Matias Radzinski

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.

About

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.

  • Joined July 2025

Languages

  • EnglishFluent
  • Spanish; CastilianFluent

Industry experience

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

Projects · 2

PayPal Android and iOS app

  • App Developer

Reddit Android app

  • App Developer

Work experience· 13 roles

Staff Android Developer · RedditMar 2022 – Present · 4 yrs 9 mos

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 · PayPalMar 2022 – Jul 2025 · 3 yrs 5 mos

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.

Senior Android Developer · RedditMar 2022 – Present · 4 yrs 9 mos

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.

Mobile Lead / Architect · GloriaSep 2021 – Jul 2025 · 3 yrs 11 mos
Tech Lead / Mobile Architect · SpaceDevMay 2020 – Jul 2025 · 5 yrs 3 mos
Senior Android Developer / Tech Lead / Mobile Architect · SpaceDevNov 2019 – May 2021 · 1 yr 7 mos
Senior Mobile Developer / Tech Lead / PM · BixlabsNov 2019 – Jul 2025 · 5 yrs 9 mos
Senior Android Consultant · United VirtualitiesAug 2016 – Jul 2025 · 9 yrs

Education

MSc · Imperial College London2010 – 2012
BEng · University of Westminster2006 – 2010
MSc, Software Engineering · Imperial College London2010 – 2012
BEng, Computer Systems Engineering · University of Westminster2006 – 2010

Certifications and awards

Google Associate Android Developer2015 – 2018
Google Associate Android Developer2018 – 2021
Google Associate Android Developer2021 – 2024

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