# Android Consultant & Developer

Location[Spain](https://jobicy.com/resume-region/spain.md)Rate, USD Not specifiedWork schedule Full Time,  Contract, Links   Language skills Catalan, English, French, German, SpanishAvailable for Hire Yes [Hire me](#resume-dialog)

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## About me

I help companies build, modernize, and scale complex Android apps and SDKs when internal teams run into architectural, performance, or delivery bottlenecks. I work as an external Android consultant and step in where senior technical direction is needed without hiring a full-time employee.

I specialize in designing and refactoring Android architectures, building and hardening SDKs and internal libraries, and leading major migrations from legacy stacks to modern Kotlin-based solutions. My work often involves Clean Architecture, modularization, Jetpack Compose, Kotlin Coroutines/Flow, and Android performance and stability improvements.

I have more than 8 years of experience working on Android apps and SDKs across healthcare, finance, telecom, logistics, and mission-critical environments. I am comfortable working on regulated systems, Bluetooth and IoT integrations, and long-term B2B engagements with distributed teams.

In recent roles, I have acted as an external technical lead, coordinating delivery, mentoring developers, reviewing code, and supporting CI/CD pipelines. I have also contributed to Kotlin Multiplatform initiatives and helped teams modernize legacy Java/RxJava codebases into scalable Kotlin solutions.

My background includes leading Android development for startups and enterprise clients, building Bluetooth synchronization SDKs, developing MCPTT and QR-based solutions, and supporting apps used in high-availability environments. I value maintainable architecture, reliability, and practical engineering decisions.

I am based in Spain and available for remote B2B Android consulting for EU and US clients. I bring a strong mix of hands-on development, technical leadership, and cross-functional collaboration to complex mobile projects.

## Professional area

### [Developer & Engineer](https://jobicy.com/resume-category/dev.md)

## Skills

### [CICD](https://jobicy.com/resume-skill/cicd.md)[Firebase](https://jobicy.com/resume-skill/firebase.md)[Git](https://jobicy.com/resume-skill/git.md)[Java](https://jobicy.com/resume-skill/java.md)[Jira](https://jobicy.com/resume-skill/jira.md)[JUnit](https://jobicy.com/resume-skill/junit.md)[Kotlin](https://jobicy.com/resume-skill/kotlin.md)[Linux](https://jobicy.com/resume-skill/linux.md)[Mentoring](https://jobicy.com/resume-skill/mentoring.md)[Real-Time Object-Oriented Modeling (ROOM)](https://jobicy.com/resume-skill/room.md)[Redux](https://jobicy.com/resume-skill/redux.md)[Retrofit](https://jobicy.com/resume-skill/retrofit.md)

## Education

Oct 2020 - Current  Master's Degree in Artificial Intelligence  @  Universidad Internacional Menéndez Pelayo

Studies in Python, Pandas, Keras, TensorFlow, Scikit-learn, Seaborn, Scala, Spark, big data, deep learning, NLP, metaheuristics, supervised and unsupervised learning, and complex data/time series.

Aug 2018 - Dec 2018  Quantitative Finance, Data Analysis, Database Design  @  University of Memphis

Coursework in quantitative analysis for economics, data analysis, and database design.

Oct 2015 - Sep 2020  Bachelor's Degree in Accounting and Finance  @  Universitat Rovira i Virgili

Studies in international markets, data analysis, statistics, probability theory, accounting, business management, marketing, risk management, and finance.

Dec 2019 - Dec 2020  Introduction to Computer Science  @  University of Harvard C

Coursework in algorithms, Python, CSS, HTML, and PHP.

## Experience

May 2023 - Current  External Android Consultant (B2B) – SDKs, Architecture & BLE  @  Self-employed / External Consulting

Lead Android consultant for international clients across fintech, logistics, healthcare, and mission-critical environments. Designed and implemented modular architectures, built SDKs and apps, migrated legacy codebases to Kotlin/Coroutines/Flow, acted as technical lead, and supported CI/CD and delivery coordination.

Jul 2022 - Nov 2024  Lead Android Developer  @  Insulclock

Led Android development in a startup environment, migrated Firebase to REST APIs and Java/RxJava to Kotlin/Coroutines/Flow, architected and developed a Bluetooth SDK, designed modular Clean Architecture, and implemented testing and documentation processes for security and medical certification.

Jun 2023 - Dec 2023  Android Developer (Contractor)  @  HISP

Contributed to the open-source DHIS2 SDK used by WHO/UN in 90+ countries, developed new features, refactored code, fixed bugs, migrated the SDK to Kotlin/Coroutines/Flow for KMM, and improved tests and CI pipelines.

Sep 2021 - Jul 2022  Mid/Lead Android Developer  @  Atos

Built and maintained native apps for military, pharmaceutical, and energy clients, designed architectures, managed releases with the iOS team, onboarded developers, assigned tasks, elicited requirements, and managed Play Console and Firebase projects.

May 2021 - Aug 2021  Lead Android Developer  @  Timingsense

Maintained and extended Android apps for the timekeeping/sports sector, coordinated features and releases with the iOS team, and managed more than 100 Play Console apps.

Nov 2020 - May 2021  Java/SQL Software Developer  @  TLSI

Worked on desktop, server, and Android development from scratch, handled bug fixing and helpdesk support, and worked with Azure Active Directory.

Sep 2018 - Sep 2021  Android Developer (Contractor)  @  Wordee

Built an Android app from scratch, added new features, fixed bugs, managed Firebase integrations and Play Store releases, and implemented payments, authentication, and REST APIs.

Sep 2015 - Dec 2018  Various Early Roles (Software & Other)  @  Various employers

Worked across software development, finance, and retail; gained experience in Java, SQL, desktop apps, IT support, customer service, teamwork, problem-solving, and client communication.

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