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Noëlie JestinNJ

Noëlie Jestin

Embedded Engineer | IoT | Linux | Real-time

€500/day
4 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Noëlie

What I do: I develop and optimize industrial and IoT embedded systems, from low-level firmware to cloud dashboards, on products in production for 7 years.

✅ Fixed-price billing possible ✅ Regular progress demos

Bonus:

✅ Accelerated development & documentation via guided AI (if authorized, cloud or local)

Key Expertise

Microcontrollers & Boards
STM32, ESP32, NXP, Microchip, Raspberry Pi, Arduino
OTA
Custom Bootloader
Manufacturer Bootloader

OS & Environments
Embedded Linux, Yocto
FreeRTOS, Bare Metal

Languages & Tools
C, C++, Python
Docker, Embedded CI/CD

Protocols & Connectivity
UART, SPI, I²C, Modbus
BLE, Wi-Fi, MQTT

IoT & Cloud
AWS IoT
Azure IoT
InfluxDB or other DB

User Interfaces
Grafana
Custom Web UI
Qt, LVGL

Types of missions
Firmware development from scratch or on existing systems
Embedded Linux porting and integration (Yocto)
End-to-end IoT solution deployment
Memory and performance optimization
Bug fixing on production systems
OTA / bootloader implementation
Test benches and embedded CI/CD
Cyber Resilience Act (C.R.A) compliance

Need reliable firmware?
Need to deploy an end-to-end IoT solution?
Need to optimize an existing embedded system?

Let's discuss!
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Indépendant
    Embedded Software Development Engineer
    INTERNET OF THINGS (IOT)
    February 2025 - Today (1 year and 4 months)
    Paris, France
    📌 New way of working

    2 complementary areas:

    - Custom service offerings
    - Missions via Freelancing platforms
    AWS IoT ESP32 STM32 Grafana Python
  • QARNOT.
    EMBEDDED SOFTWARE ENGINEER
    ENVIRONMENTAL
    January 2023 - January 2025 (2 years)
    92120, Montrouge, France
    🌱 Qarnot – Ecological high-performance computing servers

    Embedded development for digital heat recovery boiler
    - Yocto Migration & multi-board support: porting to a new Yocto distribution
    (bootloader, drivers, build system), adding a new board reference.
    - Configurable power supply management (PMBus): modular system for generic power supply configuration.
    - Configuration system via Web API: design of a simple and sustainable API, used for
    remote configuration.
    - R&D and pre-industrialization tools: redesign of the factory test bench and board reflashing tool,
    designed for non-developers.
    Linux Python REST APIs STM32 Yocto
  • SEFI (RÉSEAU DEF).
    LEAD EMBEDDED SOFTWARE ENGINEER
    PUBLIC SAFETY
    January 2022 - December 2022 (11 months)
    91300, Massy, France
    📝 Team supervision and technical leadership on fire alarm control panels
    - Code review and supervision: 4 developers (FR, DE, CN), technical validation, software quality.
    - Project planning: risk assessment, definition of critical phases, test organization.
    - Task allocation: adaptation according to profiles and aspirations (skill development for juniors, fluidity for seniors).
    - Installation on pilot site: on-site support, live resolution of a critical bug.
    Soft skills: Client-facing, team management, project management
    FreeRTOS C Specifications Embedded Systems Jenkins

Reviews

4.0

Out of 1 rating

K

Karim

Ingénieur Firmware - OTA - PomeLabs

Reviewed on 1/16/2026

Noëlie adopts an effective iterative approach, which allowed us to move in the right directions throughout the project. She quickly got up to speed with the technology and suggested relevant improvement ideas, both on technical and functional aspects. Her ability to prioritize and propose relevant alternatives allowed us to continue progressing, even when the project was constrained by unavoidable manufacturing deadlines. The deliverables provided are of high quality: well-documented, clearly explained, and perfectly compliant with our expectations for the product. I recommend Noëlie without reservation.

Recommendations

ML
JR
Marion Lok and 1 other person have recommended Noëlie

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Education

  • ENGINEERING SCHOOL
    ENIB
    2018
    Spécialité mécatronique

Certifications

Skill set

Categories