Mattias Sandström
Kassör at Tangix Design & Development AB
Stockholm County, Sweden
Summary
👤
Senior🎓
Top SchoolMattias Sandström is a seasoned full-stack developer and founder with 11+ years of professional experience, specializing in PHP, CodeIgniter, Sencha Ext JS and AWS. He runs Tangix Design & Development AB and keeps mission-critical customer systems like the VirtualTester certification platform and the COPCALC heat-pump calculation service highly available and performant. A pragmatic engineer with deep backend chops, he contributes to the CodeIgniter4 core—improving Redis session handling, API responses and query behaviors—and maintains Swedish translations, highlighting both technical and localization expertise. His background spans hands-on IS/IT architecture and virtualization work at Micronic to hardware/software engineering, giving him rare breadth from embedded systems to cloud services. Outside of software he manages a small farm harvesting solar power and beekeeping, a testament to his operational mindset and focus on sustainable, real-world impact.
11 years of coding experience
15 years of employment as a software developer
M.Sc., M.Sc. at KTH Royal Institute of Technology
English, Swedish
Github Skills (12)
php10
internationalization10
localization10
codeigniter10
translation10
api-design9
database9
redis9
php-framework9
zend-framework9
framework79
databases9
Programming languages (13)
Github contributions (5)
codeigniter4/translations
Nov 2020 - Jan 2023
System message translations for CodeIgniter4
Role in this project:
Localization / Internationalization Specialist
Localization / Internationalization SpecialistContributions:17 commits, 23 PRs, 17 comments in 2 years 1 month
Contributions summary:Mattias primarily contributes to the CodeIgniter4 translations repository, focusing on updating and correcting language files for the Swedish (sv-SE) locale. The contributions involve adding translations for new strings, fixing typos, correcting formatting, and aligning code to ensure accuracy and consistency within the language files. The user also removed unneeded strings and updated the file structure.
translationstranslationphpcodeigniter4localization
codeigniter4/CodeIgniter4
Aug 2019 - Sep 2022
Open Source PHP Framework (originally from EllisLab)
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 reviews, 26 commits, 22 PRs in 3 years 1 month
Contributions summary:Mattias primarily contributed to improving the CodeIgniter4 framework's backend functionality and documentation. This includes updating the Redis session handler to support newer versions, adding a "No Content" response to the API, fixing an issue with `countAllResults` when using `LIMIT`, and fixing BuilderBase resetting. The user also implemented features related to passing filter arguments and updated documentation to reflect the changes.
codeigniterphpframeworkcodeigniter4php7
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