Kevin Pleitez

Experience

1. Fullstack & Mobile Developer

   Business Development Group, S.A.

   May 2025 – Present

   Outsourcing for Walmart Centroamérica

   • Drive the development of new features and provide comprehensive support for the Walmart CA e-commerce mobile application across its multiple retail formats.
   • Lead the architectural design and development using native and multiplatform technologies for high-scale retail environments.
   • Maintain and scale backend services built with Node.js (NestJS/Express) and Java (Spring Boot) to support regional operations.
   • Leverage advanced AI agents and CLIs (Gemini CLI, Claude Code, GitHub Copilot, OpenCode) to accelerate code generation, refactoring, and automated testing.
   • Optimize production software by implementing best practices in both frontend and backend layers for mission-critical applications.
2. Mobile & Backend Developer

   NIU SA de CV (Niu App)

   Jan 2023 – May 2025

   • Developed core features for the NIU Fintech mobile application, enhancing financial services for users across the region.
   • Estimated and implemented complex functionalities for iOS (Swift/UIKit/SwiftUI) and Android (Kotlin/Jetpack Compose).
   • Designed cross-platform components using Flutter and KMP (Kotlin Multiplatform) to unify business logic.
   • Integrated SDD (Software Driven Design) workflows to streamline development cycles and maintain high code quality standards.
3. Fullstack Developer

   Grupo GD SA de CV

   Apr 2021 – Jun 2022

   • Designed and developed end-to-end applications using PHP (Laravel/CodeIgniter) and Java (Spring Boot/JSP).
   • Built dynamic web interfaces using Angular and React.
   • Managed service deployments and infrastructure on Google Cloud Platform (GCP).
   • Led iOS development workstreams using Swift for specialized client requirements.
4. Fullstack Developer

   Creativa Consultores SA de CV

   May 2018 – Feb 2021

   • Developed robust enterprise systems for government and international clients using Java (Spring Boot, JSP) and C#.
   • Engineered multiple native and hybrid mobile applications, tailoring solutions for diverse platform requirements.
   • Built web frontends with Angular, jQuery, and responsive CSS.
   • Managed full lifecycle development, including CI/CD pipeline configuration and cloud service deployments.
5. Instructor

   Universidad de Sonsonate

   Jul 2019 – Dec 2020

   • Taught advanced courses in Mobile Development, Compilers, and Operating Systems.
6. Software Developer

   Sandoval y Guevara Inversiones

   Jan 2018 – May 2018

   • Developed and maintained web applications using PHP (CodeIgniter) and JavaScript.