Services
- Software Architecture
- Software Engineering
- Performance Engineering
- Multicore Programming
- Full Stack Web Development
About
DupWin AB is a Swedish single-person IT-consultancy company that is owned and operated by Kjell Winblad. The company is offering high-quality software architecture and engineering consultancy services.
I am Kjell Winblad, the owner of DupWin AB. I love creating responsive and high-quality software systems that are enjoyable to use.
As a person, I am responsible, curious, and persevering. I love to challenge myself and learn new things. That is why I pursued a Ph.D. program focused on concurrent data structures and multicore synchronization after a few years of industry experience.
After completing the Ph.D. program, I have worked three years in the team that is developing and maintaining the open-source industry-strength programming language Erlang at Ericsson. In the Erlang team, I have, among other things, contributed significant scalability and responsiveness improvements to the Erlang run-time system.
With DupWin AB, I will give my customers high-quality software development services by leveraging the experience and knowledge that I have gathered from doing software development and research for over 15 years.
Expertise
- Python
- Java
- C/C++
- Scala
- Erlang
- Golang
- JavaScript (jQuery, ReactJS)
- Multicore Optimizations
- Concurrency
- Data Structures and Algorithms
- Linux
- Godot Game Engine
Education
- Ph.D. Computer Science (Uppsala University)
- Master Computer Science (Uppsala University)
- Bachelor Computer Science (Umeå University)
Our Products
- PingFriend.com - A community platform for table tennis enthusiasts. Connect with players, create groups, upload match results, and engage in discussions about all things table tennis.
- PythonCode.club - A dedicated platform for Python programming challenges and collaboration. Participate in contests, solve a variety of coding problems, and engage with a community of like-minded developers.
Miscellaneous
- Competed in cross country skiing until age 20 (finished top 20 in several competitions with the best Swedish skiers in my age category)
- Top ranked on LeetCode.com (a competitive programming website)
- Personal Best 10km Running: 36m 15s
- Published papers in some of the top conferences and journal for concurrent algorithms
- Loves racket sports (especially table-tennis but nowadays mostly in VR)
- Does physical exercise almost daily (running, roller-skiing and swimming)
Contact
- Name: DupWin AB
- E-mail: kjellwinblad@gmail.com
- Telephone: (+46)73 053 5089
- Organization Number: 559331-0658
- Address: DupWin AB c/o Kjell Winblad, Fridshyddevägen 15, 19136 Sollentuna