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LinkedIndavid@raydar.xyz

Full-Stack Software Engineer

Fast-growing software company

  • LocationSan Francisco, California
  • TypeFull-time
  • Posted30 September 2026

The role, as published

About the company

Our client is a fast-growing software company.

The role

Raydar is recruiting for this role on behalf of our client. Design and run backend-heavy services for a software platform while also delivering the front-end features that make them usable. Partner closely with company leadership and external users, holding wide ownership of technical and product choices from the outset.

What you'll do

  • Build and maintain backend services that support a data-driven software platform.
  • Design data models for datasets, test runs, traces, versioned content and user-defined quality criteria.
  • Own connections to third-party systems across their lifecycle, from authentication and webhooks to syncing, error handling, monitoring and production support.
  • Carry features from initial design through release and ongoing iteration based on feedback.
  • Work hands-on with customers to understand their environments, diagnose problems and turn bespoke requests into reusable capabilities.

What we're looking for

  • 2 to 4 years of professional experience shipping and operating live software, with some of it in a fast-moving startup setting.
  • Strong backend skills in TypeScript and Node.js, plus the ability to deliver across the full stack.
  • Solid PostgreSQL knowledge and practical exposure to asynchronous processing or task orchestration.
  • A self-directed approach and a history of seeing projects through from idea to launch on your own.
  • An appreciation of why validating non-deterministic AI behavior calls for different methods than traditional unit tests.
  • Comfortable working on-site in San Francisco.

Bonus points

  • Early or founding engineering experience at a young company.
  • Background building integration-heavy or API-driven products for business customers.
  • Familiarity with enterprise AI, observability or distributed systems.
  • Exposure to a fast-growing AI company.

Location and work model

  • San Francisco, United States
  • On-site, in person
  • Full-time

Compensation, as the posting describes it

  • Equity

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Applying here sends your application to Raydar. If you also find this role on the company's own careers page, talk to us before you apply there. A direct application can mean we cannot represent you for that role.