Senior Software Engineer, Infrastructure

About Sandbar

Sandbar is an interface company in New York City. We aim to augment individuals in an agentic world-to think, act, and move 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 new human-agent interface-a private voice ring and conversational computer. Stream has been featured in WSJ, Bloomberg, & Wired, and begins shipping in Summer '26.

Join us in creating a new interface for self augmentation.


About

We're looking for an experienced infrastructure engineer to help build Stream, a new conversational interface. You will be responsible for developing a highly scalable real-time production service with various steps of ML and data processing. You'll work closely with other mobile and firmware engineers to deliver the foundations for new human-computer interactions.

Responsibilities

• Architect a high-uptime, low-maintenance, and reliable distributed inference system
• Lead observability and oncall
• Achieve very low latency & jitter with attention to P99 performance
• Develop a safe rollout to production process in partnership with ML, SW, and mobile engineers
• Implement data pipelines for user-facing features and internal tooling

Qualifications

• Proficient in Python and Javascript
• Experience in shipping consumer facing interactive real-time services
• 2+ years owning a live production system in a small team, for large N of users
• 2+ years working in a big infra teams (Google / Meta / etc)
• Technical leadership for building a robust process with the team
• Strong ownership on healthy live service

FTE Benefits

• Health, vision, and dental benefits
• Company-sponsored 401(k)
• Unlimited PTO and sick time
• Early stage equity