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Jc Miñarro

@jcmiarro

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Senior Android engineer and tech lead focused on building scalable, user-first mobile products.

Spain

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What I'm looking for

I am looking for a mobile or technical lead role where I can drive Android architecture, mentor engineers, shape product direction, and work in a collaborative, product-focused team.

I am a senior Android engineer and tech lead with a strong foundation in computer engineering and years of hands-on mobile development experience. I build robust Android applications, lead teams, and contribute to open-source SDKs.

My career includes work across startups and established companies in Spain, the UK, Sweden and the US, delivering production apps such as Fever, Jobandtalent, Degoo, Instabridge and several SDKs at Stream.io. I specialize in Kotlin/Java Android development, performance, and system integration.

I bring a problem-solving attitude, team spirit, and responsibility to every project, with experience in backend technologies and databases (MySQL, PostgreSQL, MongoDB) that inform better mobile architecture decisions. I also contribute to public repositories and SDKs used by other developers.

I seek opportunities where I can lead technical direction, mentor engineers, and deliver high-quality mobile experiences while continuing to contribute to open-source and product-centric engineering.

Experience

Work history, roles, and key accomplishments

Current

Android Tech Lead

Current

Stream.io Inc

Apr 2020 - Present (5 years 6 months)

Led Android development and technical teams for Stream's SDKs (Chat, Video, Feed), driving SDK architecture, releases, and developer experience improvements.

Kotlin Android SDK Development Team Leadership GitHub CI CD Video Streaming

Android Engineer

Degoo Backup AB

Jan 2019 - Apr 2020 (1 year 3 months)

Developed Degoo's Android app and worked on Instabridge, enhancing backup and connectivity features and improving app reliability for large user bases.

Android Kotlin Java Cloud Storage REST APIs SQLite Git Performance Tuning

Android Engineer

Football Opportunities SL

Nov 2018 - Apr 2020 (1 year 5 months)

Worked on the Footters Android app, implementing streaming and user features to support sports content delivery to subscribers.

Android Streaming ExoPlayer REST APIs Kotlin Git Firebase

Android Engineer

Future Workshops

Jan 2017 - Jan 2019 (2 years)

Developed and maintained Android applications (MyOSN) for social and media clients, focusing on stable releases and feature delivery.

Android Java REST APIs Git Media SDKs UI Development Testing

Android Engineer

Jobandtalent

Nov 2015 - Dec 2016 (1 year 1 month)

Contributed to Jobandtalent's Android app, delivering features and performance improvements to support the platform's job marketplace.

Android Java REST APIs SQLite Git Performance Optimization

Android Engineer

Feverup

Apr 2015 - Nov 2015 (7 months)

Developed Fever's Android product, contributing to feature development and app releases to improve event discovery and booking experience.

Android Java REST APIs Firebase Analytics Crash Reporting

Android Developer

Intelygenz

Apr 2013 - Apr 2015 (2 years)

Built Android apps (Vehway, Yes.fm, EagleNinja) delivering new features and integrations, improving app stability and user experience for consumer-facing products.

Android Java SQLite REST APIs Git CI CD Debugging

Android Developer

Appdream AG

Aug 2012 - Apr 2013 (8 months)

Developed multiple Android applications (DroidManager, DTM, MPU Laboruntersuchungen) implementing platform features and publishing to Google Play to reach end users.

Android Java REST APIs Debugging Gradle APK Packaging

Programmer

LinkUs

Nov 2010 - Mar 2011 (4 months)

Installed and configured DNS load balancing and digital certificates, developed PHP web applications and managed databases, and configured OS for ARM processors to support embedded deployments.

PHP MySQL Java DNS Linux Shell Scripting