SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.
SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.
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 - $440,000 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.
SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
Skills Required
- At least 5 years of experience
- Proficiency in high-performance C++ or Go
- In-depth knowledge of WebRTC, LL-HLS, or video transcoding pipelines
- Familiarity with building and running scalable, resilient distributed systems
- Strong focus on media quality, performance, and product experience
- Experience with Go, C++, Rust, Java, or Scala
- Experience with Kubernetes, FoundationDB, ValKey, Envoy, or S3
- Knowledge of H.264, H.265, AV1, MP4, CMAF, VMAF, RTP, RTMP, LL-HLS, HDR, or DRM
xAI Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about xAI and has not been reviewed or approved by xAI.
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Healthcare Strength — Healthcare is described as comprehensive, including medical, dental, vision, mental health support, and fertility benefits. Additional protections such as disability and life insurance, plus HSA/FSA options, are also outlined.
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Equity Value & Accessibility — Equity is positioned as a core component of total rewards alongside high base salaries for technical roles. Pre‑IPO stock grants are highlighted as enabling participation in potential company growth.
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Leave & Time Off Breadth — The package includes flexible or generous PTO, paid holidays, and paid sick days. Company materials also describe flexible vacation policies intended to help manage fast‑paced workloads.
xAI Insights
What We Do
Understand the Universe
