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AI/ML Engineer, Lead

Sandbar

New York, NYFull-time$170–240K/yrPosted 7mo agoStill listed 4 days ago

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At a glance

Compensation
$170–240K/yr
Location
New York, NY
Schedule
Full-time
Work Authorization
Not specified

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Job overview

Sandbar is hiring an AI/ML Engineer, Lead. Sandbar, a New York City interface company, seeks a Lead ML Engineer to architect, build, and deploy Stream, a conversational interface that extends human thinking, focusing on real‑world ML deployment and human‑in‑the‑loop agentic interactions.

Key focus areas include Lead architecture, strategy, and tradeoffs for ML-based products, Design and improve user-facing model-based experiences, including agentic control, conversational interactions, and information retrieval, and Develop infrastructure to rapidly develop, evaluate, and deploy models.

Successful candidates bring 6+ Years Machine Learning Experience, Experience Shipping ML-Based Products, and Experience In Large-Language Model Evaluation And Post-Training. Important skills include Architect ML-Based Products, Design User-Facing Model-Based Experiences, Develop Infrastructure For Model Deployment, Optimize Inference Pipelines, Writing Production-Grade Software, and Human-Computer Interaction.

Skills & qualifications

RequiredNice to have

Skills

Architect ML-Based ProductsDesign User-Facing Model-Based ExperiencesDevelop Infrastructure for Model DeploymentOptimize Inference PipelinesWriting Production-Grade SoftwareHuman-Computer InteractionSetting Technical DirectionDriving Execution With Multidisciplinary Teams

Qualifications

6+ Years Machine Learning ExperienceExperience Shipping ML-Based ProductsExperience in Large-Language Model Evaluation and Post-TrainingExperience in Audio / Voice ML

Benefits

Medical Insurance
Vision Insurance
Dental Insurance
401(k) Match
Paid Time Off

Full job description

About Sandbar

Sandbar is an interface company in New York City. We aim to augment individuals so we can each think, act, and move more freely. Our team has built SW, ML, and HW products across Meta, CTRL-labs, Google, Apple, Fitbit, Peloton, and Equinox.

Our first product, Stream, is a self extension—a private voice ring and conversational interface. Stream has been featured in WSJ, Bloomberg, & Wired, and begins shipping in Summer '26.

Join us in creating technology that extends human thinking.

About

We’re looking for a Lead ML Engineer to build Stream, a new conversational interface. As an ML Lead, you will architect, build, and deploy a new interface which spans agentic control, multimodal interactions, and information retrieval. This role is perfect for someone who cares deeply about real-world ML deployment and human-in-the-loop agentic interactions.

Responsibilities

  • Lead architecture, strategy, and tradeoffs for our ML-based products

  • Design and improve user-facing model-based experiences, including agentic control, conversational interactions, and information retrieval.

  • Develop infrastructure to rapidly develop, evaluate, and deploy models

  • Optimize inference pipelines for latency, reliability, and concurrency

  • Work closely with other ML/AI engineers, infrastructure engineers, designers, and cofounders on existing and future products

Qualifications

  • 6+ years in machine learning experience

  • Experience shipping ML-based products is required

  • Experience in large-language model evaluation and post-training is required

  • Experience in audio / voice ML is a plus

  • Comfortable writing production-grade software

  • Passion for human-computer interaction

  • Experience setting technical direction and driving execution with multidisciplinary teams

FTE Benefits

  • Health, vision, and dental benefits

  • Company-sponsored 401(k)

  • Unlimited PTO and sick time

  • Early stage equity

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