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Founding ML Engineer at BehaviorAI

Join BehaviorAI, a Cornell SciFi Lab spinout, as their Founding ML Engineer in Brooklyn. Backed by top-tier VCs and led by world-class experts from Cornell and Samsung Research, you’ll architect SOTA multimodal models for wearable sensors from scratch. With a $180K salary, 1% founding equity, and the chance to define how AI understands human behavior in the real world, this is a rare opportunity for a proactive engineer to lead technical innovation at the earliest stages.

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BehaviorAI

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Location

Brooklyn, United States

Compensation

$180k + 1% Equity

Company

BehaviorAI

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Role overview

As a Founding ML Engineer at BehaviorAI, you will architect and deploy state-of-the-art multimodal models for real-world time-series sensor data. You’ll design novel architectures from scratch—moving beyond simple fine-tuning—to power next-generation wearable intelligence. This hands-on role involves shipping direct-to-user solutions in a high-energy, proactive startup environment.

We are building AI models to understand human behaviors.

What you will do

  • Architect and deploy SOTA multimodal models (CV, NLP) specifically optimized for real-world time-series data from wearable sensors.
  • Develop and implement real-time inference and on-device machine learning capabilities to ensure low-latency performance in field settings.
  • Drive the technical roadmap for foundation models that integrate multi-modal sensing to deeply understand human behavior and intent.

Who this is a fit for

  • Proven experience processing real-world sensor or time-series data (e.g., image, IMU) with a focus on real-time inference and on-device ML.
  • Strong background in Foundation Models and multimodal sensing, with the technical ability to build and iterate on complex architectures.
  • High-energy, proactive mindset suited for an early-stage startup, with a willingness to own technical problems from research to final production.

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Why this role is remarkable

  • Work directly with founders Cheng Zhang (NSF CAREER Award winner) and Mehrab Bin Morshed (ex-Samsung Research) at the intersection of academia and industry.
  • Influence the core product by designing novel ML architectures from scratch rather than just fine-tuning existing models for specific hardware.
  • Join a top-tier VC-backed founding team with significant equity and the ability to shape a Cornell SciFi Lab spinout from day one.

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