Platform Engineer – AI Sandbox & Production Infra

Leadout Capital; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Slack is building fast, isolated sandboxes for AI agents to run a full dev toolchain. This role owns production systems early, handling pager duties and guiding safe agent execution at scale.

You will scale the sandbox fleet, harden isolation, and improve remote dev environments. You should have strong Go/Python, AWS and Terraform skills, and be comfortable with on-call responsibilities.

Qualifications

• 3+ years of experience building and operating production systems.
• Experience in infrastructure, SRE, DevOps or platform engineering, with on-call responsibility.
• Strong AWS knowledge: EC2, networking, IAM.
• Proficient in Go or Python; infrastructure as code with Terraform.
• Experience with AI coding tools and integrating them into workflows.
• Ownership mindset; proactive in fixing issues.

Responsibilities

• Scale AI sandbox fleet with capacity planning, safe rollouts and image builds.
• Harden isolation between agents and Slack systems: network, secrets handling and patching.
• Run and improve remote dev environments, including Terraform and VM images.
• Build observability: SLOs, dashboards, and logs.
• Join weekly on-call rotation; fix issues and automate the fix.
• Work with AI agents; design platform needs they rely on.

Skills

Production experience

Go/Python

AWS

Terraform

On-call experience

AI tooling

Tools

Terraform

KVM/Firecracker

Job description

Slack is building fast, isolated sandboxes for AI agents to run a full dev toolchain. This role owns production systems early, handling pager duties and guiding safe agent execution at scale.

You will scale the sandbox fleet, harden isolation, and improve remote dev environments. You should have strong Go/Python, AWS and Terraform skills, and be comfortable with on-call responsibilities.