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Full Stack Engineering Internship Summer 2026

San Francisco,...
M

Mosaic

Startup
Category
Technical
Experience
4-7 years
Type
Internship
Location
San Francisco, CA, US
Salary
$5,000 - $8,500
Job Description
Benefits & Culture
Flexible hours
Remote work
Paid time off
Fast-paced environment
Direct feedback
Growth opportunities
This goes straight to the founder
Share on: TwitterFacebookLinkedInHacker NewsReddit

No recruiters. Founders reply directly.

Founder Signals
Response Rate
85%
Avg Response Time
2 hours
Compensation Calculator
In startups, higher salary usually means lower equity.
Salary (affects equity %)
Link salary ↔ equity
$125,000
$5,000$8,500
Equity % (auto from trade-off model)
0.51%
0%5%
Projected Exit Value
$350,000,000
$10M$500M
Live Trade-off
Salary
Equity %
Est. Equity Value at Exit
$100,000
0.51%
$892,500
$125,000
0.51%
$892,500
$150,000
0.51%
$892,500
$175,000
0.51%
$892,500

Advanced Salary & Equity Calculator

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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:

  1. Previous founding or startup experience
  2. Strong analytical and communication skills
  3. Strong software engineering skills (preferably also applied AI experience)