Abderrahim Oubidar
GraalVM Support Engineer at Oracle Labs
Casablanca Metropolitan Area Morocco
Summary
🤩
Rockstar🎓
Top SchoolAbderrahim Oubidar is a GraalVM Support Engineer with nine years of hands-on experience in Java/JEE, full-stack web development, and systems engineering, based in Casablanca. At Oracle Labs he helps enterprise customers optimize GraalVM EE, benchmarks it against HotSpot, debugs core VM issues and contributes to releases and internal cloud-native tools. He is an Oracle Certified Associate (Java SE 7) and an active contributor to the high-profile oracle/graal project, where he implemented core compiler fixes and worked on WebAssembly sign-extension and CFG tooling. Comfortable across Spring Boot, Micronaut, Node.js and MongoDB, he bridges customer needs and low-level runtime internals—a blend of production support and compiler-level development that few support engineers combine.
9 years of coding experience
2 years of employment as a software developer
Attestation d'admissibilité au concours national commun 2012, MP, 571, Attestation d'admissibilité au concours national commun 2012, MP, 571 at CPGE Reda Slaoui - AgadirDiplôme d'ingénieur d'Etat en Télécommunications et Technologies d'Information (T.T.I), IT Engineering, Diplôme d'ingénieur d'Etat en Télécommunications et Technologies d'Information (T.T.I), IT Engineering at L'Institut National des Postes et Télécommunication (INPT)
Arabic, English, French, German
Stackoverflow
401reputation
11kreached
11answers
2questions
Github Skills (16)
compiler-optimization10
javas10
compiler10
compiler-compiler10
webassembly10
graalvm10
java10
aot9
python8
bigdecimal6
graaljs6
maven6
error-handling6
compiler-errors6
locale6
Programming languages (4)
Github contributions (5)
oracle/graal
Nov 2019 - Mar 2025
GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 9 PRs, 1 branch in 5 years 4 months
Contributions summary:Abderrahim contributed to the GraalVM project by implementing and modifying core compiler features. They loaded the `DisassemblerProvider` before analysis within the substratevm project. They also addressed a service provider exception related to dumping the CFG, modifying the `mx.sdk/mx_sdk_vm_impl.py` file and `espresso/src/com.oracle.truffle.espresso/src/com/oracle/truffle/espresso/runtime/dispatch/EspressoInterop.java` . Furthermore, they worked on WebAssembly sign-extension-ops.
polyglotpythonjavascriptrubyanywhere
oubidar-Abderrahim/Koa_graphQl_Mongo
Aug 2019 - Aug 2022
A simple graphQL server in nodeJs with Koa, Mongoose.
Contributions:3 PRs, 9 pushes, 1 branch in 3 years
expressgraphql-servernodejskoagraphql
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