Álvaro Pérez Fajardo

Computer Science and Engineering student and paid freelance full stack developer with 1.5 years of experience shipping production web applications for real clients. My work includes public websites and confidential client systems whose source code remains private when required. Strongest in backend logic, APIs, PostgreSQL and Supabase data design, automation, testing and deployment.

Built a POS and inventory platform used by 15+ employees across 200+ products and 200-250 monthly sales. I use AI tools to speed up research and implementation while taking responsibility for architecture, code review, testing and verification.

Full Stack Developer at Freelance (2025-01 – Present)

• Modernized a client's sales and inventory workflow with a production platform used by 15+ employees across 200+ products and 200-250 monthly sales. Replaced handwritten notes and Excel databases, reduced manual errors and made daily operations easier to improve and maintain.
• Designed relational models and sales, inventory, customer, returns, credit-note and reporting workflows with Next.js, TypeScript, PostgreSQL and Supabase, including authentication, authorization and row-level security.
• Built Playwright end-to-end coverage for cross-module workflows and edge cases; integrated Stripe, PayPal, webhooks and transactional email for a client e-commerce platform deployed to Vercel.
• Built and deployed Grupo IHI's public website with Next.js 16, React 19 and TypeScript, including a responsive portfolio, optimized media, quote and contact flows, SEO metadata and Vercel delivery.

Computer Science and Engineering in Computer Science and Engineering – Universidad Panamericana (2030-06)