About

I'm a Senior Android Engineer with more than 5 years of experience designing, building and optimizing native applications, focused on the Fintech industry — banking and digital payments where correctness isn't optional.

My core is Kotlin: advanced asynchronous concurrency with Coroutines & Flow, and rigorous Clean Architecture / MVVM / MVI. I like owning critical engineering initiatives end to end — large-scale test refactoring, multi-country extensible architectures — and lately I've been building AI-powered applications, both at work and on my own stack.

5+ y
ANDROID / KOTLIN
3,000+
TESTS MIGRATED J4→J5
100%
COUNTRY EXTENSIBILITY
Experience
2023 — Present

Senior Android Engineer · Globant

Santander & Openbank projects · internal AI initiative
  • Multi-country extensibility (Openbank): engineered configuration in the payments repository to reach 100% country extensibility, enabling fast adaptation to new markets.
  • Large-scale testing (Santander): led the migration of 3,000+ unit tests from JUnit 4 to JUnit 5, significantly improving build speed.
  • AI & multimedia: building apps for an internal AI initiative; previously shipped complex video-streaming functionality.
  • Accessibility: adapted screens and UI components in the dedicated a11y team.
  • Kotlin
  • Jetpack Compose
  • Coroutines · Flow
  • Hilt
  • MVI
  • JUnit 5
  • Accessibility
2021 — 2023

Android Developer · Rudo (Laberit)

Green-field products & client technical consulting
  • Full-cycle green-field (Hidroten): owned the entire lifecycle of a factory inventory app — architecture, UI, SOAP business logic, client bug resolution.
  • Technical consulting (Loterías Castillo): architected and built an MVP demo, managing client communication directly.
  • Collaborated with the international Santander team (Poland) on bug-fixing.
  • Kotlin
  • XML
  • MVVM
  • SOAP · REST
  • Koin
Selected Work
PERSONAL PLATFORM

Jarvis — AI Personal Assistant

A self-hosted assistant platform that orchestrates a large-language-model agent over real tools: tasks, projects, calendar, briefings and automated data pipelines. Built end to end — backend, real-time web HUD, voice, offline PWA and deployment — as a testbed for LLM tool-use orchestration and production-grade async Python.

Agentic core

LLM + tool-calling

Real-time HUD

live web dashboard

Voice interface

speech in / TTS out

Offline-first PWA

service worker + cache

  • Python
  • FastAPI
  • asyncio
  • Claude Agent SDK
  • WebSockets
  • PWA
  • Edge-TTS

Private project — architecture & engineering shown; no live instance or personal data is exposed.

Education
DAW — Development of Web Applications · Vocational Training · 2020 – 2021
DAM — Development of Multi-Platform Applications · Vocational Training · 2018 – 2020
Contact

Open to senior Android / KMP conversations — remote, or on-site in Valencia. If you're building a team that cares about clean, well-tested native apps, let's talk.

miguelmialdeamonzo@gmail.com ↗ Download CV ↓

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