Senior Android Developer with 12+ years of experience and Master's in Computer and Information Sciences from AUT. Delivered enterprise solutions across Android development, Java backend systems, AI/ML integration, and DevOps/Infrastructure. Proven track record leading technical teams, architecting scalable systems, deploying IoT solutions.

Zhang Leozhang

Senior Android Developer with 12+ years of experience and Master's in Computer and Information Sciences from AUT. Delivered enterprise solutions across Android development, Java backend systems, AI/ML integration, and DevOps/Infrastructure. Proven track record leading technical teams, architecting scalable systems, deploying IoT solutions.

Available to hire

Senior Android Developer with 12+ years of experience and Master’s in Computer and Information Sciences from AUT. Delivered enterprise solutions across Android development, Java backend systems, AI/ML integration, and DevOps/Infrastructure. Proven track record leading technical teams, architecting scalable systems, deploying IoT solutions.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

Work Experience

AI Research & Mobile Engineer at Auckland University of Technology (research)
January 1, 2024 - January 1, 2026
Designed and delivered a multimodal AI platform (ChatClothes) integrating computer vision, fusion models, and LLM-powered workflows. Owned end-to-end project work from system design and development through evaluation, deployment, and user validation. Deployed and optimized AI models on edge devices including Raspberry Pi and Android phones, running lightweight LLMs and vision models with resource-constrained ARM hardware using offline inference and on-device prediction. Published research at IVCNZ 2025.
Application Developer – Fintech / Senior Mobile Engineer at Chinxiaotong Technology Co., Ltd.
January 1, 2018 - January 1, 2024
Full-stack Android + web delivery for a live commerce system. Built Java/Kotlin Android client using WebRTC/RTP streaming (RTMP/WebRTC/HLS), and a multilingual architecture including C# + C++ media core, Python analytics, and Lua configuration. Supported 1000+ peak concurrency and achieved 99.5% stream availability. Technical stack included Kotlin, Android SDK, NDK/JNI, WebSocket, TCP/UDP, CI/CD, Tinker/AndFix, JPush, RTP, HLS, and EaseMob.
Senior Android Engineer at Chinxiaotong Technology Co., Ltd.
January 1, 2013 - January 1, 2018
Architected Android client for an enterprise messaging platform handling 5,000+ DAU and 500K+ daily messages with sub-200ms latency. Implemented NDK/JNI TCP/UDP transport layer, WebSocket connection persistence, offline message sync, and push backup push channel strategy (OEM ROM keep-alive for Xiaomi/Huawei/Oppo). Migrated core IM from unstable in-house C++ to EaseMob cloud, eliminating 90%+ defects. Built distributed file storage (100GB+), applied hotfix framework (Tinker/AndFix), and improved performance across cold start, ANR, OOM, and APK size.
Technology Company Engineer (Application Developer – Fintech / Senior Mobile Engineer) at Chinxiaotong Technology Co., Ltd.
January 1, 2013 - January 1, 2024
Built and operated Android-based platform components across fintech and enterprise systems, including event-driven IoT and messaging solutions. Worked on an IoT manufacturing platform across 10+ sites (RFID/barcode/electronic scales/conveyors/Android terminals) using ActiveMQ/Kafka, Docker, and Spring Cloud (3rd party devices, socket bridging, and efficiency improvements). Built an Android device management platform for discovery/binding/remote control and gateway firmware interactions via Zigbee/WiFi. Developed a crypto trading Android app with real-time market data (WebSocket), order book rendering, candlestick charts, encrypted local wallets, and MVVM/Clean architecture. Contributed to mobile platform infrastructure adopted across 12+ enterprise applications, using multi-module architecture, shared SDKs, and reusable networking/business frameworks; reduced duplicated code by 50%+.

Education

Master's in Computer and Information Sciences at Auckland University of Technology
January 1, 2024 - January 1, 2026
Bachelor of Software Engineering at Hebei University of Science & Technology
January 1, 2009 - January 1, 2013

Qualifications

IoT Fundamentals
January 1, 2020 - July 9, 2026
Science and Technology Achievement Award (Smart Manufacturing)
January 1, 2020 - July 9, 2026
Software Design Engineer Certificate
January 1, 2019 - July 9, 2026

Industry Experience

Software & Internet, Financial Services, Telecommunications, Manufacturing, Education