# AI Platform Engineer at Forterra

- Company: Forterra
- What the company does: About Forterra At Forterra, we are unleashing autonomy at scale to transform the battlefield. Backed by SoftBank VF.
- Company website: https://www.forterra.com/
- Type: Startups (AI role)
- Level: Mid level
- Location: Arlington, VA
- Work setup: On-site
- Pay: $125K to $145K base salary per year (USD)
- Posted: 2026-08-07
- Apply by: 2026-10-08
- Apply: https://ats.rippling.com/forterra/jobs/e727144a-46c1-4efc-a15e-1f1bb70b0ac8
- Page: https://www.1752.vc/careers/jobs/forterra-ai-platform-engineer/

## About the role

This role builds and owns that substrate: the agent definitions, skills, MCP servers, guardrails, and evaluation harnesses that determine whether hundreds of engineers get leverage or just burn tokens.

## What they're looking for

- Design agentic systems, not prompts
- Author agent definitions and context as engineered artifacts, with explicit role separation, tool allowlists, model selection, and hard behavioral limits
- Design multi-agent architectures where roles are adversarial and reliable by construction
- Build skills with disciplined triggering, progressive disclosure, and non-overlapping ownership boundaries - so capability scales without the context window collapsing
- Orchestrate work across multiple model vendors, harnesses, and agent runtimes
- Make and defend the call on whether a problem warrants an agent at all. Know when a deterministic script or webhook is the correct answer, and how to engineer away from an agent left polling in a loop

Tags: Core Product