Dex Verified
Software, Productivity Tools, Personal CRM
Summer 2026 Full-Stack Engineer Intern
San Francisco, California, United StatesOnsiteInternshipJunior / Entry-level$6,000–$10,000 /yrPosted 2 months agoHidden Gem · YC Startup
Role summary
Seeking a Full-Stack Engineer Intern to transform research prototypes into production-ready systems. The role involves working with browser automation, agent infrastructure, and UX design to create understandable and controllable agent behavior. Responsibilities include developing full-stack browser extension interfaces using React/Next.js, TypeScript, Python, and SQL, and designing intuitive user delegation for AI actions. Experience with web apps, browser extensions, and familiarity with design systems like Figma are required. Preferred qualifications include a history of high-achieving projects, open-source contributions, or a strong UI/UX portfolio.
# **Full-Stack Engineer Intern**
We're looking for engineers who can turn research prototypes into production-ready systems. You'll work at the intersection of browser automation, agent infrastructure, and intuitive UX that make complex agent behavior understandable and controllable.
Preferred: History of high-achieving projects/work experience, open source contributions, or competitive math/cs/physics experience.
## **What You'll Do**
* Full-stack browser extension interfaces based on research prototypes.
* End-to-end features using React/Next.js, Python, and SQL.
* Design intuitive interfaces for how users should delegate and override AI actions.
* iMessage, communications channels, desktop-native, wearables integrations
## **Requirements**
* Strong foundation in React/Next.js and TypeScript.
* Experience building and shipping complex web apps and/or browser extensions.
* Familiarity with design systems like Figma
* Preferred: Proof of meaningful open-source contribution.
* Preferred: Strong UI/UX or design portfolio.
## **Sample Projects**
* Reusable tool call and output components for LLM-generated responses.
* Building efficient indexing, search, and memory layer architecture.
* Developing security and guardrails to approve and deny agent requests.
* Integrating third-party platforms (e.g. Slack, Notion, Gmail) to enable workflows.
We're looking for engineers who can turn research prototypes into production-ready systems. You'll work at the intersection of browser automation, agent infrastructure, and intuitive UX that make complex agent behavior understandable and controllable.
Preferred: History of high-achieving projects/work experience, open source contributions, or competitive math/cs/physics experience.
## **What You'll Do**
* Full-stack browser extension interfaces based on research prototypes.
* End-to-end features using React/Next.js, Python, and SQL.
* Design intuitive interfaces for how users should delegate and override AI actions.
* iMessage, communications channels, desktop-native, wearables integrations
## **Requirements**
* Strong foundation in React/Next.js and TypeScript.
* Experience building and shipping complex web apps and/or browser extensions.
* Familiarity with design systems like Figma
* Preferred: Proof of meaningful open-source contribution.
* Preferred: Strong UI/UX or design portfolio.
## **Sample Projects**
* Reusable tool call and output components for LLM-generated responses.
* Building efficient indexing, search, and memory layer architecture.
* Developing security and guardrails to approve and deny agent requests.
* Integrating third-party platforms (e.g. Slack, Notion, Gmail) to enable workflows.