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Résumé ↓ENES

Full-stack developer & IT lead

About

I run the IT department of a recycled-plastics plant as sole owner of its cost centre, and I write the software that department runs on. The KPIs I report every month come out of systems I built.

05

systems in production

36

people who depend on them

Facts

  • Sole IT lead for 36 people and 66 computing assets
  • Reports straight to the General Director
  • Runs IT for a recycled-plastics plant in Huimilpan
  • Computer engineering, UAEM, thesis pending
  • Google Cybersecurity certificate in progress
  • Board games, chess and video games, in that order of table space
  • Pizza, coffee and music, in no particular order

Numbers, not awards

  • 5

    production codebases, sole author

  • 1,050

    automated tests across projects

  • 93%

    response within SLA, target 85%

  • 100%

    availability across six services

  • -28%

    IT spend in three months

  • 20+

    devices managed in Intune

  • 27

    clauses negotiated into the SAP contract

  • 1

    impersonation attack stopped

Capabilities

Full-stack

  • Next.js 15/16
  • React 19
  • TypeScript strict
  • Tailwind v4
  • PWA

Data

  • PostgreSQL
  • RLS & SECURITY DEFINER
  • pg_cron
  • Supabase
  • Drizzle

Platform

  • Microsoft 365
  • Entra ID
  • Intune
  • Microsoft Graph
  • Hyper-V
  • UniFi

Security

  • Incident response
  • OAuth 2.0
  • AES-256-GCM
  • Strict CSP
  • Threat modelling

Governance

  • SAP Business One lead
  • ISO 9001
  • Budgets & vendors
  • SLA & KPIs

How I build

  1. P1

    Diagnose in writing

    Before touching anything, the gap goes on paper. My own ISO 9001 diagnostic named my department's worst finding.

  2. P2

    Rules in the database

    Business rules live in PostgreSQL. The client gets no write privilege it does not need.

  3. P3

    Tests in CI

    SQL assertions against a disposable database, Vitest on the app, five-stage pipeline before anything ships.

  4. P4

    Ship to real users

    Internal tools go live for the people who asked for them, on the shop floor, the same week.

  5. P5

    Report the KPIs

    The numbers I report come out of the systems I wrote, including the unflattering ones.

  6. P6

    Iterate

    Overrides from the panel, not from a redeploy. The system changes with the operation.

Experience

  1. PIMSA

    IT Manager · Internal systems engineering

    Huimilpan, Querétaro

    Jun 2026 – Present

  2. Construcciones SB

    Systems Administrator

    Querétaro

    Dec 2025 – May 2026

  3. Foton Querétaro

    IT Specialist

    Querétaro

    Jul 2025 – Dec 2025

  4. Centro de Abastos Fany

    Information Systems Supervisor

    Atlacomulco

    Jan 2024 – Jul 2025

  5. Mercado Libre

    Logistics Specialist

    Remote

    Dec 2019 – May 2023

Education & certifications

  • BEng Computer Engineering, Universidad Autónoma del Estado de México, thesis pending
  • Google Cybersecurity Certificate, in progress
  • Google IT Support, in progress
  • Git & GitHub and Object-Oriented Programming, Platzi