Aaron Quintana

I’m a Full-Stack Developer who builds end-to-end products with an emphasis on reliability, compliance, and clean architecture. Most recently, I led a PCI compliance initiative at MyRenegade, replacing direct PAN/CVV submission with Zypto tokenized card selection across the payment pipeline.

I thrive across the stack: I built a marketing deep links system end-to-end (Vue 3 routing, NestJS admin CRUD, and analytics tracking), and I created an AWS S3-based receipt upload module for Red MCC transactions with appeal workflows and GDPR-compliant admin review. I also refactored legacy backends into modular NestJS services, migrated styling to SCSS, and maintained CI/CD on Cloudflare using structured peer-review workflows with Conventional Commits and the 4-Eyes process.

Earlier roles strengthened my backend fundamentals and scalability focus: I designed a microservices backend for high-concurrency data streams, and I delivered an automated rental platform with NestJS and GraphQL, including JWT authentication and role-based access control. I also build real-world projects like an AI Sales & Lead Qualifier Agent using Twilio voice calls and ElevenLabs, and I’m currently developing a PCPartPicker-style comparison tool powered by scraping, HTML cleaning, and structured extraction with Gemini Flash and Claude.