Role overview

Backend Engineer, API

Requirements and responsibilities

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Here Is What You'll Do

  • Define what a mortgage is in code. Seriously. You'll work on semantic models that don't just represent mortgages as they exist today — they expand what a mortgage can be. This is product design at the API layer.
  • Build toward an event-driven API. We're moving to a world where our API doesn't just respond to requests — it tells you what happened, why, and what you can do next. You'll help design and ship that future.
  • Make the complex feel simple. Our API should make the mortgage process impossible to get wrong. That means thoughtful abstractions, clear documentation, and an obsessive focus on developer experience.
  • Design for nonlinearity. Mortgage flows aren't linear wizards. Our future API encodes choice, branching, and path-dependence natively. You'll work on guided experiences that model real-world complexity without exposing it as chaos.
  • Treat this as a product surface. You'll think about breaking changes, versioning, onboarding, and the full lifecycle of an API that real companies depend on.

Tech Stack

  • TypeScript
  • GraphQL (this is the product)
  • NestJS
  • SQL (PostgreSQL)
  • Temporal.io (workflow orchestration)
  • Event-driven architecture
  • AI-driven development tooling and agentic infrastructure

Who Will Succeed Here

  • Is deeply curious
  • Wants to own features from design to development to deployment to maintenance
  • Is willing to put the work in to solve the hardest of problems
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Browse stack
FocusEngineeringRole area
Seniority signalOpen levelCandidate level
StackGraphQL, PostgreSQL, SQLPrimary skills
Location1 accepted countryEligibility

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