Zaid

Software Engineer — Backend, Full-stack & AI applications. Technical lead at Refacciones.com and co-founder & CTO at Salto Angel.

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About

Alberth Zaid Pantoja

Technical lead at Refacciones.com, building production software for business operations. Built wallet services, AI-assisted invoice workflows, and natural-language configuration tools. Experience spans application development, database design, and cloud deployment.

Based in
Bogotá, Colombia
Education
Jala University — Software Engineering
Languages
Spanish (native) · English (B2)

Experience

Where I've built

01 / 06

  1. Salto Angel

    Co-founder & CTO

    • AI services & products company built in Latin America: Quiubot, Falco, Tequendama, and more in development.
    • AI agents
    • LLMs
    • Python
    • FastAPI

  2. Refacciones.com

    Technical Lead & Principal Developer

    Jun 2025 – Present

    • Lead the design and implementation of production services that automate business processes, using Go, NestJS, Next.js, and PostgreSQL.
    • Design microservices and database models for concurrent business workflows; implement backend services and frontend applications.
    • Integrate OpenAI agents into operational workflows and deploy services on AWS (EC2, S3, Transfer Family) and Railway.
    • Containerize services with Docker and manage CI/CD across development, testing, and production environments.
    • Go
    • NestJS
    • Next.js
    • PostgreSQL
    • OpenAI
    • AWS
    • Railway
    • Docker
    • CI/CD

  3. Nuvara.com.co

    Semi-Senior Software Engineer

    May 2026 – Sep 2026

    • Built digital currency transaction and wallet management services in Go and NestJS, enabling users to purchase services within the platform.
    • Built a browser extension that downloaded invoices and submitted them to an AI-powered invoice processing system.
    • Developed an LLM-based multi-agent system that let users manage platform settings through natural language.
    • Go
    • NestJS
    • LLM agents

  4. Kruger Corps / Tecnopac

    Semi-Senior Software Engineer

    Feb 2025 – Aug 2025

    • Developed personnel, institution, document, and legal-process workflows for Ecuador's Attorney General's Office with Java / Spring Boot, NestJS, and Next.js.
    • Implemented application identity management with Oracle Cloud Infrastructure IAM and worked with Oracle Database.
    • Java
    • Spring Boot
    • NestJS
    • Next.js
    • OCI IAM
    • Oracle Database

  5. Propiedades Murillo

    Freelance Full-Stack Developer

    Sep 2024 – Jan 2025

    • Built the frontend, backend, and database for a real estate price prediction application with React, Node.js, and MongoDB; exposed the ML model through a FastAPI HTTP endpoint.
    • React
    • Node.js
    • MongoDB
    • FastAPI

  6. Earlier

    • ZantiaApr 2024 – Jul 2024Full-Stack Developer
    • KodlandJun 2023 – Dec 2024Programming Tutor
    • FreelanceOct 2023 – Nov 2023Data Developer
    • Green Weed SolutionsJan 2023 – May 2023Developer & Designer
    • Casa ClickNov 2022 – Jan 2023Visual Basic Developer

Building now

Current work

Products I am building at Salto Angel and Refacciones.com, plus recent client work.

Stack

Core technologies

Languages & frameworks

  • Go
  • TypeScript
  • JavaScript
  • Python
  • Java
  • NestJS
  • Node.js
  • Next.js
  • React
  • Spring Boot
  • FastAPI

Data, cloud & AI

  • PostgreSQL
  • MongoDB
  • Oracle Database
  • AWS
  • Railway
  • Docker
  • CI/CD
  • OpenAI APIs
  • pandas
  • NumPy
  • scikit-learn

Certifications

Learning

  1. 01Certification in Data Science & IANuclio Digital School
  2. 02Hackathon Azure & OpenAiCodigo Facilito
  3. 033D Bionic ExoskeletonsP4H Bionics
  4. 04Chatbots con IABig data academy
  5. 05UN Datathon 2024UN Datathon

Contact

Let's talk

Building something with AI, backend services, or a full-stack product? Send me your idea.

alberthzaid2003@gmail.com