// Aldahir Sánchez

Full-Stack Developer & Systems Engineer

> Real clients. Production-ready.

$ hire_me --platform=upwork $ send_email --to=contacto@aldahir.dev

// recent work

projects.ts

TabTap.ts

TabTap

Restaurants receive real-time orders via QR code scan. No app install required for guests.

Node.js Socket.IO PostgreSQL

HRPortal.ts

HR Document Portal

New hires upload onboarding docs directly to organized Drive folders. Zero IT coordination needed.

Node.js Google Drive API SQLite

Enrollment.ts

After-School Enrollment Platform

Replaced a broken spreadsheet workflow for 97 workshops with live seat availability and conflict detection.

Node.js PostgreSQL Playwright

QRAttendance.ts

QR Event Attendance System

3-campus QR check-in with web dashboard and native Android APK sharing a single database.

Node.js Flutter PostgreSQL

EventRSVP.py

Event RSVP & Self-Seating App

200+ guests self-organized seating in real time. Zero page reloads, no staff coordination required.

Python Flask Google Sheets API

// tools of the trade

stack.json

const stack = {
  languages: [
    "JavaScript", "TypeScript",
    "Python", "PowerShell",
    "SQL", "Dart"
  ],
  backend: [
    "Node.js", "Express",
    "Flask", "Socket.IO"
  ],
  frontend: [
    "Vanilla JS", "Flutter",
    "EJS", "HTML / CSS"
  ],
  databases: [
    "PostgreSQL", "SQLite"
  ],
  integrations: [
    "Google Drive API",
    "Google Sheets API"
  ],
  tools: [
    "Playwright", "Git",
    "Docker", "Nginx", "PM2"
  ]
};

// reach out

contact.sh

$ hire_me --platform=upwork

upwork.com/freelancers/aldahir

$ send_email --to=contacto@aldahir.dev

contacto@aldahir.dev