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Senior Software Engineer (CVI) at Series B multimodal AI startup

Are you a Python expert who thrives on the challenge of sub-second latency? You'll work at the intersection of research and production, integrating state-of-the-art models into WebRTC pipelines to create AI humans that see, hear, and respond naturally. If you have experience with concurrent programming and real-time systems, this is your chance to shape the future of human computing. Join a small, high-autonomy team in San Francisco and solve problems that don't yet have a playbook.

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Location

San Francisco, United States

Compensation

Not Disclosed

Company

Confidential company

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Role overview

Join a high-growth AI research lab as a Senior Engineer building real-time conversational humans. You will orchestrate multimodal pipelines involving ASR, LLMs, and video rendering over WebRTC with sub-second latency. Working at the intersection of research and product, you’ll ship end-to-end features that define the future of natural human-computer interaction.

About the company

Series B multimodal AI startup

What you will do

  • Orchestrate complex real-time multimodal pipelines (ASR, LLM, TTS, video) over WebRTC with a focus on sub-second latency optimization.
  • Collaborate with research teams to integrate state-of-the-art models for rendering, perception, and turn-taking into a live consumer-facing product.
  • Lead the development of interactive features like browser control and real-time knowledge bases to enhance the capabilities of conversational agents.

Who this is a fit for

  • Deep Python fluency with extensive experience in concurrent programming, including asyncio, multiprocessing, and managing the Global Interpreter Lock (GIL).
  • Proven track record of building and maintaining high-performance real-time systems where every millisecond of the latency budget matters.
  • Senior-level experience setting technical direction, making architectural decisions, and mentoring others while shipping complex features end-to-end.

Why this role is remarkable

  • Work at the cutting edge of human-computer interaction, building real-time “AI Humans” that feel as natural as talking to a friend.
  • Backed by top-tier venture capital firms and operating at the intersection of production-grade engineering and state-of-the-art AI research.
  • High-autonomy environment where you own entire features from architecture to deployment, solving novel problems with no established playbook.

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.
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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

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What happens next?

Jack’s an AI agent for job searching and career coaching. He works for you.

Jill is the AI recruiter working for the company. She recruits from Jack’s network.

If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.

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