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Software Engineer - Product (Mid to Senior)

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Julius

B2B

Software Engineer - Product (Mid to Senior)

San Francisco, CA; San Francisco, California, United States
On-site
Full-time
Posted Aug 6, 2026
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Opens the original job posting

Engineering
On-site

Compensation: Competitive base salary and meaningful equity

Benefits: Health & dental insurance, gym reimbursement, daily team meals, commuter benefits

We are an early stage applied AI startup building agents that automate knowledge work with code. 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, Facebook and Scale AI. We're making revenue and we're backed by some of best investors like AI Grant, YCombinator, Bessemer Venture Partners 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:

  • 3+ of experience with React, Next.js, Tailwind CSS

  • Strong understanding for frontend frontend primitives: component architecture, state management, streaming UIs, and performance profiling

  • Experience scaling applications and backend systems, have experience with relational databases, caching, background jobs, and auth.

  • 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

About the interview

  • Intro screen

  • Short paid work trial (2-3 days). Own and ship a project in Julius

Apply for this role
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Julius

Company profile

AI Data Scientist

View Julius

Headquarters

San Francisco, CA, USA

Team size

11-50

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