Senior Software Engineer - Frontend

Julius Ai
San Francisco, CA

Compensation: Competitive base salary and meaningful equity

Benefits: Health & dental insurance, gym reimbursement, daily team lunches

We are an early stage applied AI lab building coding agents. We’re on a mission to enable one billion humans to become software creators, and we are starting with a focus on data science and analysis use cases.

Today, Julius writes and executes 1 million lines of code every 36 hours, has served over 1 million users and generated over 3 million data visualizations.

We're a small technical team with experience from Uber, Microsoft and Facebook. We're making revenue and we're backed by some of best investors like AI Grant, and founders of Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, Dropbox and researchers from OpenAI and Google DeepMind.

Building intuitive and performant user interfaces is critical to making Julius easy to use for over 1 million users. Our interface has several moving parts including tool use, multi-step reasoning, code generation, code execution, file and secrets management, and more. You will get to define and build the experiences for all of these as we scale to our future milestones.

What you'll do:

  • Build products that bring AI capabilities to millions of people

  • Design and implement intuitive, responsive, and performant user interfaces

  • Optimize application performance and ensure cross-browser compatibility

What we're looking for:

  • 4 to 6 years of experience with React, Next.js, Tailwind CSS and Figma

  • Examples of live projects or products you've built

  • Bonus points: You have built an AI side project before, and like prompting and playing with LLMs

Posted 2026-01-07

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