I've spent 4+ years building the unglamorous production side of real SaaS products — hotel booking platforms, multi-vendor marketplaces, property management systems. The systems where bookings, vendors, inventory, and payments all move at once and the database has to keep up.
I work directly with founders, not through account managers or project coordinators. When something breaks, you talk to the person who built it.
I work as an external technical partner — not a full-time hire, not a contractor who disappears after launch.