Foto de Abisai Herrera

Abisai
Herrera

Software Engineer driven by curiosity and innovation. Turning lines of code into products that matter.

ABOUT ME

Software Developer with proven experience in projects for Mabe Global, developing scalable web solutions for e-commerce across Latin America and Canada. Successfully led enhancements to administrative platforms for Casas del Migrante in Guatemala, improving data collection efficiency by over 70%. Skilled in Java, Python, JavaScript, HTML, and CSS, with strong emphasis on performance, usability, and code quality. Quick to adapt to new technologies and known for delivering innovative solutions in multidisciplinary teams. Currently seeking opportunities to contribute to impactful tech projects and grow in challenging environments.

Experience

  • Enapsys (Ciancoders), CDMX, México

    Senior Commerce FullStack Developer (Outsourcing)
    • Designed and implemented key features in e-commerce platforms using SAP Commerce, optimizing user experience and increasing conversion rates for brands such as Mabe Global, GE Appliances Canada, Shasa Mexico, and Nutec.
    • Led the development of platforms for GE Profile Mexico and GE Profile Colombia, ensuring scalability, high performance, and on-time delivery in coordination with technical and business teams.
    • Developed a modern Angular storefront for Monogram Canada and Latin America, significantly enhancing the user interface and navigation experience across mobile and desktop devices.
    • Implemented critical integrations including payment gateways, order replication, business services with Cloud Hot Folder, and CI/CD tools; also contributed to SAP Commerce version upgrades to keep the platform up-to-date and secure.
    • Built backend solutions with Spring Boot for Estafeta Mexico, including a web service for OpenText, a file orchestrator (CSV to XML), and a log automation tool, optimizing data flow and operational traceability.

  • Ciancoders, Quetzaltenango, Guatemala

    FullStack Developer
    • Developed a secure and efficient REST API to handle requests, approval workflows, and internal notifications, improving traceability and interdepartmental coordination, with Azure Active Directory authentication integration.
    • Contributed to enhancements in Prenda Crédito’s loan management system using Django REST Framework and React, implementing key features for handling difficult collections and improving overdue account control.
    • Developed and maintained a React Native mobile application for Prenda Crédito, enabling financial advisors to access critical client and credit status information in the field.
    • Collaborated in agile environments with QA and UX/UI teams, ensuring iterative deliveries aligned with business goals and end-user needs.

  • Freelance Developer, Guatemala

    Freelance Backend Developer
    • Technically designed and developed the backend of the Migrant Flow Control System for Casa del Migrante Guatemala, achieving a 70% reduction in migrant registration time through automation and digitalization.
    • Implemented an administrative platform for Mujeres Transformando el Mundo using Django, focusing on efficiency, functionality, and ease of use for the organization’s administrative team.
    • Took full ownership of the backend development lifecycle as a freelancer, from design to testing, demonstrating the ability to deliver high-quality, end-to-end solutions independently.
    • Wrote modular and reusable code, including libraries and utilities that support long-term scalability and maintainability.
    • Designed robust, optimized databases and developed Django REST Framework APIs, enabling seamless integration with external services and enhancing system interoperability.

  • Freelancer for Agropecuaria Popyan/USAID, Guatemala

    FullStack Developer
    • Development of key features with NestJS and Next.js for an agricultural management platform, improving operational efficiency and user experience.
    • Redesign of the web application using Tailwind CSS, achieving a more intuitive and attractive interface that facilitated navigation and usage by users.

Projects

I have participated in a variety of projects, mainly web development in e-commerce and administrative management areas. Here are some highlights:

Monogram Canada and Latin America
JavaSAP CommerceAngularSpringSQL Server

Monogram Canada and Latin America

Development of a modern Angular storefront for Monogram, enhancing user experience and navigation on both mobile and desktop devices. This project was carried out in collaboration with the development team, focusing on an intuitive and attractive interface.

Project link
GE Appliances Canada
JavaSAP CommerceSpringJavaScriptHTMLLessSQL Server

GE Appliances Canada

E-commerce website for GE Appliances in Canada, averaging over 100,000 monthly visits. I participated in the development of key features, order processes, and user experience optimization.

Project link
GE Profile Mexico and Colombia
JavaSAP CommerceSpringJavaScriptHTMLLessSQL Server

GE Profile Mexico and Colombia

E-commerce platforms for GE Profile in Mexico and Colombia, focused on selling premium appliances. Responsible for implementing both sites, with an emphasis on optimizing user experience and improving the efficiency of the purchase process.

Project link
Migrant Flow Control System
PythonDjangoDRFReactPostgreSQLDocker

Migrant Flow Control System

Web application designed to streamline the registration and management of migration flows, significantly reducing processing time. Responsible for backend development, including the implementation of a REST API, database design, and optimization of the application architecture. Implemented nationwide at Casa del Migrante Guatemala and Pastoral Movilidad Humana.

Easy IP Finder
JavaScriptHTMLCSSChrome Extension API

Easy IP Finder

Chrome extension that emerged from the need in my work to constantly check the public IP address to request access to my company's test sites. With a single click on your browser’s toolbar, you can instantly view your public IP address, whether IPv4 or IPv6! But there’s more: my tool enhances your online experience by allowing you to copy your IP address directly to the clipboard from the popup window.

Project link
Tigo Infracloud
JavaSpring BootAngularOracleDBAzure Active DirectoryDocker

Tigo Infracloud

ITID Requirements Tool is a platform where the IT Infrastructure Delivery team can standardize, manage, prioritize, and balance the workload of requests made by different Tigo departments for servers or resource expansions on existing infrastructure.

Open Text API Bridge and File Orchestrator
JavaSpring BootOpenText

Open Text API Bridge and File Orchestrator

Development of a web service for integrating text files with Open Text, a file orchestrator (CSV to XML), and a log automation tool. The web service allows users to upload files, process them, and send them to Open Text for processing. It also allows users to upload historical CSV files and convert them into XML files for use in Open Text.

Prenda Crédito
PythonDjangoDRFReact NativeReact

Prenda Crédito

Development of improvements to a React Native mobile application, the admin portal in React, and a REST API in Django for credit management with collection. The improvements enabled financial advisors to access critical information about clients and credit status, enhancing operational efficiency.

Mabe Chile
JavaSAP CommerceSpringJavaScriptHTMLLessSQL Server

Mabe Chile

E-commerce website for Mabe in Chile, offering an optimized shopping experience for users on both mobile and desktop devices. I participated in the development of key functionalities, primarily the integration with the Transbank Webpay payment method.

Project link
Secure Password Generator
TypeScriptJavaScript

Secure Password Generator

TypeScript library for generating secure and random passwords, with customizable options for length and character types. Ideal for web developers looking to enhance their applications' security by generating robust passwords.

Project link