Johan Granström
Innovator
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolJohan Granström is an innovator and seasoned software engineer with 13 years of industry experience, currently building formal verification products and consulting from Stockholm. He helped architect the Internet Computer at DFINITY and led teams across execution environment, governance, and financial integration, bringing rare expertise in large-scale distributed systems and blockchain. Previously he scaled YouTube Content ID infrastructure at Google, delivering systems-level solutions that enabled orders-of-magnitude improvements in matching and throughput. Johan combines deep theoretical training—a PhD in mathematical logic—with hands-on engineering across languages from Rust and C++ to front-end work (notably contributions to the popular countUp.js Angular integration). He thrives on solving problems others call impossible, moving seamlessly between research-grade formal methods and production-grade system design. Colleagues describe him as a pragmatic scientist who turns complex correctness requirements into auditable, scalable software.
13 years of coding experience
19 years of employment as a software developer
Bachelor of Science, Mathematics, Bachelor of Science, Mathematics at Stockholm UniversityStudentexamen, Matematik, Studentexamen, Matematik at Danderyds gymnasiumPhD, Mathematical Logic, PhD, Mathematical Logic at Uppsala University
English, Swedish, Latin, German
Stackoverflow
576reputation
86kreached
16answers
0questions
Github Skills (14)
javascript10
front-end-development10
angular10
integrations9
integrate9
lib9
quill6
sass6
css6
nodejs6
observable6
deep-linking6
auth6
rxjs6
Programming languages (13)
Github contributions (5)
inorganik/countUp.js
Jan 2016 - Feb 2016
Animates a numerical value by counting to it
Role in this project:
Front-end Developer
Front-end DeveloperContributions:6 commits, 2 PRs, 1 comment in 1 month
Contributions summary:Johan primarily contributed to the front-end functionality of the `countup.js` library, specifically focused on integrating with Angular applications. They implemented a directive (`angular-countUp.js`) to enable animated number counting within Angular projects. This involved adding support for custom formatting using post-formatter functions and integrating Angular filters for value transformation. Additionally, the user made modifications to the core `countUp.js` file to support the post-formatter functionality.
countingreactanimationanimates
jgranstrom/sass-extract-loader
Jan 2017 - Dec 2017
Webpack loader for https://github.com/jgranstrom/sass-extract
Contributions:46 commits, 7 pushes, 1 branch in 10 months
sasswebpack-loaderscsssass-extract-loaderwebpack
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