> Markdown version of [/jobs/ext/4418928-design-engineer-in-san-francisco](https://www.wearedevelopers.com/jobs/ext/4418928-design-engineer-in-san-francisco). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Design Engineer in San Francisco - **Company:** Energy Jobline - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Salary:** $125,000.0 - $300,000.0 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Cursor, PostgreSQL, Node.Js, Redis, Next.js, TypeScript, Web Applications, ReactJS, Claude Code - **Published:** October 18, 2026 - **Apply:** https://www.energyjobline.com/job/design-engineer-san-francisco-31984014 ## About the Role * Designed and implemented of a successful, full-stack product * An excellent portfolio showcasing your design work * Watched users interact with your software and quickly iterated until they loved it * Strong experience with a modern web app stack (React, Typescript, Node.js) * 2+ years of product experience Tech stack Typescript, React, NodeJS, Postgres, Redis, Vercel, Cursor/Claude Code/Codex, Tinker, Modal, AWS, Daytona, GRPO ## Description As a Design Engineer at idler, you'll own the visual design and user experience for our customers and internal team. You'll be tasked with producing beautiful applications, pages, interactions, and marketing materials that are a delight to view and use. Our RL environments are novel, complex artifacts that need to be easy to interact with and communicated well. You'll need a founder's high-level thinking, a designer's taste, and an engineer's precision to succeed. Examples of what you'll do * Create a unified UI, layout and UX paradigm for inspecting and interacting with our RL environments that serves frontier labs and our internal team * Build a standard library and templates for our marketing materials that are beautiful and compliant with design best practices * Instrument and visualize our environment tracking system across hundreds of discrete steps and iterations per artifact