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["AI","Software Development","Developer Tools","SaaS"]

Applied AI Engineer

San Francisco, CAOnsiteFull Time$160,000–$260,000 /yrPosted 10 days agoHidden Gem · YC Startup

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Required skills

  • AI tools
  • AI models
  • AI agent
  • eval systems
  • self-improving agent loop
  • context engineering
  • post-training

Nice to have

  • first-principles thinker
  • distill complex problems

Role summary

Magic Patterns is seeking an Applied AI Engineer to join their growing engineering team in San Francisco. This role involves owning the eval system for a self-improving AI agent loop and pushing the boundaries of AI in design. The ideal candidate will have experience with AI tools, models, and agents, and a strong understanding of building eval systems, post-training, and context engineering. This is an opportunity to contribute directly to a product used by thousands of users daily and to shape the future of AI in design.

Hey, I’m [Teddy](https://www.linkedin.com/in/teddy-ni/), CTO & co-founder at Magic Patterns! Our engineering team has grown a lot over the last few months here in San Francisco. you can check out our careers page here:

**About Magic Patterns**\
Our mission is to let anyone build delightful software. We're a lean team where everyone contributes directly to the product.

If you’re an AI engineer, our roadmap is probably a goldmine of things you’ve always wanted to work on:

* An AI agent that thousands of users use religiously everyday
* Evals with a self-improving agent loop
* Context engineering
* Post-training on design output

The most common piece of feedback we get is "I tried a bunch of tools but your design quality output is by far the best." We want to push the limits even further.

**About this role**

* Own our eval system that feeds into our self-improving agent loop
* Push and define the limits of what AI can do in design. Today, we are state of the art, and we want to continue to push that.
* Collaborate with the product team to bring novel solutions to improve agent quality from the perspective of our users
* Decide what to work on to improve our AI Design agent. The list above are open problems, not assignments

**This role might be a fit if you...**

* Use AI tools in your daily workflow
* Have experience with AI models and/or have worked on an AI agent before
* Have experience building eval systems, post-training, context engineering
* Strong first-principles thinker that can distill complex problems

**Our Values**

1. Obsessive — we love exploring every corner of the hardest problems.
2. Growth-minded — where you are today matters less than how fast you are growing
3. Ownership — insist on high standards and craftsmanship.
4. Spread the magic — for many people, Magic Patterns is “magic.” Be proud of your work and have fun!

**Compensation and benefits:**

* Rapid career growth at one of the fastest growing Series A companies
* Competitive salary and equity package
* 20 days off PTO
* Health, dental, and vision coverage
* Fun team offsites and events — we went to Mexico last year!
Ready to apply?
You'll be redirected to Magic Patterns's application page.

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