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Mashrafi A.
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Mashrafi A.

React Native Developer | Performance & Production Apps

I’m a React Native Engineer specializing in building, debugging, and optimizing production-ready mobile applications. I can help you with: Building new React Native features and complete mobile screens Debugging complex Android/iOS issues and production crashes Improving app startup time, rendering performance, and list performance Optimizing React Native and JavaScript code Integrating native Android/iOS functionality Designing maintainable mobile architectures Working with REST APIs, authentication, push notifications, Firebase, maps, and third-party SDKs Maintaining and improving existing React Native applications What sets me apart is that I don’t just focus on making a feature work—I focus on understanding why the application behaves the way it does, finding the root cause of problems, and building solutions that remain maintainable as the app grows. I’m particularly strong in React Native performance, debugging, JavaScript behavior, rendering, native integration, and production issues. If you have an existing React Native app that needs new features, bug fixes, performance improvements, or deeper technical problem-solving, I can help.

🇧🇩Narayanganj, Bangladesh$17/hr100% JSS5.00 (8)Since Sep 2022

Earnings and projects

MRR
$438

Last 6 months ÷ 6

World#83,228 / 412k
🇧🇩Country#2,093 / 15.0k
Revenue, last 30 days
$0

Last 6 months: $2.6k

Total earnings
$3.1k

Billed in all: $3.2k

World#295,133 / 412k
🇧🇩Country#10,193 / 15.0k
Per project
$312

$438 in the last 6 months

World#227,683 / 412k
🇧🇩Country#6,388 / 15.0k
Projects, last 6 months
6
67% fixed33% hourly
World#34,405 / 412k
🇧🇩Country#1,961 / 15.0k
Projects in all
10
70% fixed30% hourly
World#201,797 / 412k
🇧🇩Country#11,225 / 15.0k

Earnings, last 30 days

$3.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$3,150$3,200$3,250$3,300Oct 8Oct 23Nov 7

Skill rankings: Top 13% in Redux

Ranked by MRR among everyone on Upwork with the skill.

  1. #18Mobx103 freelancers · 🇧🇩 #1Top 17%
  2. #332Software Architecture & Design1,465 freelancers · 🇧🇩 #3Top 23%
  3. #419Redux3,245 freelancers · 🇧🇩 #13Top 13%
  4. #883ExpressJS5,651 freelancers · 🇧🇩 #30Top 16%
  5. #1,269Firebase6,978 freelancers · 🇧🇩 #26Top 18%
  6. #1,782MongoDB10,865 freelancers · 🇧🇩 #44Top 16%
  7. #2,032React Native10,486 freelancers · 🇧🇩 #33Top 19%
  8. #2,267MySQL14,471 freelancers · 🇧🇩 #83Top 16%