Principal Engineer (TypeScript)

United States Digital Space LLC; New York (NY); Hybrid; USD 180,000 - 240,000; Full time

Job summary

United States Digital Space LLC in New York is seeking a Principal Engineer with a backend-heavy focus on TypeScript to own architecture across multiple teams. You will drive technical direction as the company scales and mentor senior engineers, collaborating closely with product and business leadership on strategy.

Ideal candidates bring 15+ years of hands-on experience with TypeScript backend systems (Node.js, NestJS or similar) and some exposure to regulated-data environments such as

Qualifications

• 15+ years of hands-on software engineering experience, backend-heavy.
• Strong expertise in TypeScript backend development (Node.js, NestJS or similar).
• Exposure to healthcare or fintech data environments a plus, not required.

Responsibilities

• Own architecture across multiple teams.
• Set technical direction as the company scales.
• Mentor senior engineers and influence technical decisions.
• Collaborate with product and business leadership on strategy.

Skills

TypeScript

Node.js

NestJS

GraphQL

PostgreSQL

AWS

React/Next

Job description

the company | Principal Engineer (TypeScript) | NYC (Hybrid) | Full-time

the company is a Series B healthtech company in NYC fixing a real, inexpensive problem: US health plans lose billions every year to improper payments and administrative waste in claims processing. We combine clinicians with AI to catch billing errors before they get paid out. Just raised $55M in our Series B led by Transformational Capital.

We're hiring a Principal Engineer, backend-heavy role (85-90% backend), to own architecture across multiple teams and help set technical direction as we scale.

Stack: TypeScript, Node.js, GraphQL, PostgreSQL, AWS, React/Next on the frontend.

You'd be:

• Owning delivery on systems spanning multiple teams
• Driving adoption of AI coding tools (we use Claude Code) with real usage across the team, not just experimentation
• Mentoring senior engineers, influencing technical decisions without needing to go the management track
• Working closely with product and business leadership on technical strategy

Looking for 15+ years of experience, real hands-on TypeScript backend depth (Node.js, NestJS, or similar), and ideally some exposure to healthcare, fintech, or another regulated-data environment, though that's a plus, not a hard requirement.

Hybrid, 4 days/week in our SoHo office.