Dynamic Staff Android Developer with over 14 years of experience in Android and mobile development. Proficient in Kotlin, Jetpack Compose, and mobile architecture, specializing in scalable, maintainable solutions. Successfully led projects at Reddit, enhancing app stability and user engagement through architectural innovation and mentoring junior engineers. With a strong background in cross-functional collaboration and strategic alignment, ready to drive impactful Android initiatives that align with business objectives.

Matias Radzinski

Dynamic Staff Android Developer with over 14 years of experience in Android and mobile development. Proficient in Kotlin, Jetpack Compose, and mobile architecture, specializing in scalable, maintainable solutions. Successfully led projects at Reddit, enhancing app stability and user engagement through architectural innovation and mentoring junior engineers. With a strong background in cross-functional collaboration and strategic alignment, ready to drive impactful Android initiatives that align with business objectives.

Available to hire

Dynamic Staff Android Developer with over 14 years of experience in Android and mobile
development. Proficient in Kotlin, Jetpack Compose, and mobile architecture, specializing in scalable, maintainable solutions. Successfully led projects at Reddit, enhancing app stability and user engagement through architectural innovation and mentoring junior engineers. With a strong background in cross-functional collaboration and strategic alignment, ready to drive impactful Android initiatives that align with business objectives.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert

Language

English
Fluent
Spanish; Castilian
Fluent

Work Experience

Senior Android Developer at Reddit
March 1, 2022 - Present
Lead Android projects, enhancing app performance and user engagement. Utilized Kotlin, Compose, Flow, Coroutine, and various design patterns to develop efficient and maintainable code. Implemented features to improve app stability and user satisfaction, driving measurable improvements in downloads and retention. Analyzed user feedback and performance metrics to inform design enhancements. Coordinated with cross-functional teams to ensure timely delivery and fostered team collaboration and mentorship.
Senior Android Developer at PayPal
March 1, 2022 - July 16, 2025
Collaborated closely with product and internal teams to plan and execute new features for the Android main product, while maintaining and improving existing features. Played a key role in reviewing, implementing, and enhancing security models in compliance with international laws.
Mobile Lead / Architect at Gloria
September 1, 2021 - July 16, 2025
Led the architecture and development of the Gloria mobile platform for both iOS and Android. Managed a mobile team including iOS and Android developers and was responsible for overseeing both platforms pending release.
Tech Lead / Mobile Architect at SpaceDev
May 1, 2020 - July 16, 2025
Managed development, architecture, and mobile projects in the banking sector. Responsible for a team of 8 developers and staff augmentation. Worked with clients such as CobrosYa and MVD Cobros.
Senior Mobile Developer / Tech Lead / PM at Bixlabs
November 1, 2019 - July 16, 2025
Integrated over 10 projects as developer, architect, and project manager across various sectors including social networks, machine learning for real-time translation, health, and hotel industries.
Senior Android Developer / Backend Engineer at PedidosYa / Delivery Hero
August 1, 2016 - July 16, 2025
Maintained, improved, and extended the PedidosYa Android platform. Worked as backend engineer on internal APIs and admin platforms supporting customer service and support teams.
Senior Android Consultant at United Virtualities
August 1, 2016 - July 16, 2025
Provided senior Android consultancy on a part-time basis to global clients such as HP Enterprise, Nike, and National Geographic, delivering hourly-rated consultations.
Mobile Developer / Backend Developer / Tech Lead at Tata Consultancy Services
March 1, 2015 - July 16, 2025
Worked on various projects for clients such as Samsung and PwC. Started in a support role and moved to Android development for Samsung. Later worked as technical leader and backend developer on a hot desking project for PwC.
Staff Android Developer at Reddit
March 20, 2022 - Present
Spearheaded Android projects, emphasizing architectural patterns, platform stability, and user engagement. Implemented features to improve stability and user satisfaction, collaborating with Kotlin, Jetpack Compose, Flow, and design patterns to create maintainable, scalable codebases.
Senior Android Developer / Tech Lead / Mobile Architect at SpaceDev
November 1, 2019 - May 1, 2021
Led Android development and mobile architecture, oversaw cross-functional teams, and guided post-acquisition transition and integration. Aligned technical goals with business strategy to deliver scalable mobile platforms.
Senior Android Developer / Backend Engineer at PedidosYa / Delivery Hero
March 1, 2015 - August 1, 2016
Refined, optimized, and expanded the Android platform, prioritizing architecture and scalability. Contributed as backend engineer, supporting internal APIs and admin platforms to enhance operational efficiency. Collaborated with cross-functional teams to deliver robust mobile and backend solutions.
Senior Android Consultant at United Virtualities
February 1, 2014 - August 1, 2016
Provided expert Android consultancy to global clients, delivering technical guidance on architecture and integration. Solutions delivered for clients such as HP Enterprise and National Geographic focused on scalable, maintainable codebases.
Mobile Lead / Backend Engineer at Tata Consultancy Services
January 1, 2010 - March 1, 2015
Developed and architected mobile and backend solutions for enterprise-level projects, emphasizing scalable platforms and alignment with client objectives. Progressed from support roles to technical leadership.

Education

MSc at Imperial College London
January 1, 2010 - December 31, 2012
BEng at University of Westminster
January 1, 2006 - December 31, 2010
MSc, Software Engineering at Imperial College London
January 1, 2010 - January 1, 2012
BEng, Computer Systems Engineering at University of Westminster
January 1, 2006 - January 1, 2010

Qualifications

Google Associate Android Developer
January 1, 2015 - December 31, 2018
Google Associate Android Developer
January 1, 2018 - December 31, 2021
Google Associate Android Developer
January 1, 2021 - December 31, 2024

Industry Experience

Software & Internet, Financial Services, Media & Entertainment, Travel & Hospitality, Professional Services