Android Engineer focused on Kotlin, mobile architecture, and practical AI-assisted development.
I have 14+ years of professional experience building production native Android apps for retail and travel brands. My work has centered on hands-on Android engineering, architecture, code quality, performance, delivery, and technical leadership in enterprise environments.
I am currently open to hands-on Android individual contributor roles where I can contribute immediately, continue strengthening modern Android practices, and grow with the team.
- Kotlin, Android SDK, Jetpack, Jetpack Compose
- Coroutines, Flow, MVVM, MVI
- Clean Architecture, modularization, dependency injection
- REST APIs, Firebase, Git, GitHub
- Unit testing, CI/CD, Gradle, Android performance
- AI-assisted development with tools such as Codex, Claude Code, Copilot, custom agents, MCP, and reusable engineering workflows
- Building scalable Android foundations with clear architecture boundaries.
- Creating reusable UI systems and modern Android patterns.
- Improving maintainability through modularization, code review, testing, and delivery practices.
- Using AI-assisted engineering responsibly to speed up repetitive development work while keeping human ownership of architecture, quality, and product decisions.
Most of my professional Android work has been delivered in private enterprise codebases, so my public GitHub is a complementary view of my technical interests rather than a complete record of my experience.
I am actively improving this profile with selected Android samples, architecture notes, and AI-assisted engineering workflows that do not expose client intellectual property.
- Android Performance Sample: Android/Kotlin tech talk companion covering overdraw, layout hierarchy, memory, and computation performance topics.
- BaseCleanArchitectureMVVM: Android Clean Architecture + MVVM starter template showing a multi-module Kotlin project structure.
- Practicing Design Patterns: Android/Kotlin design-pattern practice organized as step-by-step branches, currently focused on the Strategy pattern.
- MU8: Android/Kotlin Marvel sample from the Architect Coders program, focused on architecture, collaboration, and testing.
- Pokewex: AI-assisted development demo from my Mastering the Agentic Terminal talk, built in an unfamiliar stack using parallel Codex and Claude workflows.
- AI Expert, DevExpert (Antonio Leiva), 2026
- Architect Coders, DevExpert (Antonio Leiva), 2020
- Professional Android App Development, GalileoX / Universidad Galileo via edX, 2016
- Scrum Fundamentals Certified (SFC), SCRUMstudy, 2018
- LinkedIn: https://www.linkedin.com/in/recaldev/
- GitHub: https://github.com/recaldev


