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!
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $29k
Billed in all: $291,172$291k
$29k in the last 6 months
Across 6 contracts
Earnings, last 30 days
Skill rankings: Top 0.93% in 3D Rendering
Ranked by MRR among everyone on Upwork with the skill.
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