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

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. J-18808-Ljbffr