GIANDEV.fun
Where bugs ask for permission

About me

Gianmarco Zapata

Full Stack Software Engineer & Cloud Architect · Piura, Peru

I design and build web applications, backend APIs, and relational data systems. My core stack spans Go, TypeScript, JavaScript, React, Node.js, and PostgreSQL, alongside service integration and legacy platform modernization.

I focus on building clear, reliable operational tools, understanding how teams use them day to day, and making sound architectural trade-offs that stand the test of production.

Core technologies & tools

  • Go
  • TypeScript
  • JavaScript
  • React
  • Next.js
  • Node.js
  • NestJS
  • PostgreSQL
  • WebSockets
  • Docker

Professional career timeline

  1. GECHISA

    Technical Systems Auditor

    Aug 2026 – Sep 2026

    Piura, Peru

    Legacy software audit and architectural modernization roadmap toward decoupled REST APIs and PostgreSQL.

  2. Divas Sullana

    Full Stack Developer

    Jun 2026 – Jul 2026

    Sullana, Peru

    End-to-end development of a multi-warehouse inventory, product variants, and point-of-sale web application.

  3. HabitaHub Pro · Real Estate SaaS

    Full Stack Developer

    Dec 2025 – Apr 2026

    Piura, Peru

    Property lease management platform built with React, Go, and PostgreSQL to manage units, digital contracts, and recurring billing.

  4. Quantitative Trading Bot

    Backend Developer

    Jun 2025 – Dec 2025

    Remote

    Algorithmic trading bot in Python featuring persistent WebSockets, concurrency, and atomic order execution.

  5. SAT Piura · Tax Administration Service

    IT Support & Infrastructure Specialist

    Jul 2022 – Jan 2023

    Piura, Peru

    High-priority technical support, user training, and administration of institutional Linux/Windows servers and corporate networks.

  6. Offsec-Chile · AgroCamacho & E-commerce

    Backend Full Stack Developer

    2020 – 2025

    Remote

    Legacy platform modernization into NestJS and Go microservices, PostgreSQL query optimization (+90% speed), and CI/CD pipelines.