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Shaolin Z.
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Shaolin Z.

Expert iOS | Android | Flutter | React Native | Python | AWS

✅ 13 Years Professional Experience ✅ 40+ Mobile Apps ✅ Top Rated Plus Developer Hey there! 👋 I'm Sherwin, an expert Engineer with 13+ years of experience at big tech companies. I'm experienced leading, designing and implementing core mobile features in fast-paced, technology-driven environments with worldwide impact and multiple stakeholders. I am fluent in English and have experience working with scalable and testable code, REST APIs, multiple design patterns, CI/CD pipelines and version control. 🏆 Worked in the multinational company MicroStrategy, Developed apps with over 100 million daily users such as DiDi and Kuaishou before. 🚀 Expertise in Technologies: o Native Development: Swift, SwiftUI, Objective-C, Kotlin, Java, Jetpack Compose, HarmonyOS o Cross-Platform Frameworks: React Native , Flutter o DataBase: Realm, CoreData, Firebase FireStore, Firebase Realtime Database, Supabase, RoomDatabase o Web: Flutter Web o Deploy: AWS S3, Lamda, CloudFront, EC2, OpenShot o Server Development: Python, TS ✅ My experience domains: o AI Agent o Bluetooth / Smart Watch / Camera Domain o Fitness / Health Domain o OpenAI / Assistance / Whisper o Location Tracking / Travel o Social Media/Dating Domain/Video/Audio chats o Video/Audio player processing application o Financial / Shopping Domain o Payment / In App Purchase / Apple Pay / Stripe I'm excited to bring my experience and skills to new projects and deliver high-quality work on time and within budget. Let's make great apps together! Regards, Shaolin

🇨🇳Hangzhou, China$20/hr100% JSS4.99 (42)Since Sep 2021
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Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#14,127 / 412k
🇨🇳Country#57 / 2,007
Revenue, last 30 days
$0
Total earnings
$211k

Billed in all: $221k

World#14,127 / 412k
🇨🇳Country#57 / 2,007
Per project
$3.3k

$0 in the last 6 months

Projects, last 6 months
1
0% fixed100% hourly
World#128,095 / 412k
🇨🇳Country#730 / 2,007
Projects in all
63

Across 70 contracts

31% fixed69% hourly
World#48,158 / 412k
🇨🇳Country#230 / 2,007

Earnings, last 30 days

$221kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$217.5k$220.0k$222.5k$225.0kOct 8Oct 23Nov 7

Skills