Staff AI Harness Engineer — Enterprise-Grade Procurement AI

Atmospheric AI Limited; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Job summary

Atmospheric AI Limited is building a ground-truth economics and procurement platform that models material costs and carbon exposure. You will design a scalable tool layer, orchestrate modular AI agents, and ensure context is governed with traceable sources.

You’ll implement evals, guardrails and performance benchmarks to outperform general AI in procurement tasks. The role blends engineering depth with product impact, requiring strong Python and frontend capability to land results in UI

Qualifications

• Built high-scale platforms for enterprise clients.
• Created dependable AI systems with verifiable evals and guardrails.
• Led end-to-end ownership of technical domains and raised team capability.
• Iterated rapidly with practical delivery in days.
• Daily use of AI to drive tooling and automation.

Responsibilities

• Expose physics model as composable tools that others build against.
• Design orchestration of models and how work is decomposed and run.
• Assemble and ground context with sources within budget.
• Ship and evaluate modules with clear performance benchmarks.
• Define runtime guardrails for cost, latency and failure modes.
• Lead future work into specialised models as trust grows.

Skills

Python

TypeScript

React

Tools

Dagster

Postgres

FastAPI

AWS

LangGraph

Pydantic AI

Next.js

Job description

Atmospheric AI Limited is building a ground-truth economics and procurement platform that models material costs and carbon exposure. You will design a scalable tool layer, orchestrate modular AI agents, and ensure context is governed with traceable sources.

You’ll implement evals, guardrails and performance benchmarks to outperform general AI in procurement tasks. The role blends engineering depth with product impact, requiring strong Python and frontend capability to land results in UI