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Alejandro
Pérez Dávila

Full-stack developer · DevSecOps

I build and secure systems other people use every day. Three are in production right now: an importer bills with one, a psychologist books patients through another, the third teaches digital safety.

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Portrait of Alejandro Pérez Dávila

Medellín · Colombia

systems in production
3 systems in production
years with real clients
2+ years with real clients
green tests across projects
140 green tests across projects
national research project I lead
1 national research project I lead

// Projects

Four systems, four decisions

Each one with the problem it solved and the technical decision that solved it. What you see is in production or is code I wrote.

ImportCol — Logistics, inventory and cost-proration for a Colombian importer.
In production 2026

ImportCol

Logistics, inventory and cost-proration for a Colombian importer.

  • FastAPI
  • PostgreSQL
  • SQLAlchemy
  • React 19
  • TypeScript
  • Tailwind
Read the case
AuditX — Agentless server auditing and monitoring over SSH — native Android, web dashboard and public API.
Case study 2026

AuditX

Agentless server auditing and monitoring over SSH — native Android, web dashboard and public API.

  • Kotlin
  • Android
  • Node.js
  • Express
  • SSH2
  • Next.js 15
Read the case
E-DIGNA — Digital education for analytical browsing — national research + 5 interactive tools.
In production 2026

E-DIGNA

Digital education for analytical browsing — national research + 5 interactive tools.

  • Astro 5
  • Tailwind 4
  • TypeScript
  • i18n es/en
Read the case
PsicoArteMente — Landing page for a child and adolescent psychologist — no forms, no stored data, no JavaScript.
In production 2026

PsicoArteMente

Landing page for a child and adolescent psychologist — no forms, no stored data, no JavaScript.

  • Astro 5
  • Tailwind 4
  • TypeScript
  • Vitest
Read the case

// Track record

Two years shipping to real clients

I started building systems for a psychology practice and never stopped.

  1. 2026–present

    Full-stack developer

    ImportCol (real client)

    • Inventory, logistics and cost-proration platform in production, in daily use.
    • Deterministic proration engine (Decimal, frozen per-batch denominator) with parity verified against the reference Excel.
    • 469 products, 86 sales and 3 import batches in production · 117 green tests · 7 phases shipped.

  2. 2024–2026

    Systems developer

    GS Camelot 174 (Scout group)

    • Systems for personnel management and traceability.
    • Solved information fragmentation and dispersion by centralizing it.
    • Optimized tracking and progress of individual processes.

  3. 2022–present

    Developer & brand administration

    PsicoArteMente (psychology clinic)

    • Patient management systems and processes.
    • Clinic website.
    • Brand administration and digital presence.

// Research

E-DIGNA

2023–present

Lead of a national-level research project on the use, trends and spread of online practices, cultures and threats. Featured in REDCOLSI and the Lasallian Norandina Research Network. Article to be published in 2026.

// Education

Academic high school (grades 1–11)

Instituto San Carlos de La Salle · 2026

Software Development Technologist

UPB — Universidad Pontificia Bolivariana · 2025–2026

Spanish · NativeEnglish · C1 (certified)

// Contact

Let's talk

I'm looking for a team where what I build actually gets used. If that's you, reach out however suits you.