# Android Consultant & Developer Location SpainDesired Salary UnspecifiedWork preference Full Time, ContractLinks Joined2 Jul 2026Field / Industry Software Engineering * SharePreferences:Status: Actively lookingRelocation: NoNotice Period: ImmediateSkill Assessments:This user has not passed any tests yet Languages: Catalan - English - French - German - Spanish - Report [Overview](#overview) ## 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. ## Skills ### [Java](https://jobicy.com/talent/java.md)[Linux](https://jobicy.com/talent/linux.md)[Jira](https://jobicy.com/talent/jira.md)[Git](https://jobicy.com/talent/git.md)[Mentoring](https://jobicy.com/talent/mentoring.md)[Kotlin](https://jobicy.com/talent/kotlin.md)[Redux](https://jobicy.com/talent/redux.md)[Junit](https://jobicy.com/talent/junit.md)[Firebase](https://jobicy.com/talent/firebase.md)[Retrofit](https://jobicy.com/talent/retrofit.md) ## Education Universidad Internacional Menéndez Pelayo Oct 2020 - Current Master's Degree in Artificial Intelligence 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. University of Memphis Aug 2018 - Dec 2018 Quantitative Finance, Data Analysis, Database Design Coursework in quantitative analysis for economics, data analysis, and database design. Universitat Rovira i Virgili Oct 2015 - Sep 2020 Bachelor's Degree in Accounting and Finance Studies in international markets, data analysis, statistics, probability theory, accounting, business management, marketing, risk management, and finance. University of Harvard C Dec 2019 - Dec 2020 Introduction to Computer Science Coursework in algorithms, Python, CSS, HTML, and PHP. ## Experience External Android Consultant (B2B) – SDKs, Architecture & BLE @ Self-employed / External Consulting May 2023 - Current 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. Lead Android Developer @ Insulclock Jul 2022 - Nov 2024 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. Android Developer (Contractor) @ HISP Jun 2023 - Dec 2023 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. Mid/Lead Android Developer @ Atos Sep 2021 - Jul 2022 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. Lead Android Developer @ Timingsense May 2021 - Aug 2021 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. Java/SQL Software Developer @ TLSI Nov 2020 - May 2021 Worked on desktop, server, and Android development from scratch, handled bug fixing and helpdesk support, and worked with Azure Active Directory. Android Developer (Contractor) @ Wordee Sep 2018 - Sep 2021 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. Various Early Roles (Software & Other) @ Various employers Sep 2015 - Dec 2018 Worked across software development, finance, and retail; gained experience in Java, SQL, desktop apps, IT support, customer service, teamwork, problem-solving, and client communication.