Roxane Kouamé

Embedded Systems and AI Engineer

Salaire / Taux journalier

Grenoble, France

Freelance, ouvert au CDI

Peut venir sur site

Expertises

PythonMachine Learning

Langues

AnglaisFrançais

À propos

Introduction

Embedded Systems & AI Engineer.

Liens

Expérience de travail

Data AI Specialist

RWS GroupFreelance

mai 2024 - Présent

2 ans 6 mois

Uckfield TN22, Royaume-Uni

Creation, annotation, and labeling of multimodal datasets (text, image, audio, video) for the training and benchmarking of AI models: LLM, VLM, OCR, ASR, Speech-to-Text. Participation in the RLHF (Reinforcement Learning with Human Feedback) process through comparative evaluation of model-generated outputs (preference, relevance, coherence, ethics). Performance analysis of generative and conversational models (GPT-4, Claude 3, Gemini 1.5, Llama 3, Mistral, Whisper) based on accuracy, consistency, and contextual robustness criteria.

Front-end Dev Intern

Maincare Solutions

mars 2025 - août 2025

6 mois

38330 Montbonnot-Saint-Martin, France

Contributed to the redesign of the user interface for a hospital stock management module using ASP.NET Web Forms and Bootstrap 5 to improve ergonomics, accessibility, and multi-platform compatibility. Migrated existing elements to Bootstrap 5 components and implemented flexible grids, responsive forms, and data tables with filters and pagination. Adapted the structure to ASP.NET Master Pages with server-side event handling. Added interactive features using JavaScript and jQuery (modals, alerts, dynamic notifications). Collaborated with the technical team via Git/GitLab/TortoiseSVN, participated in code reviews, and integrated changes within an Agile Scrum cycle. Authored technical documentation and user guides to facilitate future maintenance. Tools used: ASP.NET Web Forms, C#, HTML5, CSS, Bootstrap 5, JavaScript, jQuery, Git/GitLab, Visual Studio 2022, Figma, Agile Scrum methodology.

Automated Defect Detection Project on Diamond Wafers

DiamfabFreelance

janv. 2025 - mars 2025

3 mois

Saint-Martin-d'Hères, France

Designed and developed a complete image-processing pipeline for SEM images to automate diamond wafer quality inspection: acquisition, preprocessing, segmentation, and classification. Implemented and compared multiple approaches: K-Means, DBSCAN (introduced through a personal tech watch), and U-Net for fine-grained crystallographic defect segmentation. Extracted geometric features (area, circularity, mean intensity) using scikit-image and trained supervised classifiers (KNN, RandomForest) for automatic defect categorization. Built an interactive Python interface (Tkinter) to visualize, annotate, and export results as CSV reports and histograms. Optimized models and conducted multi-metric evaluations (Accuracy: 91.2%, F1-score, Recall), improving defect detection reliability and reproducibility. Tech stack: Python, OpenCV, scikit-image, scikit-learn, TensorFlow/Keras, Tkinter, NumPy, Pandas, Matplotlib.

Polytech Grenoble

janv. 2024 - janv. 2025

1 an 1 mois

Grenoble, France

Real-Time Project – Autonomous Vehicle on FreeRTOS

janv. 2024 - janv. 2025

1 an 1 mois

Grenoble, France

I collaboratively developed a real-time autonomous vehicle in C on a microcontroller, using FreeRTOS for multitasking management, process prioritization, and inter-task synchronization via queues and semaphores. The DC motor propulsion and servo steering were controlled through PWM signals calibrated with an oscilloscope, using a Proportional-Integral (PI) controller that leveraged optical sensor data to compute the vehicle’s speed and dynamically adjust the PWM. Perception relied on a linear sensor, acquired via CAN bus and processed in Python for visualization, applying double temporal integration and Gaussian filtering to extract track edges. I implemented a real-time decision-making pipeline in C to interpret the vehicle’s position (straight line, left/right turn) and adjust steering via Steering_UpdatePwm_Relative. System performance was validated through real-time profiling using GPIO, oscilloscope, and logic analyzer, ensuring minimal latency, jitter reduction, and optimal stability for autonomous navigation.

Machine Learning Projects

sept. 2024 - déc. 2024

4 mois

Grenoble, France

Predictive supervised learning of EEG signals (SVM, MLP, CNN, Bayesian classifiers, decision trees, random forests) with feature extraction. Unsupervised learning for raw signal analysis (PCA, clustering). Achieved over 80% performance, evaluated using confusion matrix (accuracy) and ROC curve.

Systems Engineer Intern

STMicroelectronics

juin 2023 - août 2023

3 mois

38920 Crolles, France

During my internship at STMicroelectronics in Crolles, I worked on two key projects. The first project involved creating an interactive 3D model for the company's process academy. I used 3D modeling software such as SolidWorks to design semiconductor production equipment. I also integrated interactive elements into the model and conducted tests to validate its functionality. The second project focused on embedded programming, where I developed software for serial communication between a Micro Tool and a modern PC, using technologies such as Python, C/C++, Access Port, PyQt5, and openpyxl. These experiences allowed me to gain strong technical skills and work with cutting-edge technologies in the semiconductor industry.

Polytech Grenoble

sept. 2021 - mai 2023

1 an 9 mois

Grenoble, France

Network Server Project

janv. 2023 - mai 2023

5 mois

Grenoble, France

The project aimed to create a communication system for collecting position data from robots equipped with Raspberry Pi, objects, and opponents on the field. Information was sent from a supervisor to the robots upon request using a defined format. The goal was also to enable the robots to move according to commands from a computer connected to the local Wi-Fi network to avoid calculation and positioning errors. This embedded software will enhance the accuracy and dynamics of the robots during the Coupe de France de Robotique (French Robotics Competition).

Instrumented Beehive

sept. 2021 - mai 2023

1 an 9 mois

Grenoble, France

The prototype of an instrumented beehive consists of several elements: a wooden beehive equipped with sensors for temperature, pressure, humidity, weight, and sound; a steel frame to support the beehive and force sensors; an STM32 microcontroller to collect, process, and transmit data via a LoRa communication card to a server; and a self-contained power system with a solar panel and an energy conversion chain for 100% autonomy.

Embedded Systems Project

mai 2022 - janv. 2023

9 mois

Grenoble, France

Using sensors and a microcontroller, I completed a project to develop a light-sensitive robot, followed by another project involving the modeling of a bubble level and a protractor.

"Jungle Chess" Project

avr. 2022 - juil. 2022

4 mois

Grenoble, France

As part of this project, I actively contributed to the development of a Chinese strategy animal combat game software. Using Python and the Pygame module, I participated in various aspects of the game, including the user interface, game board, game rules, and piece management. I also collaborated with the team to address technical challenges related to implementing a local multiplayer feature, utilizing libraries such as network and socket. Throughout the project, I had the opportunity to further enhance my skills in object-oriented programming, software project management, and teamwork.

Stagiaire

SCO Afrique

mai 2021 - juil. 2021

3 mois

Man, Côte d'Ivoire

Observation internship during which I acquired knowledge of 3D design and modeling software such as Autodesk Revit, AutoCAD, Robot, Inventor, and SolidWorks.


Formation

Polytech Grenoble

Master Degree in Engineering

2021 - 2025

4 ans 2 mois

Lycée Français Blaise Pascal d'Abidjan

Preparatory Classes for Engineering Grandes Écoles

2019 - 2021

1 an 11 mois

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