Founding AI/ML Engineer (Remote)

We are hiring a Founding AI/ML Engineer to architect and ship production-grade AI systems transforming one of the world’s largest and least automated industries — construction. This is a product-first AI engineering role focused on multimodal intelligence, document understanding, and agentic workflow automation. You will work directly with the Chief AI Officer and founders to move from low-automation to high-automation mode, where AI agents perform core operational work with light human oversight.

Location: Philadelphia, PA · New York City, NY · Washington, D.C.

Work Model: Hybrid / Remote-first with optional Philly hub

Employment Type: Full-Time

Experience Level: 6+ years

Equity: Competitive early-employee equity

Visa Sponsorship: H-1B available

Build and ship production-grade AI systems used daily by real customers

Design multimodal pipelines for drawings, specs, and construction documents

Build agentic workflows automating preconstruction tasks:

Build and improve:

Optimize model quality, latency, reliability, and cost efficiency

Prototype and iterate quickly on customer-facing AI features

Own systems end-to-end (experiment → deploy → monitor → improve)

Help shape engineering culture and long-term technical direction

6+ years of engineering experience

Experience at an early-stage, high-growth startup

Shipped production-grade AI systems to real customers

Hands-on LLM and/or computer vision experience

Retrieval systems experience (embeddings, chunking, grounding)

Agentic workflow experience (tools, APIs, state management, retries, guardrails)

Strong backend fundamentals:

Construction / AEC exposure

Multimodal AI or document intelligence background

OCR / segmentation / computer vision experience

Experience converting human-operated workflows into AI product systems

Inference optimization or evaluation system expertise

Meaningful early-employee ESOP grant

Employer-funded health insurance (Patch model)

Team / meal stipend

Growth path to technical leadership (optional management track)

Initial Screen (30 min)

Culture & Team Round

~2-hour Technical / Architecture Deep Dive

Optional On-Site (Philadelphia)

Offer