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My Resume

Passionate about low-level development and integration, I work across the entire embedded Linux stack:

  • Application development: bootloader (U-Boot), kernel, init, daemons.
  • Porting and integration: toolchains, development environments, BSPs, custom Linux systems.
  • Embedded platform optimization: boot time (U-Boot, kernel, init), memory footprint.

My versatility allows me to work across all software layers, while focusing on issues close to the hardware. I can also work on the lower layers of Android (kernel, init, daemons, bootloader).

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Detailed Professional Experience

Embedded Linux Engineer

Wizzilab — Montrouge, France April 2026 — Present

  • Wizzilab gateway production: took over, simplified and enhanced programming tools. Set up a dedicated machine and trained engineers in the automated production process. This covers programming blank SoCs, registering gateways on servers, pre- and post-production testing and validation, and preparation for delivery.
  • Maintained the gateways’ Yocto distribution on the Variscite platform: maintained the meta-variscite layers and the platform-specific u-boot-imx bootloader.
  • Debugged and fixed boot bugs and crashes occurring after OTA upgrade updates.
  • Fixed various bugs through to product stabilization.

🛠 Technical environment: C, shells (sh/bash), Ruby, Lua, Yocto, U-Boot, embedded Linux, Variscite, i.MX6UL, DASH7.

Embedded Linux Engineer

ACKSYS Communications & Systems — Yvelines, France November 2021 — April 2026

Developed, enhanced and maintained WaveOS, an embedded Linux system based on OpenWrt, working across the entire software stack, from the u-Boot bootloader and device tree through the kernel to services and embedded applications.

  • Wi-Fi and roaming:
    • Ported the roaming strategy to OpenWrt 24 / Linux 6.6, adapting the entire Wi-Fi stack (iw, iwinfo, hostapd, wpa_supplicant, mac80211, ath11k).
    • Debugged and performed in-depth analysis of the ath11k driver (Copy Engine, WMI, MAC, Data Path) and the mac80211 layer. Made changes that reduced roaming time from 1 s to approximately 150 ms.
    • Analyzed and validated Qualcomm firmware after modifications by a subcontractor. Set up a dedicated test station and used Wireshark to analyze powersave frames and various ath11k parameters affecting the behavior of beacon, idle, scan, etc.
    • Identified bugs in proprietary Qualcomm firmware affecting roaming and VLAN frame handling. Reported the issue to the mainline project.
  • Predictive roaming:
    • Developed features for ACKSYS and ATOS/NOKIA projects and modified the predictive roaming algorithm to improve air-to-ground communication throughput.
  • Userspace development:
    • Developed surveyd, a monitoring daemon to detect and handle Wi-Fi link losses.
    • Enhanced and maintained init services, net-snmp, hostapd, supplicant, telemetry, monitoring (collectd), and the OTA update system.
  • Bootloader and system reliability:
    • Developed a dual-boot mechanism in u-Boot, supporting booting from multiple partitions and recovery after a crash or corruption.
    • Developed the GUI page used to program WaveOS and U-Boot with Flasher and switch between partitions.
    • Managed system configurations across partitions.
    • Set up a programming station for blank or corrupted SoCs using Qualcomm’s sahara tool.
  • Embedded web interface:
    • Designed and implemented a new WebUI for ACKSYS routers, migrating from Lua to a fully JavaScript-based architecture.
    • Rewrote dozens of ACKSYS service configuration pages in JavaScript.
  • Embedded Linux:
    • Performed board bring-up for the ACKSYS AirWave series: device tree, U-Boot, kernel, GUI.
    • Measured and improved boot time and memory footprint for the ACKSYS AirBox series.
    • Modified the GPY215 PHY driver on RailBox to handle autonegotiation.
    • Integrated and modified the DS2411 driver for serial number management.
    • Modified drivers for LEDs, GPIO, athxk and Ethernet PHYs.
    • Developed features and debugged and maintained functionality and services across WaveOS, including ubus, collectd, net-snmp, VLAN bridging, init, wpa_supplicant and hostapd.
  • AirWave series security assessment:
    • Analyzed security gaps in ACKSYS products, particularly the lack of Secure Boot.
    • Assessed hardware and software security solutions: Secure Boot, TPM and ARM TrustZone.
    • Conducted in-depth technical research, gathered information from suppliers and compared costs.
    • Formalized requirements and wrote a technical specification, which was presented at a meeting for evaluation.

🛠 Technical environment: C, shells (sh/bash), Python, Lua, JavaScript, U-Boot, kernel, mac80211, ath11k, Wi-Fi, TCP/IP, embedded Linux, Secure Boot, TPM, IPQ6010, Qualcomm, NAND/NOR, UBI, MTD.

Intern — Linux Driver Developer

Tiempo Secure — Grenoble, France February 2021 — July 2021

1. MTD driver for S25FL Flash memory and block driver for MMC

  • Implemented the basic driver structure on the TIEMPO Secure Enclave.
  • Used the UBI API (UBI File System) for wear leveling and garbage collection.

2. Platform driver for TIEMPO IPC (FPGA Inter-Processor Communication)

  • Defined the driver’s technical specifications.
  • Analyzed and validated the IP in bare-metal mode before developing the driver.
  • Developed the Linux platform driver: Device Tree, interrupt handling, probe function, character-device interface and mailbox management.
  • Created a userspace test tool.
  • Integrated the driver into Buildroot.

🛠 Technical environment: C, assembly, shells (sh/bash), Buildroot, U-Boot, embedded Linux, FPGA, RISC-V, kernel, drivers, SPI, kgdb, NAND/NOR, UBI, MTD.

Final-Year Project

Grenoble University Space Center — Grenoble, France November 2020 — February 2021

Developed a small FreeRTOS application on a MicroBlaze soft core:

  • Acquired data from FPGA memory and transmitted it using the TCP/IP stack (Lightweight TCP/IP).
  • Implemented the MicroBlaze IP hardware blocks and the software application.

🛠 Technical environment: C, Bash, FreeRTOS, TCP/IP, FPGA, Xilinx, Artix-7.

Education

Master’s Degree (Year 2) — Microelectronics, Embedded Real-Time Systems Integration

Université Grenoble Alpes September 2019 — August 2021

  • Embedded systems
  • RTOS: interrupts, scheduling, algorithms, optimization (FreeRTOS, PREEMPT-RT)
  • Modules and drivers
  • Computer architecture and execution models

Master’s Degree (Year 1) — Electronic Instrumentation

Mouloud Mammeri University of Tizi Ouzou September 2014 — August 2018

Languages

  • English, French, Arabic — fluent
  • Kabyle — native language

Skills

Embedded Linux

  • Advanced proficiency in embedded Linux, particularly Linux wireless and OpenWrt: init, configuration, partitions, upgrades.
  • Board bring-up for new boards. Excellent understanding of the MTD and UBI subsystems and NAND/NOR flash memory.
  • Toolchains, cross-compilation and Linux BSPs: crosstool-NG, Yocto, Buildroot, U-Boot.
  • Linux driver development: character, block, MTD, platform and SPI drivers.
  • Driver development for FPGA blocks (RISC-V architecture).
  • Good understanding of the TCP/IP and Wi-Fi stacks (ath11k/ath10k, mac80211, bridge, VLAN, ARP).
  • Reading datasheets and hardware schematics.

Manufacturing

  • Good knowledge of manufacturing processes in France, certifications and interactions with international customers.
  • Testing, validation and bug management in a production environment.

Programming languages

  • C, Shell, RISC-V assembly, Lua, HTML/CSS, JavaScript, Python, Ruby.

Tools

  • GNU/Linux: make, gcc, gdb, kgdb, Valgrind, ftrace.
  • Yocto, Buildroot, crosstool-NG, git, quilt, Redmine, Vim.
  • Wireshark, tcpdump, iperf.

Protocols

  • Wi-Fi, TCP/IP, UART, I2C, SPI, USB, RS-232.
  • Good understanding of the OSI model and the Wi-Fi stack.

Projects and Open-Source Contributions

  • Participation in the French Robotics Cup — May 2021 Theme: Sail the World (Grenoble)

  • Open-source contributions and events Participation in events and conferences on embedded systems and free/open-source software: Paris Embedded, FOSDEM, Hack in Paris, SysDream

Other

Hobbies

  • Motorsport, sim racing
  • Photography: click here
  • Video game analysis
  • Retro computing and retrogaming
  • 3D
  • Member of the MO5 Association
  • Mindfulness meditation, Japanese culture, travel (🇯🇵 🇫🇷 🇭🇺 🇦🇹 🇩🇪 🇧🇪 🇵🇹 🇪🇸 🇨🇭)
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