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Viacheslav D.
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Viacheslav D.

Senior Software Developer | C++ / Qt Desktop & Flutter Mobile

I’m a senior software developer with 13+ years of professional experience building cross-platform desktop applications and modern mobile apps. I enjoy working on well-architected, long-living products, whether it’s a complex desktop system or a polished mobile application. My primary focus is C++ / Qt desktop development, with Flutter-based iOS development as a strong secondary specialization. ▸ Desktop Development - C++ / Qt / QML / Qt3D - 13+ years developing desktop applications for Windows & macOS - Deep experience with Qt, QML, QtQuick, and Qt3D - Custom GLSL shaders and rendering pipelines - Clean QML architecture and state management - Qt3D geometry processing and visualization - CMake setup for medium to large, multi-module projects ▸ Architecture & Code Quality - MVVM / MVP / MVC architectures - Modular, scalable application design - Refactoring and improving existing codebases - Unit testing and test-driven development ▸ Database - SQLite ▸ Mobile Development — Flutter (iOS/Android) - Building apps using Flutter, Dart, and Swift - Clean, reusable architectures and packages - Publishing, maintaining, and updating apps

🇺🇦Lviv, Ukraine$30/hr100% JSS5.00 (1)Since May 2025

Earnings and projects

MRR
$290

Last 6 months ÷ 6

World#99,549 / 412k
🇺🇦Country#3,742 / 14.3k
Revenue, last 30 days
$0

Last 6 months: $1.7k

Total earnings
$6.3k

Billed in all: $6.6k

World#235,747 / 412k
🇺🇦Country#9,864 / 14.3k
Per project
$3.1k

$1.7k in the last 6 months

World#53,675 / 412k
🇺🇦Country#2,946 / 14.3k
Projects, last 6 months
1
0% fixed100% hourly
World#128,095 / 412k
🇺🇦Country#4,718 / 14.3k
Projects in all
2
50% fixed50% hourly
World#328,889 / 412k
🇺🇦Country#12,165 / 14.3k

Earnings, last 30 days

$6.6kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$6.5k$6.6k$6.7k$6.8kOct 9Oct 24Nov 8

Skill rankings: Top 17% in Perl

Ranked by MRR among everyone on Upwork with the skill.

  1. #13QML55 freelancers · 🇺🇦 #3Top 24%
  2. #18CMake84 freelancers · 🇺🇦 #5Top 21%
  3. #21Software Design Pattern91 freelancers · 🇺🇦 #1Top 23%
  4. #37Perl216 freelancers · 🇺🇦 #4Top 17%
  5. #68Qt Framework323 freelancers · 🇺🇦 #9Top 21%
  6. #388Desktop Application1,674 freelancers · 🇺🇦 #39Top 23%
  7. #516Dart2,324 freelancers · 🇺🇦 #33Top 22%
  8. #714App Development2,592 freelancers · 🇺🇦 #66Top 28%