Core language and platform depth
Advanced Kotlin, structured concurrency, immutable state, lifecycle-aware code, and strong understanding of Android app fundamentals.
Antonio Fco Quintana
Kotlin · Jetpack Compose · Clean Architecture · Madrid, Spain
I build modern Android products with a strong focus on scalability, performance, maintainability, product quality, and elegant user experiences.
Skills
- Kotlin, Coroutines, Flow, StateFlow, SharedFlow
- Jetpack Compose, Material 3, adaptive UI
- Clean Architecture, UDF/MVI, modularization
- Room, DataStore, Paging, WorkManager
- Testing strategy: unit, integration, UI, Compose tests
- Performance: startup, jank, memory, battery, Baseline Profiles
- Security: secrets, secure storage, Play Integrity
- Delivery: Gradle, CI/CD, release automation, observability
Knowledge areas
UI architecture and design systems
Compose-first development, state hoisting, adaptive layouts, accessibility, and reusable design-system components.
Scalable architecture
Layered boundaries, clear contracts, feature modularization, offline-first approaches, and resilient app behavior under real-world conditions.
Data and integration
REST or GraphQL, serialization, paging, sync strategies, caching, conflict resolution, and background work orchestration.
Quality engineering
Test pyramids, deterministic architecture, CI checks, static analysis, crash monitoring, and safe rollouts.
Performance and delivery
Measuring startup and rendering, profiling bottlenecks, release automation, analytics, and continuous product iteration.