Senior/Staff Software Engineer

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Senior/Staff Software Engineer in USA

Sandbar
Full time
Email

USA
10/20/2026
Report

New York, NY

Responsibilities

Build integrations between Stream and the applications, services, and AI tools people use.
Design tool definitions, result shaping, confirmation flows, and context passing for Stream’s agent.
Own integration infrastructure including OAuth, token lifecycles, least-privilege scopes, webhooks, rate limits, retries, and failure handling.
Build and operate MCP servers and clients in production.
Develop reliable integrations for software without clean APIs.
Instrument integrations to detect breakage before users notice.
Contribute to the core backend and participate in the on-call rotation.

Requirements

5+ years of software development experience, with strong Python skills and experience owning a live real-time service.
Production experience shipping third-party integrations involving OAuth 2, OIDC, token refresh and revocation, webhooks, API versioning, and vendor-specific behavior.
Strong software architecture skills and the ability to work with applications the candidate did not build.
Experience integrating tools into an LLM agent used by real users and being accountable for completed actions.
Hands-on MCP experience.
Generalist capability across backend development, authentication, client code, and agent logic, with the ability to take open-ended problems through delivery.
Product judgment for software that acts on a user’s behalf, including when the user is not viewing a screen.
Precise communication and explicit tradeoff-making.
Preferred experience includes AI product connector or plugin work, Playwright or Chrome DevTools Protocol, integration security, voice or multimodal assistants, and developer documentation used by other engineers.

Benefits

Health, vision, and dental benefits.
Company-sponsored 401(k).
Unlimited paid time off and sick time.
Early-stage equity.
Full-time employment; location details were not specified.

Salary: $190k - $260k/yr

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 Yor...

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