Fredrik Fornwall
Data Platform Engineer
Stockholm, Sweden
Summary
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Top expert inAndroid Open Source EcosystemOpen-Source Software Development and Collaboration Technologies
Fredrik Fornwall is a Data Platform Engineer in Stockholm with 16 years of hands-on experience building resilient, cross-platform systems from embedded Linux tooling to cloud data pipelines. He combines low-level systems expertise—proven by extensive Android and Linux compatibility work in projects like fish-shell, proot and Neovim—with higher-level data and platform work at companies such as Tink and Avanza. Fredrik has shipped production-grade Android tooling and Termux ecosystem improvements, contributed to notable open-source projects including wgpu and winit, and fixed subtle platform bugs (even isolating an NVIDIA Vulkan driver issue) that improved real-world stability. He is comfortable across languages and domains (Rust, Java, system calls, networking, CI/tooling) and has repeatedly modernized legacy stacks and CI environments. Known as a pragmatic problem solver who prioritizes portability and observability, he also brings customer-focused engineering experience from industrial and financial sectors. His background in theoretical physics and long-term open-source involvement gives him a rare blend of analytical depth and practical engineering.
16 years of coding experience
19 years of employment as a software developer
Java Programming and Software Development, Java Programming and Software Development at JENSEN yrkeshögskolaTheoretical and Mathematical Physics, Theoretical and Mathematical Physics at Linköping University
Stackoverflow
2,897reputation
521kreached
32answers
20questions
android
top-5%
android-emulator
top-5%
Github Skills (68)
cargo10
package-management10
c1110
c1710
vim10
javas10
webgpu10
nvim10
website-design10
windows-gui10
linux10
api10
front-end-development10
html10
rust10
Programming languages (20)
Github contributions (5)
termux/termux-tasker
Nov 2016 - Jan 2020
Termux add-on app for integration with Tasker.
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:4 releases, 24 commits, 4 PRs in 3 years 2 months
Contributions summary:Fredrik primarily focused on updating and improving the Termux add-on app for Tasker. Their contributions included fixing minor formatting issues, implementing core functionality, updating the Gradle configuration, and addressing Android O compatibility. Key changes involved modifying the `FireReceiver`, `EditConfigurationActivity` and other related classes to enable seamless integration with Tasker. These improvements enhance the app's functionality and ensure compatibility with the latest Android versions.
taskerchromebookvnc-serverandroidtermux
termux/termux-boot
Dec 2016 - Sep 2019
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:6 releases, 28 commits, 4 PRs in 2 years 9 months
Contributions summary:Fredrik primarily focused on updating and refactoring the Termux:Boot application for Android. Key contributions include refactoring the boot receiver to use JobScheduler, ensuring the app is not considered stopped by adding an Activity, updating the app icon, and updating Gradle configurations. The user also updated the app to use "termux" as a log tag, indicating an understanding of Android logging practices. These commits demonstrate a clear focus on improving the app's functionality and compatibility within the Android ecosystem.
vnc-serverohmyzshlinuxandroidprograms
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