisions — from SLO design to capacity orchestration — with clear visibility into the technical and commercial dynamics of the business.

What Makes This Role Different

Most SRE roles at this stage are primarily reactive — on-call, incident management, keeping services stable. At Mithril, you'll also be building infrastructure that directly shapes how our marketplace operates: how supply is sourced, allocated, and monitored across providers. The systems you build will have a direct line to customer experience and company revenue.

You'll have real ownership, a short feedback loop to leadership, and the opportunity to define how infrastructure engineering operates as the company scales.

Core Responsibilities

Platform reliability and infrastructure automation are the primary focus of this role (~70–75% of time).

Reliability & SLOs

• Implement and own SLIs and SLOs across Mithril's API layer and internal orchestration services to ensure customer commitments are met.
• Partner with Product and Platform teams to ensure new features are designed for operability, reliability, and performance from the start.
• Participate in an on-call rotation; drive root cause analysis (RCA) for production incidents and implement durable fixes to prevent recurrence.

Observability & Monitoring

• Build and maintain dashboards, alerts, and distributed tracing within Mithril's monitoring stack to provide high-granularity visibility into our multi-cloud infrastructure.
• Own the tooling that surfaces supply-side signal — GPU availability, provider health, reservation fill rates — to both engineering and operations teams.

Infrastructure as Code & Automation

• Develop and maintain Terraform/Pulumi modules and Kubernetes configurations to manage Mithril's growing multi-cloud provider footprint.
• Write clean, maintainable Python (or Go) to automate repetitive operational tasks — from provider API reconciliation to automated health checks and capacity rebalancing.

Capacity Support

• Assist in managing GPU capacity across providers, ensuring the marketplace can dynamically respond to supply fluctuations and customer demand signals.
• Surface capacity constraints and failure modes early; contribute to the tooling that enables Mithril to make fast, data-driven supply decisions.

Requirements

The profile we're hiring for combines