Senior Infrastructure Engineer

Manufact (YC S25); San Francisco (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

Manufact (YC S25), based in San Francisco, is seeking a cloud engineer to build and operate their cloud platform hosting customer MCP servers. You will set up observability systems, ensure security, and maintain system reliability as user load increases.

The ideal candidate has extensive experience with cloud systems, Kubernetes, and observability tools. Join a fast-growing startup and take ownership of critical infrastructure design and implementation.

Qualifications

• Experience building and operating cloud systems end to end.
• Knowledge of observability tools for monitoring cloud health.
• Familiarity with multi-tenant systems and infrastructure ownership.

Responsibilities

• Build the cloud platform that hosts customer MCP servers.
• Set up monitoring and observability across all MCP servers.
• Create tooling for customers to deploy Manufact in private clouds.

Skills

Cloud system operations

Observability stack experience

Kubernetes

Terraform

Containerized systems

Tools

ClickHouse

Prometheus

OpenTelemetry

Grafana

Job description

What you'll do

• Build the cloud platform that hosts customer MCP servers with millions of tool calls.
• Set up monitoring, observability, and dashboards across every MCP server on Manufact Cloud and the full stream of events and logs we ingest, so problems surface before users feel them.
• Build alerting and error handling that flags threshold breaches and failures in real time.
• Make sure the platform scales as we add thousands of users and capture a growing share of global AI tool calls.
• Create the tooling and technical blueprints that let customers deploy Manufact into their own private clouds (AWS, Azure, GCP) on their own terms.
• Build the security boundaries that keep each customer's data private and isolated within their own environment.
• Own where our code lives and how it ships: code hosting and the release pipeline.
• Keep the system fast and reliable as companies add more MCP servers.

Requirements

• You have built and operated cloud systems end to end and know them inside out.
• Experience standing up the observability stack that keeps a cloud healthy: logs, metrics, traces, dashboards, and alerting at scale.
• Kubernetes or Terraform, and containerized multi-tenant systems.
• Comfortable being the first person to own infrastructure at a fast-growing startup.
• Based in or willing to relocate to San Francisco.

Nice to have

• Hands‑on with observability tooling such as ClickHouse, Prometheus, OpenTelemetry, Grafana.
• Experience running a platform that others deploy onto (PaaS‑flavored).