Victor Derkach

Senior Mobile App Developer

Verified & Top Rated Mobile Developer on Upwork

about

I’m a Flutter-focused mobile developer with over 7 years of experience

I’m a Flutter-focused mobile developer with over 7 years of experience and 20+ apps launched on both the App Store and Google Play. In most of these projects, I took the lead as the sole developer - from shaping the idea and choosing the tech stack to development, testing, and launching.

100% Job Success

You set the vision & requirements, and I'll make them a reality.

Flutter
Dart

Cross-platform App Development: iOS, Android, Web, Desktop

20+ apps published

20+ apps published to Apple App Store / Google Play

skills

Tech Stack & Expertise

I’ll guide you through the process of turning your app idea into a polished, high-performing product your users will love and return to. I build with clean, well-tested, and scalable code - so your app is not just great today, but easy to grow tomorrow.

  • Database + Auth: Firebase, Supabase, Hive, NoSQL, PostgreSQL

  • Payments / Subscriptions: Stripe, RevenueCat, Superwall, Square

  • Maps / GPS Location: Mapbox, Google Maps, Google Places API, OpenStreetMap

  • Push Notifications: FCM, OneSignal, Supabase

  • Analytics and Performance Monitoring Google Analytics, MixPanel SDK, Crashlytics

  • Social Media Integrations: Facebook, Twitter, Instagram, LinkedIn, Snapchat

  • Cloud Services: Google Cloud Platform

  • Cloud Functions: Firebase Functions, NodeJs, Firebase Hosting

  • Bluetooth Low Energy Device Connection / Integration

  • Advertising and Monetization: Google AdMob, Facebook Audience Network SDK, MoPub SDK

  • AI: OpenAI API, Whisper SDK

  • No Code / Low Code Builders: FlutterFlow

portfolio

MemeBot
9000:AI Meme Generator

Unleash your inner meme lord with our hyper-personalized meme generator! Swap faces, create parody posts, and share laughs using AI-powered creativity.Step into the next generation of meme creation with MemeBot9000, the AI-powered meme generator that takes humor to a whole new level. Create hyper-personalized memes, parody posts, face swaps, and more—all tailored to your unique context. Whether you're roasting a friend, celebrating a milestone, or just looking to share a laugh, MemeBot9000 is your go-to funny meme creator!

portfolio

Astral: Guidance & Astrology

Discover Astral: your cosmic coach & guide. Unveil personalized astrology, life-coaching, and therapy for a transformative life journey. Start now!Embark on a Holistic Journey with AstralUnlock the secrets of the cosmos and navigate life's challenges with Astral. Dive into a universe where astrology meets life-coaching and therapeutic wisdom, all tailored uniquely to you.

portfolio

Crossword Solver AI

Introducing Crossword Solver AI, the ultimate crossword companion that revolutionizes the way you approach and solve puzzles! With cutting-edge AI algorithms, hints, explanations, and a user-friendly interface, this app is designed to level up your crossword-solving skills while providing endless hours of entertainment. Crossword lovers of all skill levels, rejoice! Your new favorite crossword assistant is here.

Contact me

Let’s connect!

Clear and consistent communication is key - I’ll keep you in the loop with regular progress updates via Upwork, Zoom, or whatever works best for you. You’ll have a working version on your phone early and often, so we can build your app exactly the way you envision it. Drop me a message or invite me to your job - I’d love to hear more about your project and see how we can bring it to life.