Full Stack / AI Founding Engineer

United States Digital Space LLC; San Francisco (CA); Hybrid; USD 120,000 - 140,000; Full time

Benefits offered by this job

Equity

Flexible compensation

Benefits

Job summary

United States Digital Space LLC is seeking a Full Stack / AI Founding Engineer in the San Francisco Bay Area. This role involves developing an AI-powered training platform for high-stakes conversations, working closely with the CTO, and creating front-end UIs and APIs.

Ideal candidates are proficient in TypeScript, React, Node.js, SQL, and eager to grow into a leadership position as the company scales. The position offers a salary range of $120-140k plus equity and benefits.

Qualifications

• Experience in shipping full-stack applications independently or as part of a team.
• Proficiency in TypeScript, React, Node.js, and SQL.
• Familiarity with Git, monorepos, and CI/CD practices.

Responsibilities

• Build an AI-powered, scenario-based training platform.
• Collaborate with CTO on product and technical direction.
• Work on front-end UIs, APIs, and databases.

Skills

TypeScript

React

Node.js

SQL

API design

System architecture

Git

Monorepos

CI/CD

E2E testing

Job description

the company | Full Stack / AI Founding Engineer | SF Bay Area | $120-140k + 1-1.5% equity + benefits (flexible on comp)

the company is building an AI-powered, scenario-based training platform where trainees practice high-stakes conversations like sales calls, negotiations, leadership moments, and cross-cultural exchanges against conversational AI roleplayers capable of realistic speech and real-time interaction. We're dual-use, serving both U.S. government and private-sector customers. As a founding engineer, you'll touch the whole stack: front-end UIs, APIs, database schemas, system architecture, working in daily with our CTO to shape product and technical direction with the opportunity to grow into a leadership role as we scale.

We're looking for someone who's shipped full-stack apps independently or on a team, is proficient in TypeScript, React, Node.js, and SQL, and thinks naturally in terms of API design and system architecture. You should be comfortable with Git, monorepos, and CI/CD (GitHub Actions). Bonus if you're familiar with T3 Stack, OpenTelemetry, and E2E testing. We ship daily and lean hard on coding agents like Claude Code to move fast, so experience developing alongside them is a big plus.

We are in the process of raising our seed round and looking to hire within the next month. We are looking for someone remotely in the Bay Area, but are open to those who live outside of the region. We do not sponsor visas now or in the future.

If you are interested, please reach out to [e-mail] with your resume and linkedin profile.

Full Job Req: https://docs.google.com/document/d/1UEIhC5y-iEnlSPab4s88OoA7qlishCyq4rjOIljj3ys/edit?tab=t.0