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I am a Senior Android Engineer focused on scalable architectures, Kotlin modernization, and BLE-enabled medical and cross-device systems. I have 8+ years building high-performance Android applications across healthcare, VR, and consumer products. Relocated to Finland and now seeking long-term Android engineering roles.…

Jun Lu

App Developer, Web Developer, Front-End Developer, +2

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I am a Senior Android Engineer focused on scalable architectures, Kotlin modernization, and BLE-enabled medical and cross-device systems. I have 8+ years building high-performance Android applications across healthcare, VR, and consumer products. Relocated to Finland and now seeking long-term Android engineering roles.…

Available to hire

I am a Senior Android Engineer focused on scalable architectures, Kotlin modernization, and BLE-enabled medical and cross-device systems.

I have 8+ years building high-performance Android applications across healthcare, VR, and consumer products. Relocated to Finland and now seeking long-term Android engineering roles.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Finnish

Beginner

Work Experience

Android Engineer Intern at Helsinki City Library (Oodi: Digituki Program Support)

April 1, 2025 - May 1, 2025

Applied Android engineering expertise to deliver mobile- and platform-centric technical solutions in a large-scale public technology environment. Translated complex technical concepts into clear, user-facing solutions across mobile devices and digital platforms for an international, non-technical audience.

Android Engineer at Pico Technology, Beijing

January 1, 2019 - January 1, 2021

Modernised core Android modules from Java (MVP) to Kotlin (MVVM), improving code clarity, reducing crash rates, and accelerating feature delivery cycles. Developed VR dual‑capture feature merging front‑camera + VR streams, increasing cross‑platform engagement for creators and enterprise users. Built Android system components spanning hybrid Native + WebView features and file management, supporting external storage, network protocols, and async data loading. Contributed to system‑update module with breakpoint‑resume and modular patching, reducing update failures and improving device longevity.

Android Engineer at GoHealth Data Technology

January 1, 2018 - January 1, 2019

Built core patient-flow features (registration, booking, consultations) supporting efficient clinic operations. Integrated real-time doctor–patient messaging, improving communication reliability. Developed e-prescription and medication-search features supporting clinical accuracy.

Android Engineer at Andon Health

January 1, 2016 - January 1, 2018

Developed BLE communication modules for reliable medical-device data transfer. Built Bluetooth connectivity testing tools to support QA and debugging. Refactored legacy code using MVP, improving app performance and contributing to a 20% increase in Google Play ratings.

Android Engineer at Jinsheng Online Tech

January 1, 2015 - January 1, 2016

Built health and lifestyle features including symptom tracking and habit management. Implemented targeted push notifications to support engagement and retention. Optimised UI components and release workflows to reduce bugs.