Freelancer profile translated to English.
Back to original languageAbout Nabil
Embedded systems engineer with 7 years of experience in embedded/low-level software development
I started my career by taking charge of embedded software within a startup developing a low-power connected object for collecting information on objects used in the construction sector. After that, I joined Doctolib at the end of 2020 to work on the development of a smart card reader used by practitioners in France, with, in addition to firmware, a more "high-level" dimension in the technical stack, notably integrating the Rust language.
Since 2025, I have been offering my services as an independent contractor, and I have had the opportunity to work on several projects combining Rust, C, and other low-level paradigms.
Main expertise (see exhaustive list above)
- Microcontroller development (with/without OS) in C/C++
- Software development for low layers (desktop/mobile drivers): C/C++/Rust
- Instrumentation: spectrum analyzer, signal generator, digital oscilloscope, logic analyzer
- Optimization of existing embedded systems (power consumption, performance, memory, etc.)
Why work with me?
Beyond my background, I believe the following qualities can be beneficial for our collaboration:
- A great capacity for autonomy and initiative when teams are small or non-existent
- Strong curiosity and a desire to learn and share knowledge within teams
- Good organization and the ability to adapt to clients' methodological requirements
Looking forward to discussing,
Nabil.
French
Native or bilingual
English
Native or bilingual
Spanish
Conversational
Arabic
Native or bilingual
Can work on-site
Paris (up to 30km)
Experience
- neqsysConsultantJanuary 2025 - Today (1 year and 5 months)Paris, France- Development of Rust/C FFI bindings- Rust code optimization: Identification and improvement of the execution performance of an Ethereum proving backend
- SUPINFOC/C++ TrainerEDUCATION AND E-LEARNINGMarch 2025 - April 2025 (1 month)Paris, FranceI taught C/C++ courses to first-year students at Supinfo school. During this period, I also supervised practical work sessions and served as an examiner for student presentations.
- Doctolib FranceEmbedded Software EngineerMEDICALDecember 2020 - August 2024 (3 years and 8 months)Paris, France**Context**: Collaboration within a team of 25 engineers (including 2 in embedded systems) on the development project of a smart card reader for healthcare professionals to process patient billing, from their computer (USB) or mobile phone (BLE).**Achievements**:
- Development of Rust crates for FFI access to third-party C libraries
- Development of firmware in C (FreeRTOS) for a dual-slot smart card reader
- Integration of third-party static libraries into the Rust project
- Development in Rust of an over-the-air (OTA) firmware update tool
- Development of Rust crates for the management, secure storage, and use of BLE pairing keys in mobile applications (Android: Keystore, iOS: Keychain)
- Porting the PC/SC communication protocol to BLE for mobile use: development and maintenance of Kotlin (Android) and Swift (iOS) libraries
- Development of boilerplate Java code to load the dynamic library (Rust crate) at application startup
- Use of JNI to access Java resources from Rust crates
- Setup of a test bench with over 3000 end-to-end automatic tests (including hardware) controlled by CI
- Configuration of a local agent via Github Actions for test execution on different platforms (MacOS, Windows, Android, iOS)
- Use of a Python script to orchestrate OS selection during test execution
- Occasional interventions with technical support during escalations
- Technical conferences: JUG Summercamp 2023, Devoxx FR 2024
**Environment**:Embedded systems: C, FreeRTOS, Renesas, Silicon Labs, USB, PC/SC, BLE, UARTLanguages: C, Rust, Python, Java, Kotlin, Swift, Objective-C, Bash, YAMLOthers: Jira, Confluence, Git, Github, Github Actions, ElasticSearch, Datadog
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Education
- Master of Science in Computer EngineeringEcole Nationale Supérieure d'Informatique et de Mathématiques Appliquées de Grenoble2018MSc, Major in Computer Science, Minor in Embedded Systems Engineering