Rasmus Kaj
System Developer at KTH - Royal Institute of Technology
Stockholm, Stockholm County, Sweden
Summary
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Rockstar🎓
Top SchoolRasmus Kaj is a pragmatic system developer with 18 years of experience building web and desktop applications, Unix-style control programs, and backend services using Rust, Python, Java and C++. Based in Stockholm, he combines long-term institutional work at KTH with recent system development at Sveriges Radio, making him adept at both academic administrative systems and production broadcast software. He contributes to open-source Rust imaging libraries—improving scaling algorithms and format options—which reflects a modern systems focus beyond his traditional Java/Django stack. Comfortable across GNOME/X11 and web frameworks, he brings deep Unix tooling instincts and a preference for clean, maintainable code that bridges research, operations, and end-user needs.
18 years of coding experience
8 years of employment as a software developer
KTH Royal Institute of TechnologyFredrika Bremer
Swedish, English
Stackoverflow
4,334reputation
1.0mreached
102answers
3questions
django
top-5%
Github Skills (16)
rust10
image-processing10
django9
jpeg9
png9
decoder8
pixel8
decode8
image-decoder8
virtual6
sql6
switch-statement6
python6
sorting6
mysql6
Programming languages (14)
Github contributions (5)
image-rs/image
Jan 2018 - Jun 2020
Encoding and decoding images in Rust
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 reviews, 21 commits, 7 PRs in 2 years 5 months
Contributions summary:Rasmus contributed to the image-rs/image repository by implementing and improving image scaling functionalities. Their work included adding example code for testing downscaling and fixing issues related to scaling algorithms. They also addressed compatibility issues by updating dependencies and removing unnecessary code for modern Rust versions, and introducing new features like the option to expose format-specific options when saving an image such as jpeg quality.
rustdecoding-imagespixel
kaj/ructe
Sep 2016 - Jan 2023
Rust Compiled Templates with static-file handling
Contributions:45 releases, 13 reviews, 578 commits in 6 years 5 months
file-handlingrusttemplate-engine
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