FinTech Startups
Full-Stack Developer for FinTech Startups
Financial products need bulletproof data integrity from day one
FinTech products demand more than a typical SaaS — transactional integrity, audit trails, real-time balance updates, and payment rails that don't lose money. I build those foundations in from the first commit.
The Problem
Most developers can build a CRUD app. Very few understand idempotency, double-entry accounting patterns, webhook failure recovery, and the data model decisions that become impossible to reverse after launch.
The Build
I've implemented Stripe payment flows, Supabase Row-Level Security for financial data isolation, and real-time balance sync. Production SaaS shipped in 6 weeks with audit-ready data handling.
- Production SaaS shipped in 6 weeks
- Multi-tenant architecture with Row-Level Security
- Stripe webhooks with idempotency key handling
- Audit-trail tables with immutable transaction records
Stack
Next.jsSupabaseStripeTypeScriptReactPostgreSQL