About Forterra At Forterra, we are unleashing autonomy at scale to transform the battlefield. Backed by SoftBank VF.
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
More about this role
About the role
Forterra runs its engineering on agentic systems, not chatbots. Requirements, safety analysis, test generation, code review, and validation are increasingly performed by fleets of agents operating against Forterra's real systems of record.
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.
The hard part is not wiring an API. It is judgment, such as knowing which problems should be handed to an agent, which should stay deterministic, when to use a classical data analysis method, and how to prove an agent's output is trustworthy.
You will work across the entire company: systems engineering, safety, software, product, IT, cybersecurity, and executive level leadership. Almost none of it sits inside your reporting line. Influence and growth directly come from performance and earned credibility. You will have direct visibility to chief executive leadership.
What you'll do
- Design agentic systems, not prompts
- Author agent definitions and context as engineered artifacts, with explicit role separation, tool allowlists,...
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