JALIL

plan · 04

Skills

Technologies and practices I use to build production software. Every item is backed by code in my recent activity.

01

What I work with daily

  • TypeScript / Node.js (Express, Prisma)
  • MySQL / MariaDB (queries, migrations, indexes)
  • Python 3 (FastAPI, async SQLAlchemy, Pandas, uv)
  • SQL — analytical and transactional
  • Next.js 15 (App Router, React 19, Server Actions)

02

Data

  • Google BigQuery (parameterized queries, jobs)
  • Cloud Run, Cloud SQL, Cloud Scheduler, Cloud Build
  • Idempotent batch pipelines
  • Operational data modeling (229 models in Prisma)
  • Docker

03

Integrations I've worked with

  • REST · Webhooks
  • Electronic invoicing (AFIP / Presea)
  • MercadoPago (QR / Smart POS / Point)
  • SiTef / CliSiTef terminals
  • Notion API · Google Sheets API · FTP
  • SOAP / XML (xml2js)
  • Magento API · Mercado Libre API
  • WhatsApp Business API

04

Testing and practice

  • Vitest, Node test runner, Supertest, Playwright (E2E)
  • Versioned SQL migrations with rollback scripts
  • ESLint, Prettier
  • ADRs and implementation plans before coding

05

Languages

  • Spanish — native
  • Technical English (docs reading, B1)