Offer

Experience

My company offers the following services:
  • Software development:
    • Desktop applications for Windows, Linux and MacOS
    • Mobile applications for Android and iOS
    • Server (backend) software
  • Server administration:
    • VPS and dedicated servers configuration
    • Maintenance (security, backups)
  • Business processes automation:
    • Gathering data from various sources (SalesForce, AdWords, QuickBooks, Spreadsheets, RingCentral and others)
    • Generating reports
    • Interactive data visualization
    • Workflow automation

Client-oriented approach

Each solution is fully adjusted to clients' demands to meet their unique needs. Cooperation begins with deep analysis and creation of system specification. Gathering client requirements is one of crucial parts of that process. I attach great importance to every detail that is a part of created project. Only thanks to that, project can be conscientiously done.

Contact

If you have some work to be done, feel free to contact me: krystian.duzynski@gmail.com.

References

You can see my projects and references on the following pages:

Reviews

Working with Krystian was fantastic. He was very fast, clearly very proficient at Python programming (in my case for Blender scripting) and communicated well throughout the process. As an added bonus, his English is great. If I have more work like this in the future, I'll invite Krystian, first.
Client from United States - Pine Creek Carving
Krystian worked hard to make sure the custom software performed without bugs. Would defiantly use again.
Client from United States, Jupiter, Florida
He has an incredible fast speed, he completed the project before agreed timeline, very sound technically. This is the best guy I have worked with on Upwork in terms of speed. I would like to work with him again.
Client from United Kingdom, Newcastle Upon Tyne
Great work, super fast and reliable. A+
Client from United States, California
Best freelance developer i have ever worked with. I will not be looking for anyone else, so long as this amazing and talented man is available. Great communication, great scheduling, great English, and Superior Skills!
Client from United States
Best freelance developer i have ever worked with. Krystian did fantastic work, and I couldn't be happier with his performance and the product he built me. Krystian built a custom server based program for me. He was very proficient and asked questions to determine what my needs were, while also implementing creative solutions. He asked concise questions and made sure to set deliberate marks in order to ensure he was on the right track. Almost most of all, Krystian was FAST and didn't require mountains of explanation to enact features. I will use Krystian again for future needs.
Client from United States
Krystian is not only extremely knowledgeable about 3D, but very helpful, providing suggestions to improve the project and always communicative and cooperative. He created a great app for me. You should not go past Krystian for any 3D project.
Client from Australia