Sandbar
AI & Machine LearningDirect Ashby career site

Senior/Staff Software Engineer

Location
New York City, NY · On-site
Job type
Full-time
Level
Lead / Staff
Experience
5+ years
Listed
21 days ago

Skills & highlights for this role

  • OAuth 2/OIDC
  • Python
  • webhooks
  • MCP servers
  • LLM agent tool integration
  • token lifecycle management

Also useful

  • Playwright
  • Chrome DevTools Protocol
  • prompt-injection defenses
  • scoped credentials

Stated benefits & perks

  • Health
  • Dental
  • Vision
  • 401k match
  • Unlimited pto

About

We’re looking for a strong generalist engineer to connect Stream to the software people already use. Stream is a self extension that listens, remembers, and helps you think through conversation, and the more of your world it can reach, the more useful it becomes.

Most software wasn’t built to work with an AI. Making it work means understanding how each application is built, finding the most reliable way in, and making that connection dependable for people who rely on it every day. You’ll own this work end to end, work directly with the founders, ship on the same real-time Python services the rest of Stream runs on, and help shape how others build on Stream.

Responsibilities

  • Build integrations between Stream and the apps, services, and AI tools people already use
  • Design how tools plug into Stream’s agent: tool definitions, result shaping, confirmation, and context passing
  • Own the integration layer end to end: OAuth and token lifecycle, least-privilege scopes, webhooks, rate limits, retries, and real-world failure modes
  • Build and operate MCP servers and clients in production
  • Work out reliable integrations for software without clean APIs
  • Instrument every integration so breakage is caught before users notice
  • Carry a share of the core backend and its on-call rotation

Qualifications

  • 5+ years building software, with strong Python and comfort owning a live, real-time service
  • Have shipped third-party integrations in production: OAuth 2/OIDC, token refresh and revocation, webhooks, API versioning, and vendor quirks
  • Understand software architecture well enough to work with applications you didn’t write
  • Have integrated tools into an LLM agent that real users depend on, and been accountable for actions completing
  • Hands-on MCP experience
  • Generalist range across backend, auth, client code, and agent logic; can take an open-ended problem to a shipped result without a spec
  • Product sense for software that acts on someone’s behalf, including when the user isn’t looking at a screen
  • Communicate precisely and make tradeoffs explicit

Nice to have

  • Connector or plugin work at an AI product
  • Browser automation (e.g. Playwright, Chrome DevTools Protocol)
  • Integration security: scoped credentials, secret storage, prompt-injection defenses, audit logging
  • Voice or multimodal assistant experience
  • Developer documentation other engineers have built on

FTE Benefits

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

About Sandbar

Sandbar is an interface company in New York City. We aim to expand human thinking. Our team has built software, ML, hardware, and consumer products across Meta, CTRL-labs, Apple, Peloton, and Equinox.

Our first product is Stream, is private voice ring that extends your thinking. Stream has been featured in WSJ, Bloomberg, Wired, and Time's Best Inventions of the Year.

Join us in creating technology that extends human thinking.

Read the original posting

From Sandbar's careers page, first listed on Rolev.ai on October 19, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Senior/Staff Software Engineer job at Sandbar located?

This Senior/Staff Software Engineer position at Sandbar is located in New York City, NY (On-site). Always check Sandbar's application page for specific state eligibility or relocation policies.

What qualifications are required for Senior/Staff Software Engineer at Sandbar?

For the Senior/Staff Software Engineer role, Sandbar highlights 5+ years of relevant experience; experience with OAuth 2/OIDC, Python, webhooks, MCP servers, LLM agent tool integration, token lifecycle management. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Senior/Staff Software Engineer position at Sandbar?

This listing links directly to Sandbar's Ashby application page. You can apply directly on Sandbar's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.