
Sandbar
Sandbar builds Stream, a private voice ring and companion software that lets people interact with AI agents and apps hands-free. The company designs hardware, machine-learning models, and consumer software, selling a wearable device with a supporting platform. Founded in 2023 and based in New York City, its team includes alumni of Meta, CTRL-labs, Google, Apple, Fitbit, Peloton, and Equinox.
Open Positions at Sandbar
7 open positions
Sandbar is hiring a Senior/Staff Software Engineer to connect its Stream voice assistant with the software, services, and AI tools people use every day. You’ll own integrations end to end, build on real-time Python services, and shape how Stream’s agent acts reliably on users’ behalf.
Sandbar is seeking a senior/staff backend security engineer to build the privacy and security foundations of Stream, a real-time conversational interface. You’ll own encryption, identity, confidential computing, detection and response, compliance automation, and secure backend features in production.
Lead the hands-on development of Stream’s personalized, privacy-focused agentic and conversational experiences. You will set ML technical direction, build customer-facing products, and guide a focused team working across model evaluation, post-training, and inference.
Build Stream, Sandbar’s conversational human-agent interface, across desktop, web, and other surfaces. This full-stack product engineering role combines software development, interaction design, and consumer product development.
Build and deploy audio and voice machine learning systems for Stream, Sandbar’s conversational computer. This role focuses on real-world ML deployment, efficient inference across cloud and on-device environments, and human-in-the-loop agentic interactions.
Build the real-time infrastructure powering Sandbar’s conversational interface, with ownership of distributed inference, data pipelines, reliability, and production performance. You’ll partner across ML, software, mobile, and firmware teams to deliver a low-latency service at scale.
Build Stream’s iOS experience as a senior product engineer, spanning Swift architecture, device connectivity, on-device processing, and user-facing interaction design. You’ll work across iOS, backend, firmware, and product teams to create a technically rigorous conversational interface that feels simple.