# Prototype Engineer

**Company:** [Higharc](https://hotfix.jobs/companies/higharc)
**Location:** Remote
**Role:** ML Engineering
**Experience:** 4+ years
**Skills:** Python, TypeScript, React, PyTorch, Hugging Face, OpenAI, Anthropic, RAG, LangChain, Crewai, API Design, CI/CD
**Posted:** 2026-03-30

> Integrates AI/ML research prototypes into production platform, bridging research and engineering teams. Builds orchestration for autonomous agents in homebuilding, works across Python backend and TypeScript/React frontend with 4+ years experience shipping AI features.

## Job Description

## What You'll Do
- Design and develop tools that expose AI/ML capabilities to autonomous agents, building the orchestration layer that solves complex domain use-cases in production homebuilding.
- Take proven research outputs and integrate them into the Higharc product as packages and components, following best practices established in a large, complex codebase.
- Work across the Python ML/AI service layer and the TypeScript/React product, wiring new capabilities end-to-end via API.
- Build frameworks for rapid evaluation, iteration, and promotion of prototypes.
- Operate in lock-step with the broader engineering organization and participate in customer-facing labs sessions, using direct customer signal to validate prototypes and inform iteration priorities.
- Serve as the primary translation layer between the research team and the product engineering team. Convert experimental notebooks, fine-tuned models, and RAG pipelines into maintainable, testable, deployable code.
- Develop working knowledge of the homebuilding domain sufficient to make independent judgment calls about which capabilities matter, which edge-cases are load-bearing, and where AI falls short in the built environment.

## About You
**Required:**
- 4+ years of professional Software Engineering experience, with 2+ years integrating ML/AI capabilities into production products
- Shipped AI-powered features to real users, not just model training
- Experience working in or adjacent to a research team
- Professional proficiency with Python, Typescript/React, API design, LLM tooling, evaluation design, and AI calibration
- Familiarity with LLM APIs (OpenAI, Anthropic, or open-source), vector databases, RAG architectures, Python ML ecosystem (PyTorch, HuggingFace), modern frontend frameworks (React/Next.js), CI/CD and testing frameworks

**Major plus:**
- Experience in construction, AEC, or other physical-world domains with messy, under-structured data
- Experience with agentic frameworks (LangChain, CrewAI, or custom harnesses)

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**Canonical:** https://hotfix.jobs/jobs/83fdf152-7d2c-4c36-b28e-c12ff8b80a92