
Roxane Kouamé
Embedded Systems and AI Engineer
Salaire / Taux journalier
Grenoble, France
Freelance, ouvert au CDI
Peut venir sur site
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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