Devin W.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Mobile Development Expert | React Native, Flutter, Swift, Java

Mobile Development Expert with over 8 years of experience, specializing in cross-platform solutions using React Native and Flutter. Adept at delivering high-performance, user-centric applications across various platforms. Additionally skilled in native mobile development with extensive expertise in Java, Kotlin, Swift, SwiftUI, and RxSwift. Dedicated to employing the latest technologies to deliver innovative, cost-effective solutions and outstanding user experiences. - JavaScript | TypeScript: React, React Native - Dart: Flutter - Java | Kotlin: Android - Swift | SwiftUI | RxSwift: iOS - Firebase, GCP, AWS - Design: Figma, Adobe XD, Adobe Photoshop

🇺🇸Miami Springs, United States$80/hr100% JSS5.00 (8)Since Sep 2024

Earnings and projects

MRR (estimate)

≈ $1,712≈$1.7k

An estimate from an earlier read

#27,482 / 412,022 / 412k

🇺🇸#5,612 / 62,087 / 62.1k

Revenue, last 30 days

$0$0

Last 6 months: $10k

Total earnings

$57,488$57k

Billed in all: $59,738$60k

#67,713 / 412,022 / 412k

🇺🇸#12,510 / 62,087 / 62.1k

Per project

$4,791$4.8k

$2.6k in the last 6 months

#36,314 / 412,022 / 412k

🇺🇸#6,008 / 62,087 / 62.1k

Projects, last 6 months

25% fixed75% hourly

#51,813 / 412,022 / 412k

🇺🇸#7,181 / 62,087 / 62.1k

Projects in all

Across 16 contracts

50% fixed50% hourly

#183,649 / 412,022 / 412k

🇺🇸#26,220 / 62,087 / 62.1k

$59.7kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch

No data since Nov 5, 2026.

Skill rankings: Top 3% in RxSwift

Ranked by MRR among everyone on Upwork with the skill.

RxSwift110 freelancers · 🇺🇸 #1Top 3%🇺🇸#1 of 5
#98SwiftUI951 freelancers · 🇺🇸 #18Top 10%🇺🇸#18 of 80
#155Dart2,324 freelancers · 🇺🇸 #11Top 7%🇺🇸#11 of 70
#247Kotlin3,021 freelancers · 🇺🇸 #20Top 8%🇺🇸#20 of 158
#316Swift3,634 freelancers · 🇺🇸 #40Top 9%🇺🇸#40 of 343
#366iOS3,908 freelancers · 🇺🇸 #43Top 9%🇺🇸#43 of 296
#395Android4,975 freelancers · 🇺🇸 #39Top 8%🇺🇸#39 of 295
#549Firebase6,978 freelancers · 🇺🇸 #60Top 8%🇺🇸#60 of 339

Devin W.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Earnings and projects

Earnings, last 30 days