Software Engineer (RTC focus)

Fixie.ai
Fixie.ai

Software Engineering

Posted on Jun 23, 2026

About Fixie

We’re a Seattle-based AI startup (with support for working remotely). We’ve raised $17M in seed funding. Our vision is simple: build artificial intelligences that can communicate as naturally as humans. We’re a small team of researchers and engineers with a deep focus in speech and real-time technologies. Our core model, Ultravox, is open-source. We also build a serving stack that’s optimized for very low-latency interactions.

What you’ll do

  • Unify the AI and Real-Time Communication (RTC) worlds by developing new techniques for running AI models in real time and streaming their outputs over WebRTC.
  • Continuously work to reduce streaming latency across our service.
  • Evaluate various model providers to find the best match of capabilities and performance.
  • Build new product features for our consumer product.
  • What we’re looking for

  • An incredibly strong coder with a track record of contributions to RTC apps and systems.
  • Highly skilled with WebRTC and deploying and debugging WebRTC-based applications.
  • Experience with tools like WebRTC Internals, Audacity, FFMpeg, and Wireshark.
  • Ability to roll up your sleeves and get things done.
  • A great communicator and team player.
  • No experience with AI or Large Language Models is expected; this is a great opportunity to dive in and learn this field!

    Benefits

  • Generous equity package
  • Unlimited PTO (take time when you need it)
  • Top-of-market salary
  • Great healthcare
  • 401k with match
  • Apply