We're creating the third layer of interaction — a personalized AI action layer that lives across all your workflows. If that excites you, and you’re a world-class infrastructure expert, please apply.

Why Dex Matters

Flow is everything. Every tab switch, every UI reload, every wait for an AI handoff kills momentum.
The future of productivity is collaborative AI. Dex is an active, real-time partner embedded directly in your browser—the place where your work actually lives.
Context makes or breaks a product. You need systems that understand where you are, what you're doing, and what should happen next.

What You'll Build

Core agent components, including memory stores, context compression, inter-agent protocols, planning and tool use.
High performance state management and real-time UI observation systems.
Scalable infrastructure for browser-native AI.

Requirements

Expert in React/Next.js, TypeScript, and Python.
Deep browser internals experience.
Proven rapid prototype to production track record.
Preferred: Prior experience with AI/ML infra or agentic systems.

Sample Projects

Translating browser inputs (voice, keyboard and mouse inputs, tab changes, DOM) into actionable workflow graphs.
Agentic systems that predict and execute users’ next steps in complex workflows.
A searchable, self-updating memory store for personalized user flow paths.

Dex is a personal CRM that reminds you to keep in touch with the people you would otherwise forget.

Dex helps turn your acquaintances into your allies. Going beyond the superficiality of social networks requires commitment. If you remember to keep in touch thoughtfully, you can turn the interesting person you met at a networking event into a friend that has your back.

I built Dex after failing to keep up with the tools I tried (Airtable, Notion, etc) for relationship management. Installing an actual CRM like Hubspot felt like a wrong fit for my informal relationships -- these people were 'my team,' not customers.

Dex is a lightweight personal CRM that’s easy to stick with. Key to Dex is a Chrome extension that enables you to manage relationships while you’re in Facebook, Messenger, Twitter, and the social apps you already use. Dex can also send you actionable reminders (daily, or based on your calendar events) to log your interactions for next time. By using Dex, you can:

Build stronger relationships, by sending you a nudge to follow-up.
Be more thoughtful, by helping you remember where you left off.
Become a superconnector, by making connections you wouldn’t otherwise remember.

Founding Engineer

About the role

Why Dex Matters

What You'll Build

Requirements

Sample Projects

About Dex

Required skills

Other roles at Dex

Job details

Company

Funding

Founders

What happens next.

Confirm the fit

I pitch you to the company

A meeting lands on your calendar