Stratus

Principal AI Engineer

Remote (United States) · Principal · Contract

Sponsorship not specifiedDetected 17 days ago

C#Data StructuresAlgorithmsMachine LearningLLMsAgentic AILangGraphAI OrchestrationCommunicationPlain LanguageAdaptabilityBIM

About the role

Establish evaluation, guardrails, and failure-mode analysis for agent systems; including offline eval suites in CI and live production sampling, to ensure they are safe, reliable, and grounded.
Set up observability and tracing for agent behavior; diagnose cost, latency, and hallucination issues in production.
Contribute to agile workflows, ensuring flexibility and responsiveness to evolving project needs.

Design and build agentic workflows: multi-agent orchestration (e.g., LangGraph, CrewAI, AutoGen), tool calling, structured outputs, multi-step planning, and human-in-the-loop checkpoints, to automate complex MEP engineering tasks.
Build the tool and context layer connecting agents to Stratus data via internal and customer-facing APIs (e.g., MCP), including context-window management, permissioning, and cost control.
Integrate Stratus's published design and fabrication data into agent workflows.
Set technical direction for a small cross-functional team; mentor engineers and drive AI engineering best practices.
Perform requirements analysis with senior stakeholders, ensuring solutions meet immediate product goals and longer-term objectives.
The Principal AI Engineer builds the agentic intelligence layer for Stratus - the production agent systems, tool integrations, and evaluation infrastructure that let our products reason over MEP fabrication data and act on a contractor's behalf.

Required: 6-8+ years of software engineering experience, with a proven track record of shipping and operating production-grade systems - not just prototypes or notebooks.
Degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Experience with MCP or similar tool-integration protocols.
Familiarity working with data derived from CAD/BIM or other 2D/3D model sets.
Proficiency in C# and strong software development practices.
Background in customer-facing or professional-services roles.
Bias toward putting your ideas out there and failing fast.
After you join the team, we'll verify your eligibility to work in the U.S. by submitting information from your Form I-9 to the Social Security Administration and, if needed, the Department of Homeland Security.
This process happens post-hire only - we never use E-Verify to pre-screen applicants.
E-Verify Notice Right to Work Notice

Act as a technical translator to executives and customers - explain agentic systems in plain language and stand behind the workflows you ship.
You will design multi-agent workflows, build the tool and context layer that connects agents to Stratus data, and own the guardrails, evals, and observability that make those systems safe and trustworthy in front of customers.
As a Principal Engineer, you will set technical direction for a small, fast-moving team, mentor engineers, and act as a credible technical voice to executives and customers - translating how these systems work into plain language.

This listing is sourced directly from Stratus's careers page and normalized into a canonical job model.