
oussama hajjaj
@oussamahajjaj
Mechanical and process engineer at Omjrane Mining Company (CMO) / AYRAD Group who created a Python tool that improved predicted copper recovery to 92.8%.
What I'm looking for
At Omjrane Mining Company (CMO) / AYRAD Group, I engineered a Python decision-support tool using Random Forest and automated Design of Experiments to optimize copper flotation. It produced operational recipes with predicted recovery up to 92.8% and reduced model prediction error by 23%.
Previously, at CADFEM France, I developed more than 100 scripts to automate FEM workflows and created custom ANSYS tools. My experience also includes improving water-treatment process yield at HMI, Dislog Group, and mechanical simulation work at Alstom Transport.
Experience
Work history, roles, and key accomplishments
Metallurgy Lab Engineering Intern
Omjrane Mining Company (CMO) / AYRAD Group
Jul 2026 - Present (3 months)
Engineered a Python-based decision-support tool using Random Forest and automated Design of Experiments to optimize copper flotation processing. Delivered risk-tiered operational recipes that increased predicted recovery up to 92.8% and reduced model prediction error by 23%.
Process Engineering Intern
HMI, Dislog Group
Jul 2025 - Nov 2025 (4 months)
Diagnosed water treatment systems and monitored critical water-quality parameters. Mapped production processes using Value Stream Mapping and built preventive maintenance plans, identifying process losses estimated at 25–30% and improving overall process yield by +15%.
Simulation & ANSYS Automation Intern
CADFEM France
Feb 2023 - Aug 2023 (6 months)
Developed Python, IronPython, APDL and XML scripts to automate FEM simulation workflows and explored the PyAnsys API. Designed custom ACT tools and Wizards to simplify ANSYS usage, authoring technical documentation and user guides.
Built a 3D geometric model of a tramway axle in CATIA V5 and ran modal and dynamic analyses in ANSYS and Abaqus. Studied wheel-rail interaction and resonance phenomena, identifying critical natural frequencies and dominant vibration modes.
Education
Degrees, certifications, and relevant coursework
Université Toulouse III – Paul Sabatier
Master's, Mechanical & Energy Modeling and Simulation
2020 - 2023
Master's degree in Mechanical & Energy Modeling and Simulation from Université Toulouse III – Paul Sabatier, completed from 2020 to 2023.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Job categories
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