Skip to content
BackNov 8
Stefan V.
Upwork badge

Stefan V.

Flutter/FlutterFlow Developer

Mobile App Developer | Flutter & FlutterFlow Specialist I am a dedicated mobile app developer with 4+ years of hands-on experience in Flutter and FlutterFlow, backed by a degree in Computer Science from the Faculty of Electrical Engineering. I specialize in crafting beautiful, intuitive, and high-performance mobile apps, with expertise spanning the entire development lifecycle—from UI/UX design and architecture to deployment. Whether you need a visually stunning app or a custom UI that enhances user experience, I can bring your vision to life with precision and creativity. 🚀 What I Offer: End-to-End App Development: I bring your vision to life with full app development, ensuring top-quality performance and user experience. UI/UX Expertise: Skilled in building sleek, user-friendly interfaces using Flutter and FlutterFlow to provide an intuitive, visually appealing app experience. Design Patterns: Proficient in implementing clean architecture and design patterns in Flutter apps, ensuring scalable and maintainable code. Landing Pages & Single-Page Websites: I also design and develop modern landing pages and single-page websites using HTML, CSS, and JavaScript — perfect for showcasing apps, services, or MVP products. Backend & Database Integration: Experienced with Node.js, Firebase and Supabase for scalable backend solutions, and SQLite for offline capabilities. Version Control: Knowledgeable in Git and GitHub for code versioning, collaboration, and project management. Automation & Build Tools: Familiar with Buildship for optimized development workflows. Tools & Technologies: Flutter, FlutterFlow, Javascript, CSS, HTML, Supabase, Firebase, SQL, RevenueCat, Paypal, OneSignal, Admob ads, Unity ads, Git, Buildship Mobile Stores Publishing: Proficient in app deployment, ensuring smooth and compliant launches on the Google Play Store and Huawei App Gallery. I’m here to collaborate with clients to deliver high-quality, responsive apps that engage users. Whether it’s building from scratch, adding features, refining UI, or following best practices with design patterns, I strive to make each project a success. Let's work together to bring your app ideas to life!

🇷🇸Bor, Serbia$20/hr100% JSS3.59 (11)Since Mar 2016

Earnings and projects

MRR
$840

Last 6 months ÷ 6

World#55,827 / 412k
🇷🇸Country#533 / 4,015
Revenue, last 30 days
$1.1k

Last 6 months: $5k

World#39,582 / 412k
🇷🇸Country#416 / 4,015
Total earnings
$20k

Billed in all: $20k

World#141,552 / 412k
🇷🇸Country#1,832 / 4,015
Per project
$1.1k

$1.3k in the last 6 months

World#116,911 / 412k
🇷🇸Country#1,328 / 4,015
Projects, last 6 months
4
50% fixed50% hourly
World#51,816 / 412k
🇷🇸Country#426 / 4,015
Projects in all
18

Across 21 contracts

71% fixed29% hourly
World#143,610 / 412k
🇷🇸Country#1,831 / 4,015

Earnings, last 30 days

$20.3k+$1.1k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$19k$20k$21kOct 9Oct 24Nov 8

Skill rankings: Top 7% in Retrofit

Ranked by MRR among everyone on Upwork with the skill.

  1. #11Retrofit155 freelancers · 🇷🇸 #2Top 7%
  2. #11Mobile Ad Campaign41 freelancers · 🇷🇸 #2Top 27%
  3. #34JetPack272 freelancers · 🇷🇸 #3Top 13%
  4. #45Firebase Realtime Database482 freelancers · 🇷🇸 #1Top 9%
  5. #55SQLite680 freelancers · 🇷🇸 #2Top 8%
  6. #73GitLab592 freelancers · 🇷🇸 #1Top 12%
  7. #88Firebase Cloud Firestore869 freelancers · 🇷🇸 #2Top 10%
  8. #146FlutterFlow834 freelancers · 🇷🇸 #2Top 18%