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Ahsen S.
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Ahsen S.

Sr. Full Stack Mobile App Dev | Flutter | Kotlin

Need a Mobile App that actually scales, performs, and feels right to users? You’re in the right place. I’m a senior mobile developer with 8+ years of experience building 60+ production apps across fintech, e-commerce, healthcare, logistics, and on-demand platforms. I work primarily in Flutter and Kotlin, crafting clean, maintainable architectures and smooth user experiences that hold up in real-world usage. Here’s what I bring to your project: • Scalable mobile architecture (MVVM, Clean Architecture) • High-performance Flutter & native Android (Kotlin) apps • REST/GraphQL API integration & complex data flows • Real-time features (WebSockets, Firebase, push notifications) • Payment, maps, location, and 3rd-party SDK integrations • CI/CD, automated builds, Play Store/App Store releases • Leading remote teams & owning delivery end-to-end I don’t just code features — I help shape reliable mobile products. If you want someone who can translate ideas into polished, shipped apps (without hand-holding), let’s talk.

🇵🇰Lahore, Pakistan$20/hr100% JSS4.93 (12)Since Aug 2016

Earnings and projects

MRR
$2.3k

Last 6 months ÷ 6

World#17,999 / 412k
🇵🇰Country#2,003 / 52.9k
Revenue, last 30 days
$0

Last 6 months: $14k

Total earnings
$99k
World#41,968 / 412k
🇵🇰Country#3,270 / 52.9k
Per project
$6.6k

$7k in the last 6 months

World#27,407 / 412k
🇵🇰Country#1,450 / 52.9k
Projects, last 6 months
2
50% fixed50% hourly
World#88,917 / 412k
🇵🇰Country#17,052 / 52.9k
Projects in all
15

Across 22 contracts

41% fixed59% hourly
World#161,381 / 412k
🇵🇰Country#26,772 / 52.9k

Earnings, last 30 days

$98.6kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$97k$98k$99k$100kOct 9Oct 24Nov 8

Skill rankings: 🇵🇰Top 3% in Java in Pakistan

Ranked by MRR among everyone in Pakistan with the skill.

  1. #9AI Speech-to-Text82 freelancersTop 11%
  2. #25Dart580 freelancersTop 4%
  3. #25ChatGPT API Integration338 freelancersTop 7%
  4. #25FlutterFlow227 freelancersTop 11%
  5. #26Kotlin506 freelancersTop 5%
  6. #31Java888 freelancersTop 3%
  7. #31Google Cloud Platform417 freelancersTop 7%
  8. #75SQL1,491 freelancersTop 5%