Sr. Software Engineer, Media

Xai · Palo Alto, CA; Seattle, WA · Engineering

Posted 2026-11-07

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SR. SOFTWARE ENGINEER, MEDIA

We’re looking for exceptional media engineers who want to join us on a new project to deeply integrate SpaceXSI's advanced AI infrastructure into a platform used by around 600 million users every month. We’re bringing SpaceXSI's technology stack and using it to transform the video product experience - video playback, live streaming, Spaces, audio/video calls, and more. This is your chance to contribute in a major way while leveraging all of the powerful AI tools and talented colleagues at SpaceXSI.

RESPONSIBILITIES:

Build the next generation of large-scale video services

Contribute to and rebuild core media processing and distribution pipelines in high-performance languages (Rust, C++, or Go)

Ensure end-to-end media quality and performance at scale across a rich suite of products and user platforms

BASIC QUALIFICATIONS:

5+ years of experience in building media, video, or streaming systems

Experience with high-performance C++ or Go

PREFERRED SKILLS AND EXPERIENCE:

In-depth knowledge of WebRTC, LL-HLS, or video transcoding pipelines

Experience building and running scalable and resilient distributed systems

Experience with one or more of the following languages: Go, C++, Rust, Java, or Scala

Experience with Kubernetes, FoundationDB, ValKey, Envoy, or S3

Familiarity with formats such as H.264, H.265, AV1, MP4, CMAF, VMAF, RTP, RTMP, LL-HLS, HDR, and DRM

Obsessed with media quality, performance, and product experience

COMPENSATION AND BENEFITS:

$180,000 - $330,000 USD

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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