I am a Kotlin/Java Software Engineer with 8+ years of commercial JVM experience across backend systems, Android applications, and Kotlin Multiplatform products.
I work across two connected areas:
Mobile engineering:Kotlin, Java, Android SDK, Jetpack Compose, Kotlin Multiplatform, Coroutines and Flow, Room, SQLDelight, Firebase, Bluetooth Classic/BLE, ELD hardware, and Clean Architecture.
Backend engineering:Spring Boot (MVC and WebFlux), Spring Security, PostgreSQL, MySQL, Redis, R2DBC, JPA/Hibernate, RabbitMQ, REST, WebSocket, Docker, Testcontainers, and resilient external integrations.
Selected experience:
Built and maintained 30+ production Android applications across logistics, agritech, healthcare, fitness, e-commerce, and telematics.
Developed Java and Kotlin Spring Boot backends for logistics, agritech, fitness, analytics, and marketplace products.
Built KMP applications for Android and iOS with shared networking, storage, and business logic.
Integrated real-time Bluetooth and ELD hardware into production mobile applications.
Architected calista.mx using Spring Boot WebFlux, PostgreSQL, Elasticsearch, Redis, MinIO, RabbitMQ, React, and a FastAPI RAG assistant.
I can own a feature end-to-end, from Android or web UI through API contracts, backend services, databases, integrations, testing, and deployment.
AI is an additional engineering capability rather than my primary specialization. I build practical RAG assistants and LLM integrations using FastAPI, LangGraph, Qdrant, and modern AI APIs.
Open to Kotlin/Java backend, Android/KMP,
