Viet Tuan T.
Senior Android (Java/Kotlin) - iOS (Object-C/Swift) - Flutter (Dart)
🌟🌟🌟 TOP RATED 🌟🌟🌟 📌 Flutter • Android • iOS • Cross-Platform • Game & Fintech • Senior Software Engineer with 8+ years of experience in Mobile & Web development • Flutter specialist with strong focus on production apps, performance, and clean architecture • Hands-on experience with Android (Kotlin) and iOS (Swift), both native and cross-platform • Proven Technical Lead / Team Lead experience (4–6 members) • Built and scaled apps in Fintech, Blockchain Wallets, Medical, Social, and Gaming domains • Strong background in architecture design, performance optimization, and CI/CD pipelines • Game development experience (Unity, Cocos2d-x) — great for animations and interactive UI • Product-driven mindset with solid communication and ownership • Fast learner, adaptable, and reliable for long-term projects Skills: Flutter (Proficient, 9/10), Java/Kotlin (Proficient, 9/10), Swift (Proficient, 9/10), Objective-C (Proficient, 9/10), API with PHP (Knowledgeable, 7/10), Angular JS (Knowledgeable, 8/10), Node JS (Knowledgeable, 7/10), Nuxt.js / Next.js (Proficient, 8/10), Unity / Cocos2d-x (Knowledgeable, 7.5/10), IDEs: Eclipse (Proficient, 9/10), Android Studio (Proficient, 9/10), Sketch (Knowledgeable, 7/10), Photoshop (Knowledgeable, 7/10), XD (Knowledgeable, 7/10), Notepad++ (Proficient, 9/10) Tools: SVN (Knowledgeable, 7/10), Jira (Knowledgeable, 7/10), Trello (Proficient, 8/10), GIT (Proficient, 8/10), Bitbucket (Proficient, 8/10), Gitlab (Proficient, 8/10)
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.6k
Billed in all: $140,285$140k
$1.6k in the last 6 months
Across 30 contracts
Earnings, last 30 days
Dotted: longer than usual between two readings. Hatched: over two weeks without one.
Skill rankings: Top 14% in Objective-C
Ranked by MRR among everyone on Upwork with the skill.
- #116Business with 1-9 Employees545 freelancers · 🇻🇳 #2Top 21%🇻🇳#2 of 3
- #178Objective-C1,282 freelancers · 🇻🇳 #8Top 14%🇻🇳#8 of 50
- #197Mobile App Redesign693 freelancers · 🇻🇳 #3Top 28%🇻🇳#3 of 4
- #534Dart2,324 freelancers · 🇻🇳 #9Top 23%🇻🇳#9 of 35
- #658Kotlin3,021 freelancers · 🇻🇳 #16Top 22%🇻🇳#16 of 64
- #732Swift3,634 freelancers · 🇻🇳 #13Top 20%🇻🇳#13 of 82
- #887iOS3,908 freelancers · 🇻🇳 #10Top 23%🇻🇳#10 of 65
- #1,015Android4,975 freelancers · 🇻🇳 #14Top 20%🇻🇳#14 of 88