Mid-Level Full Stack Engineer – Node/Express + Next.js/React

Mastermind.com; Scottsdale (AZ); On-site; USD 100,000 - 150,000; Full time

Job summary

Mastermind.com in Scottsdale is seeking a hands-on Full Stack Developer (4–6 years) to join a lean, senior engineering team. This mid-level seat is roughly 70% backend and 30% frontend, with ownership end-to-end and two-week sprints on a modern stack.

You will build tooling for the education platform: the customer service admin suite, the Circle member experience, and the affiliate system, focusing on reliable, scalable code in Next.js, React, TypeScript, Tailwind, Node.js, Express, and MySQL.

Qualifications

• 4 to 6 years building production full stack applications.
• Front-end: Next.js, React, TypeScript, Tailwind.
• Cloud and hosting: Heroku and GCP.
• US citizens and green card holders only.

Responsibilities

• Own the Customer Service Admin Suite end to end and ship high-impact features.
• Develop and maintain the Circle member experience and related integrations.
• Maintain, extend, and improve the affiliate system.
• Ship features every sprint with peer review and clean code.

Skills

Next.js

React

TypeScript

Tailwind

iframes

Tools

Node.js

Express

MySQL

Job description

Mastermind.com in Scottsdale is seeking a hands-on Full Stack Developer (4–6 years) to join a lean, senior engineering team. This mid-level seat is roughly 70% backend and 30% frontend, with ownership end-to-end and two-week sprints on a modern stack.

You will build tooling for the education platform: the customer service admin suite, the Circle member experience, and the affiliate system, focusing on reliable, scalable code in Next.js, React, TypeScript, Tailwind, Node.js, Express, and MySQL.