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Jan D.
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Jan D.

Expert Backend&Full-Stack|All Platforms|3D Coding|Debug&Optimization

As a qualified Software Developer & 3D Programmer with over 15 years of experience in the industry, I offer knowledge and proficiency in a large number of programming languages, frameworks and platforms. This includes (almost) anything from lowest-level embedded development on Linux with pure C over time-critical optimization of video encoding in AWS EC2 to web-only and mobile-first frontend development with and without 3D rendering. If it can be done via programming, I am confident that I can do it, and will do so reliably and with transparent communication. The services I offer include, but are not limited to: - Application development - Web development - Command line utilities and scripting - Backend, Frontend or Full-Stack development - All platforms as well as cross-platorm - Working on existing code bases or setting a project up from scratch - Debugging pesky and hard-to-track issues in your code base - Optimizing existing applications for performance, memory use, maintainability - Removing code smell and cleaning up/updating legacy code (the oldest so far was C code from 1995, can you beat that?) - API design and integration, including AI integration - Developing tests, from encompassing unit testing to full E2E tests where applicable - Setup of automated build servers Programming languages and tools: - C/C++ Ecosystem: C, C++, Qt, QML, wxWidgets, GTK, boost, valgrind, ImGui, ZeroMQ - Java Ecosystem: Java, Spring, Apache, Gradle, Maven, Kotlin - Python Ecosystem: Python, Flask, Django, NumPy, Plotly, Dash, PyCharm, PyQt, Matplotlib, Selenium, Pytest - JavaScript/Web Ecosystem: JavaScript, TypeScript, Vue, React, Node.js, Next.js, three.js - PHP Ecosystem: PHP, Laravel, CakePHP, Drupal - Other Languages/Technologies: C#, Flutter, bash, Godot, GDScript, Unity, Unreal Engine and more!

🇫🇮Kangasala, Finland$38/hr100% JSS5.00 (1)Since May 2016

Earnings and projects

MRR
$4.9k

Last 6 months ÷ 6

World#5,689 / 412k
🇫🇮Country#11 / 569
Revenue, last 30 days
$5.8k

Last 6 months: $29k

World#4,416 / 412k
🇫🇮Country#9 / 569
Total earnings
$287k

Billed in all: $291k

World#8,381 / 412k
🇫🇮Country#12 / 569
Per project
$72k

$29k in the last 6 months

World#421 / 412k
🇫🇮Country#2 / 569
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇫🇮Country#173 / 569
Projects in all
4

Across 6 contracts

0% fixed100% hourly
World#283,741 / 412k
🇫🇮Country#435 / 569

Earnings, last 30 days

$291k+$5.8k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$285k$290k$295kOct 8Oct 23Nov 7

Skill rankings: Top 0.93% in 3D Rendering

Ranked by MRR among everyone on Upwork with the skill.

  1. #6FFmpeg217 freelancers · 🇫🇮 #1Top 3%
  2. #15Software Debugging409 freelancers · 🇫🇮 #1Top 4%
  3. #25Process Optimization874 freelancers · 🇫🇮 #1Top 3%
  4. #62Database3,249 freelancers · 🇫🇮 #2Top 2%
  5. #663D Rendering7,060 freelancers · 🇫🇮 #1Top 0.93%
  6. #66Linux3,038 freelancers · 🇫🇮 #1Top 2%
  7. #81App Development2,592 freelancers · 🇫🇮 #1Top 3%
  8. #109C++4,442 freelancers · 🇫🇮 #1Top 2%