Jobs · Engineering · Arizona

Full Stack Developer

Mastermind.com · Scottsdale, AZ · 1 mo ago
On-siteEngineering$105k–$120k/yrFull-time

About the role

Hands-on, mid-level full stack seat (4 to 6 years), not a lead role. Roughly 70% backend and systems, 30% front-end. You own your work end to end on a lean senior team that ships in two-week sprints.

Responsibilities

  • Build a unified admin panel that lets a non-technical customer team fix accounts end to end in one click
  • Own the plumbing that carries the whole company from point of sale into Circle
  • Maintain, extend, and improve the affiliate system that drives growth
  • Ship the Customer Service Admin Suite (primary)
  • Ship the Member Experience (ongoing)
  • Ship the Affiliate System (ongoing)

Requirements

  • 4 to 6 years building production full stack applications inside a professional engineering team with code review
  • Front-end: Next.js, React, TypeScript, Tailwind, iframes
  • Backend: Node, Express, MySQL, Redis
  • Cloud and hosting: Heroku and GCP
  • Collaborative problem solving: you think fast with the team and pressure-test the plan before building, no rogue players
  • Real AI fluency: you use AI as a craftsman's tool and make sure what it produces actually works

Qualifications

  • US citizens and green card holders only. No visa sponsorship.
  • Strong differentiators: AI coding tools used well (Claude Code, Cursor), with the judgment to verify and own the output; n8n or workflow automation experience
  • Based in Scottsdale or Greater Phoenix (on-site preferred)
  • 1 to 2 prior roles of roughly two years each, ownership. No job hopping

Skills

  • The core skill: Change Resilience

Benefits

Eligibility: This role requires US work authorization without sponsorship, now or in the future (US citizens and green card holders).

Pay

$105,000 - $120,000 depending on experience, plus benefits.

Schedule

Full-time, W2.

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