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Duc L.
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Duc L.

Senior Android Developer | Kotlin, Jetpack Compose, Firebase | 7+ Yrs

Senior Android Developer | Kotlin & Jetpack Compose Expert | End-to-End App Delivery With 6 years of dedicated experience in the Android ecosystem, I don’t just write code—I build scalable mobile products that succeed on the Google Play Store. My expertise lies in transforming complex concepts into high-performance, user-centric applications using Kotlin, Java, and Jetpack Compose. Technical Core: - Architecture: MVVM, MVI, and Clean Architecture for long-term maintainability. - Core Skills: Android SDK, Coroutines, Flow, Dagger/Hilt, and Retrofit. - Specialized Features: Advanced image processing, custom UI/UX animations, and seamless API integrations. - Full Lifecycle: From initial prototyping and UI design to Play Store optimization and maintenance. I pride myself on writing clean, robust code and collaborating effectively within Agile, multicultural teams. Whether you’re a startup looking for an MVP or an established business scaling your mobile presence, I have the technical depth and project experience to deliver. Let’s connect and turn your vision into a top-tier Android application.

🇻🇳Ha Tinh, Vietnam$10/hr100% JSSSince Apr 2026

Earnings and projects

MRR
$1.2k

Last 6 months ÷ 6

World#39,952 / 412k
🇻🇳Country#318 / 3,463
Revenue, last 30 days
$1.8k

Last 6 months: $7.3k

World#24,394 / 412k
🇻🇳Country#210 / 3,463
Total earnings
$7.4k

Billed in all: $7.8k

World#221,262 / 412k
🇻🇳Country#1,660 / 3,463
Per project
$3.7k

$3.7k in the last 6 months

World#46,106 / 412k
🇻🇳Country#313 / 3,463
Projects, last 6 months
2

Across 3 contracts

67% fixed33% hourly
World#88,918 / 412k
🇻🇳Country#941 / 3,463
Projects in all
2

Across 3 contracts

67% fixed33% hourly
World#328,886 / 412k
🇻🇳Country#2,809 / 3,463

Earnings, last 30 days

$7.8k+$1.8k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$6k$7k$8kOct 8Oct 23Nov 7

Skill rankings: Top 6% in Android Studio

Ranked by MRR among everyone on Upwork with the skill.

  1. #9Software Design Pattern91 freelancers · 🇻🇳 #1Top 10%
  2. #20Google Play282 freelancers · 🇻🇳 #2Top 7%
  3. #25JetPack272 freelancers · 🇻🇳 #1Top 9%
  4. #48Android Studio805 freelancers · 🇻🇳 #1Top 6%
  5. #67Android App776 freelancers · 🇻🇳 #2Top 9%
  6. #68Android SDK805 freelancers · 🇻🇳 #1Top 8%
  7. #326Kotlin3,021 freelancers · 🇻🇳 #9Top 11%
  8. #409Mobile App3,535 freelancers · 🇻🇳 #5Top 12%