Full-Stack Engineer, Internal Tools

Denver, COContractonsite$176K – $219K / yrPosted 2026-07-09

As a full-stack engineer here you'll move across the whole stack, one week deep in a Postgres schema, the next wiring up a React form. We're a small-ish team so generalists who can ship features independently thrive here. You should be comfortable owning a feature from database to deployed UI without waiting on someone else to hand you the next piece.

What you'll do

  • Ship features spanning React frontends and Node.js or Python backends
  • Design database schemas and write efficient queries against PostgreSQL
  • Build and maintain internal APIs consumed by web and mobile clients
  • Write automated tests covering both frontend and backend logic
  • Deploy changes through CI/CD pipelines and monitor post-release health
  • Work directly with product and design on scoping new features

What we're looking for

  • 4+ years shipping full-stack features in a production environment
  • Proficiency in JavaScript/TypeScript and at least one backend language
  • Experience with relational databases and basic schema design
  • Comfortable owning a feature from spec to production deploy
  • Familiarity with cloud infrastructure such as AWS or GCP
  • Pragmatic communicator who can flag scope creep early

Nice to have

  • Experience with serverless architectures
  • Exposure to mobile development (React Native or similar)
  • Startup experience with rapidly changing requirements

About Mintbook

About Mintbook: Mintbook builds accounting and invoicing software designed for small business owners first, with support from a team that includes former bookkeepers. Headquartered in New York with a support office in Phoenix, we're focused on making small business finances less confusing, one reconciliation at a time.

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