Freelancer profile translated to English.

Description

Embedded systems engineer specializing in real-time and critical development for automotive, industrial IoT, and security systems.

🎯 WHAT I BRING TO YOUR PROJECTS

I design complete embedded solutions from hardware to cloud, ensuring reliability, determinism, and optimal performance.

→ Low-level firmware development in C/C++ for microcontrollers (ESP32, STM32, Raspberry Pi)

→ Real-time systems with FreeRTOS: task management, synchronization, timing optimization

→ Automotive & IoT protocols: CAN/OBD-II, I2C, SPI, UART, LoRa, MQTT, Bluetooth

→ PCB design (Altium Designer) and hardware validation (oscilloscope, logic analyzer)

→ End-to-end IoT architecture: firmware → cloud (AWS IoT, Firebase) → mobile (Flutter)

💼 KEY EXPERIENCE

- Automotive diagnostic system: Real-time CAN/OBD-II firmware, FreeRTOS, custom PCB, Flutter mobile app

- Industrial IoT: Connected devices for construction site safety (LoRa, GPS, real-time alerts)

- Low-power systems: Energy optimization, field testing

🔧 TECHNICAL STACK

Languages: C/C++ (bare-metal), Python, Dart

RTOS: FreeRTOS, Zephyr

Hardware: ESP32, STM32, Raspberry Pi | PCB (Altium)

Tools: Git, GDB, JTAG, Oscilloscope, Logic Analyzer

Standards: ISO 26262 (in progress), DO-178C (learning)

✅ WHY CHOOSE ME

→ Rigorous: Exhaustive testing, technical documentation, maintainable code

→ Full-stack: I manage the entire chain, no need for multiple stakeholders

→ Results-oriented: On-time delivery, transparent communication

→ Adaptable: Able to integrate quickly into your teams and workflows

Open to short/long-term missions, remote or on-site.

Available immediately.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Brest (up to 50km)

Projet personnel
Embedded Systems Engineer
INTERNET OF THINGS (IOT)
January 2026 - March 2026 (2 months)
Brest, France
As part of my personal project, I designed and developed a complete embedded operating system, optimized for ESP32-S3 microcontrollers. This project demonstrates my ability to master the entire embedded software development chain, from system architecture to hardware drivers.

Objectives and challenges:
Design a high-performance software platform (**boot time < 350ms**) leveraging 8MB of PSRAM and 16MB of Flash.
Ensure system maintainability through a modular architecture.
Guarantee robust security with Over-The-Air (OTA) update mechanisms.
Technologies and skills implemented:
**Software Architecture**: Implementation of a Hardware Abstraction Layer (HAL) to ensure code scalability.
**Real-Time**: FreeRTOS kernel implementation for smooth and deterministic multitasking.
**Optimization**: Fine-grained management of memory segmentation and Flash partitions to optimize resource utilization.
Low-level development: Mastery of the C language, driver configuration (SPI, DMA, GPIO, PWM), and hardware debugging.
**CI/CD & Quality**: Implementation of rigorous version management and a professional development cycle.
Added value for your projects:
This project validates my expertise in solving complex hardware constraints. Whether you need to develop an IoT product, design a critical embedded system, or optimize your product lifecycle through OTA updates, I can assist you in building robust, maintainable, and scalable solutions.
ESP32 IoT Development Firmware Development FreeRTOS OTA
JABA SPACE
Embedded Systems Engineer
AUTOMOBILE
January 2023 - January 2025 (2 years)
Douala, Cameroon
Complete development of an embedded system for real-time vehicle diagnostics and predictive maintenance of fleets.

🔧 Technical achievements:

→ C/C++ Firmware: CAN/OBD-II communication with real-time data acquisition from engine ECUs
→ FreeRTOS: Deterministic multitasking (semaphores, mutexes, priorities) for concurrent streams
→ PCB Design: Altium Designer, component selection, schematic validation, hardware tests
→ Tests & Validation: Test specifications, Python automation scripts, logic analyzer for CAN signal validation
→ Cloud Integration: Supabase for data storage/analysis
→ Mobile Application: Flutter for real-time diagnostics visualization

💼 Business Impact:
✓ Reduced fleet downtime through predictive maintenance
✓ Complete hardware-to-cloud solution demonstrating full-stack expertise
✓ Robust system validated by exhaustive tests (stress testing, edge cases)

🛠️ Technologies: C/C++, FreeRTOS, ESP32, CAN/OBD-II, Altium Designer, Python, Flutter, Supabase, Git
C/C++ FreeRTOS Python PCB design ESP32
Projet personnel
Intelligent Parking System
INTERNET OF THINGS (IOT)
February 2025 - April 2025 (2 months)
Douala, Cameroon
🅿️ Automated parking management with real-time spot detection

→ NRF24L01 wireless communication (sensors ↔ central gateway)
→ Real-time interruption and task management (ESP32/Arduino, FreeRTOS)
→ Robustness tests: Collision handling, battery life
→ Modular architecture: Easy addition of ultrasonic sensors, cameras, payment modules

💼 Applicable: Smart cities, fleet management, commercial parking lots

🛠️ Stack: C/C++, FreeRTOS, ESP32, Arduino, NRF24L01
FreeRTOS IoT ESP32 NRF24L01 C/C++

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Master of Computer Science, Embedded Systems Software Option
University of Western Brittany (UBO)
2025
Engineering Diploma
ESPRIT: Higher School of Engineering and Technology
2023
Cycle ingénieur informatique spécialité Systèmes Embarqués

Wilfried N.

Real-Time Embedded Engineer | IoT | C/C++ | RTOS

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