Full Stack Engineering Internship (Summer 2026) at Mosaic (W25)
$5K - $8.5K / monthly
Create and run your own video editing AI agents
San Francisco, CA, US
Internship
US citizen/visa only
About Mosaic

Mosaic is an agentic video editing paradigm. It enables anyone to create and run their own multimodal video editing agents in a node-based canvas. Once created, Mosaic's AI agents can run edits on autopilot, be reused across video projects, and self-improve over time.

Our initial prototype of Mosaic won the $25,000 grand prize for 1st place out of 6,400 entrants in the Google Gemini Kaggle competition. Mosaic was also the winner of the SaaStr AI Pitch competition out of hundreds of other AI startups.

We are a highly technical team of ex-Tesla engineers and are looking for technical and high agency engineers to join us on our mission to build an agentic video editor.

About the role

What You’ll Do

As an intern, you will be working to accelerate the development of our core agentic video editing paradigm.

Other work will include building scaleable pipelines around video processing and inference, creating thoughtful evals, and helping to make high-level design and product decisions.

What we’re looking for

If you like to solve hard technical challenges from first-principles thinking, you’re a right fit for this role. We’re looking for interns with:

  • Previous founding or startup experience
  • Strong analytical and communication skills
  • Strong software engineering skills (preferably also applied AI experience)
Technology

We're on the frontier of what multimodal AI and agentic systems are capable of, and we're applying these to video — one of the most technically challenging mediums to work with.

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