Freelancer profile translated to English.
Back to original languageAbout Elmehdi
Embedded software engineer with5 years of experiencein critical environments - aeronautics, space, and rail. I design and develop robust embedded systems inC/C++on **Linux**, with strong expertise in real-time, CI/CD, and continuous integration.
I worked for Airbus and Airbus Defence & Space on high-criticality systems **(DO-178, MISRA-C)**, and I am currently contributing to a rail project at Actia (Tisséo): NVR redundancy, high network availability (VRRP), industrial protocols, and embedded REST interfaces.
I am involved in the entire cycle: specification, design, development, testing, and delivery. Autonomous, rigorous, and accustomed to Agile and standardized environments, I bring real added value from the first day of the mission.
English
Native or bilingual
Can work on-site
Toulouse (up to 50km)
Experience
- Actia RailwayEmbedded Software EngineerTRANSPORTATIONSeptember 2025 - Today (11 months)Toulouse, France
- Embedded software development in C under Linux for the Tisséo project, on the control application for a rail video NVR.
- Design and integration of NVR redundancy with state exchanges between equipment, remote NVR monitoring, and master/slave switchover mechanisms management.
- Implementation and evolution of network high availability via VRRP, managing the active/standby NVR role, VRRP score, and camera control by the master NVR.
- Development of embedded web interfaces (CGI) and REST API components for operation and administration: status visualization, configuration, monitoring, alarms, storage, timeline, and software updates.
- Evolution of network communications and industrial protocols: IP/hostname management, DNS, syslog, CIP, diagnostics, Tisséo business statuses, and product configuration.
- Evolution of video and camera management with the integration of H265 codec support for streams broadcast via RTSP
Tech: Linux, Yocto, VRRP, XML, JSON, syslog, CI/CD, Gitlab, CppCheck, Doxygen. - Airbus Defence & Space via CS GroupEmbedded Systems EngineerAVIATION AND AEROSPACENovember 2023 - September 2025 (1 year and 10 months)Toulouse, France
- Participation in the V-model cycle (specification, design, code, tests).
- Development in C (MISRA-C 2004), Python, and Bash.
- Design and implementation of purge, upgrade, and memory management functions.
- Development of security mechanisms: HMAC, ECDSA, chain of trust.
- Configuration and operation of Linux services: Syslog, SNMP.
- Configuration management: Git, SVN. Work in a DO-178 certified environment.
Tech: C, Python, Bash, Jenkins, Git, SVN, Robot Framework, Syslog, SNMP, DO-178 - Airbus via AUSYEmbedded Systems EngineerAVIATION AND AEROSPACEOctober 2021 - November 2023 (2 years and 1 month)Toulouse, France
- Development of new Simugene features (virtualization of PowerPC-based aircraft computers).
- Emulation of peripherals, bug fixing on existing components. Improvement of avionics simulators (ARINC 739 and ABD protocols).
- Integration testing and development of test libraries with Robot Framework.
Tech: C++ 17, Python, Jenkins, Agile, Git, Jira, Robot Framework
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Education
- Master 2Université Paul Sabatier2021Master 2
- EngineerNational School of Applied Sciences2020Ingénieur