I'm Karim El Yaagoubi, a Software Engineer who turns complex ideas into reliable products across Flutter, Spring Boot, C, and cloud technologies. I've shipped a production mobile app with 10,000+ downloads, served 70+ paid users, and built open-source developer tools and semantic data systems used by the community.
I'm a systems-oriented backend engineer with 3+ years of experience building high-performance mobile apps, APIs, and developer tooling.
End-to-end Semantic Web pipeline for breast cancer analytics. Designed an OWL ontology, transformed structured CSV datasets to RDF, ran advanced SPARQL queries with triplestore benchmarking, and deployed an interactive cloud dashboard for biomedical analysis.
Production-ready Flutter mobile app for editing audio metadata. Integrated a custom Flutter plugin with native Android (Java) for efficient file processing. Implemented BLoC for scalable state management.
10,000+ downloads · 70+ paid users · real revenue on Google Play.
A native RDF triplestore built in C for efficient storage and querying of semantic data. The project explores low-level systems programming and practical RDF infrastructure from the ground up.
Open-source Flutter plugin for reading and editing audio file metadata
(ID3 tags) on Android. It reads tag data from audio files and returns edited
files as raw bytes (Uint8List), giving apps full control over
where and how the resulting file is saved.
100-200 weekly downloads on pub.dev.
Flutter delivery management app integrated with a Spring Boot backend using GraphHopper for route optimization. JWT-based authentication secures communication between client and server, enabling efficient route planning.
Backend Software Engineer Intern
Engineering degree — Data Science & Cloud Computing
Technology and Industrial Science — intensive math, physics, and engineering preparation.
I'm open to engineering roles, freelance collaborations, and interesting open-source work. The fastest way to reach me is by email.