A complete investor-discovery SaaS built solo: Express/PostgreSQL/Stripe API with tier-based paywall, React storefront iterated across 286 commits, a six-step waitlist funnel, and a white-labeled support desk - wrapped around a 25,000+ investor dataset.
A full-stack livestock farm-management SaaS maintained over two years: Express/MongoDB API with 13 per-species models, subscription billing, sandbox API keys and audit logging; a Redux-powered React dashboard; and design-first wireframes - run with a small team and CI.
A two-generation fleet-management API (2020–2021): GPS trip tracking and vehicle records in v1, re-platformed in v2 as a multi-tenant SaaS with companies, plans, API keys, sandbox mode, and guarantors - built by a two-person team, and the origin of a backend boilerplate reused for years.