What is a Virtual CTO for a MERN product?

A Virtual CTO engagement provides ongoing part-time technical leadership for MERN products. Scope includes: architecture decisions on new MERN features, tool and vendor selection, sprint backlog technical review, MERN hiring support (screening, interview design), code review of major releases, and emergency response coordination. Typically 10 to 20 hours per month on a monthly retainer from $4,000/month.