Founding Engineer: Browser Automation & On-Device Runtime

Dex; San Francisco (CA); On-site; USD 160,000 - 210,000; Full time

Job summary

Dex is seeking a founding engineer in San Francisco to build the core browser automation engine, on-device runtime, and encrypted infrastructure for enterprise identity workflows. You will work closely with customers to tailor secure automations and ship features rapidly.

You will directly engage with enterprise security teams, design robust distributed systems, and own significant portions of the platform from development to production, in a hands-on, fast-paced environment.

Qualifications

• At least 1 year of professional experience shipping production software that real users depend on.
• Strong systems debugging skills and comfort with browser environments and automation tooling.
• Based in or willing to work in-person most days from the San Francisco office.
• Existing US work authorization; visa sponsorship is not available for this role.

Responsibilities

• Build and optimize a core browser automation engine and on-device runtime designed to execute reliable tasks inside complex third-party web apps.
• Architect and maintain distributed, end-to-end encrypted task systems that run locally across diverse end-user operating systems and browser environments.
• Engage directly with customer security teams to diagnose workflow failures, validate fixes live, and turn customer friction into platform capabilities.
• Develop platform infrastructure, enterprise controls, and no-code workflow builders that let non-technical admins configure secure automations.
• Set architecture patterns and operational standards in an emerging domain where no established browser agent playbooks exist yet.

Skills

Production software

Customer interaction

Systems debugging

Browser automation

Distributed systems

In-person SF readiness

Tools

Playwright

Puppeteer

Selenium

Electron

Job description

Dex is seeking a founding engineer in San Francisco to build the core browser automation engine, on-device runtime, and encrypted infrastructure for enterprise identity workflows. You will work closely with customers to tailor secure automations and ship features rapidly.

You will directly engage with enterprise security teams, design robust distributed systems, and own significant portions of the platform from development to production, in a hands-on, fast-paced environment.