Available to hire
Hi, I’m Paul John B. Parreno, a development support engineer and engineering manager with over 14 years of experience building mobile apps. I specialize in the Android ecosystem (Kotlin, Java) and have led cross-functional teams in Agile environments, delivering high-quality products while solving complex technical problems for partners like Google and Accenture. I’ve contributed to Wear OS projects, developed POCs with Google Navigation SDK, and guided architecture and UI/UX implementations to meet client needs.
I’ve helped shape product strategy, mentored engineers, and maintained end-to-end SDLC knowledge—from architecture and UI/UX to deployment and client services. I’m based in Reading, UK, and I enjoy turning strategic objectives into valuable mobile solutions that scale.
Skills
Language
English
Fluent
Japanese
Beginner
Work Experience
Senior Android Apps Engineer at Accenture
September 1, 2025 - September 1, 2025Senior Android Apps Engineer leading a team of 4 engineers, responsible for app architecture and UI/UX for Wear OS features, including Complications for the Google collaboration on the MyFitnessPal project. Led design, analysis, and execution of UI/UX requirements to deliver a quality Wear OS product on schedule despite first-time Wear OS challenges.
Associate Manager at Accenture
September 1, 2025 - September 1, 2025Managed a multi-location frontline support team, forecasted manpower, secured resource availability, oversaw end-to-end project invoicing monthly, and collaborated with Delivery leads to reach project goals. Focused on employee retention and helping team members achieve their career goals.
Subject Matter Expert - Data Governance (SalesOps CDM) at Google
August 1, 2025 - August 1, 2025Provided data governance guidance and support for client data integration, ensuring correct ingestion, transformation, and storage. Identified data discrepancies and collaborated with cross-functional teams to implement scalable fixes and promote a data-driven culture.
Lead Developer Support Engineer at Google
January 1, 2025 - January 1, 2025Led a cross-functional team of 4-5 members across international locations, providing development support for Google Fit and Android Health Connect. Facilitated MBRs/QBRs/ABRs, reported on delivery metrics, managed high-risk P0-P1 cases, and ensured continuous value to clients through proactive issue resolution.
Senior Android Developer / Unity Developer at Life is Good Philippines Inc.
March 1, 2021 - March 1, 2021Senior Android Developer maintaining and optimizing the ZoZo Wear Android App; refactored 25% of legacy code to MVVM with Kotlin, improving performance by about 10%. Worked as a Unity Developer on game-related projects, including using Unity’s ML Agent Toolkit.
Senior Android Developer / Unity Developer at Arcanys
January 1, 2020 - January 1, 2020Senior Engineer and Development Lead overseeing a group of Android developers; responsible for end-to-end Android project lifecycles, mentoring teammates, evaluating new libraries, coordinating with UI teams to build client UX, and fostering an Agile, self-managing team.
Android & iOS App Developer at Interfone
December 1, 2017 - December 1, 2017Started the mobile development team as the sole Android and iOS developer, later expanding to MVP-driven architecture. Implemented Android features (e.g., Google Maps, In-app Purchases) and contributed to iOS development, driving architectural growth toward MVP.
Android & iOS App Developer at Arcanys
June 1, 2015 - June 1, 2015Lead Android developer and co-contributor to iOS projects; contributed to design, planning, and MVP builds; coordinated with UI teams to craft client app UX.
iOS App Developer at Exist Global
June 1, 2013 - June 1, 2013Co-contributor for iOS apps; contributed to Globe GCash iOS app development and production bug fixes to improve user experience.
Junior Android & iOS App Developer at NextIX Systems
June 1, 2012 - June 1, 2012Junior developer contributing to Android and iOS MVPs; collaborated with UI teams to design UX from scratch and embraced Agile practices.
Senior Android Apps Engineer & Associate Manager at Accenture
March 1, 2021 - September 1, 2025Led a 4-person Android development team, architected Wear OS features (Complications) for a Google-driven MyFitnessPal project, and oversaw UI/UX implementation, project architecture, and cross-location collaboration to deliver a high-quality Wear OS app on schedule.
Lead Developer Support Engineer at Google
November 1, 2021 - January 1, 2025Delivered development support for partners using Google Fit and Android Health Connect, led 4–5 cross-functional teammates, and facilitated regular business reviews with delivery metrics while handling high-priority P0-P1 issues.
Senior Android Developer / Unity Developer at Life is Good Philippines Inc.
September 1, 2020 - March 1, 2021Maintained and updated the ZoZo Wear Android app; refactored legacy code into MVVM with Kotlin, achieving notable performance improvements and aligning with modern architecture standards.
Mobile Developer at Newlogic
January 1, 2020 - June 1, 2020Developed native Android components and cross-platform plugins to support UNICEF projects, focusing on robust mobile solutions and integration with back-end services.
Senior Android Developer / Unity Developer at Arcanys
January 1, 2017 - January 1, 2020Senior engineering lead overseeing a team of Android/Unity developers, SDLC governance, library updates, UI coordination, and Agile-aligned MVP/prototype delivery for client projects.
Android and iOS App Developer at Interfone
June 1, 2015 - December 1, 2016Launched the mobile development team as the sole Android and iOS developer, guided architectural growth, MVP delivery, and collaboration with UI teams to craft client apps from scratch.
Android and iOS App Developer at Arcanys
June 1, 2013 - June 1, 2015Lead Android development and co-contributor on iOS projects; contributed to MVP builds and coordinated with UI teams to create compelling UX for client apps.
iOS App Developer at Exist Global
June 1, 2012 - June 1, 2013Co-contributor for iOS apps, including the Globe GCash iOS implementation; addressed production bugs and contributed to app enhancements.
Junior Android and iOS App Developer at NextIX Systems
June 1, 2011 - June 1, 2012Supportive role in Android and iOS app development, contributing to prototypes and MVPs, and collaborating with UI teams to craft user experiences.
Education
Qualifications
Industry Experience
Software & Internet, Professional Services, Media & Entertainment
Skills
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