Freelancer profile translated to English.
Back to original languageAbout Nadir
HVAC CAD designer and BIM modeler, I work on the design and 2D/3D modeling of heating, ventilation, and air conditioning systems for engineering firms, thermal engineers, and construction companies. Through my projects in Luxembourg and France, I have developed solid expertise in CAD/DAO and the sector's technical standards.
🎯 What I do:
- HVAC/HVAC 3D modeling on Revit and Microstation
- Creation of precise 2D drawings in AutoCAD
- Technical sizing, CH/VEN diagrams, compliance checks
- Energy optimization and improvement proposals (e.g., €20k cost reduction on a client project)
- Coordination with engineering firms, project managers, and thermal engineers
💼 Key Experiences:
- Felgen & Associés Engineering (Luxembourg): HVAC 3D modeling on Revit, technical diagrams, participation in complex engineering projects.
- Roger Duhr Sàrl (Rodange): Complete design of HVAC systems, optimization of technical and economic solutions.
- ITG employment sponsorship: Creation of HVAC drawings for various clients, complete project management from needs analysis to delivery.
🛠 Technical Skills:
- Revit • Microstation • AutoCAD • Drawing interpretation • HVAC modeling • Technical standards • Calculations & sizing
- Fluent English (C1) – ideal for international projects
- Available for work in Luxembourg and Grand Est
🧩 My Approach:
Rigour, precision, and autonomy are central to my work. I integrate easily into project teams and ensure that deliverables are clean, compliant, usable, and delivered on time.
📌 Immediately available for assignments in:
- HVAC design / modeling
- HVAC BIM
- Engineering firm support
- Short or long-term projects
French
Native or bilingual
English
Fluent
Can work on-site
Metz (up to 50km)
Experience
- Felgen & Associés Engineering SABIM Modeler HVAC (Permanent Contract)CIVIL ENGINEERINGSeptember 2025 - December 2025 (3 months)Luxembourg3D Modeling using Revit
- Development and creation of complete 3D models for heating, air conditioning, ventilation, and hydraulic systems.
- Integration of technical equipment (AHUs, indoor/outdoor units, pumps, heat exchangers, air and hydraulic networks) while respecting architectural and structural constraints.
- BIM coordination with other trades (architecture, structure, electrical, plumbing) to ensure spatial consistency of installations and anticipate conflicts (clash detection).
- Application of project BIM standards, templates, and guidelines to ensure modeling complies with technical requirements and expected Levels of Detail (LOD).
- Updating and revising models based on project evolution, feedback from the engineering department, or site constraints.
Creation of 2D diagrams and technical drawings using MicroStation- Production of heating, air conditioning, and ventilation (HVAC) schematic diagrams to clearly represent network architecture and operating logic.
- Creation of detailed 2D drawings: layout plans, opening plans, schematics, sections, and technical diagrams.
- Adherence to graphic standards, drawing conventions, and documentation requirements of clients and engineering firms.
- Verification of consistency between created diagrams and BIM models to ensure perfect correspondence between technical documents and the digital model.
Overall contribution to the BIM process- Participation in BIM and technical meetings, regular exchanges with HVAC engineers and BIM coordinators.
- Management and organization of data associated with model components (parameters, families, schedules).
- Technical support in the use of BIM tools for the project team when necessary.
- ITGHVAC CAD Designer (Permanent Contract)CIVIL ENGINEERINGSeptember 2020 - June 2023 (2 years and 9 months)Longwy, FranceITG – Employment Sponsorship
- Creation of HVAC (heating, ventilation, air conditioning) drawings in 2D/3D for various clients.
- Modeling, sizing, and compliance with technical standards.
- Collaboration with engineering firms, thermal engineers, and project managers.
- Complete management of assignments: needs analysis, costing, deliverables, and client follow-up.
- Activity carried out under ITG employment sponsorship (employee status, freelance assignments).
- Etablissements Roger Duhr SàrlHVAC CAD DesignerCIVIL ENGINEERINGFebruary 2020 - April 2020 (2 months)Rodange, LuxembourgDesign and drafting of HVAC systems using AutoCAD
- Creation of layout plans for heating, ventilation, and air conditioning networks, considering building technical constraints and client requirements.
- Basic sizing of networks (sections, flow rates, pressure drops) in support of HVAC technicians and engineers.
- Updating and optimizing existing plans to improve energy performance and simplify on-site execution.
- Participation in the creation of schematic diagrams and technical details for HVAC installations (boilers, pumps, radiators, AHUs, fans, etc.).
Contribution to the project's energy and economic optimization- Analysis of possible technical solutions and proposal of alternatives to reduce energy consumption.
- Integration of more efficient designs that led to savings of approximately €20k in project energy costs.
- Close collaboration with site teams and the engineering department to refine technical choices and validate selected solutions.
Participation in the overall design and execution process- Regular exchanges with account managers, technicians, and installers to verify the feasibility and compliance of plans.
- Occasional site monitoring to understand field constraints and adapt plans accordingly.
- Compliance with current HVAC standards and regulations (sizing, safety, accessibility, ventilation).
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Education
- Professional Bachelor's Degree LP CT (Technology Commercialization)2025Licence pro LP CT (commercialisation de technologies)
- DUT in Thermal Engineering and EnergyIUT Henri Poincaré de Longwy2020Le DUT GTE forme en deux ans des techniciens supérieurs capables de concevoir, optimiser et exploiter des installations énergétiques dans le bâtiment et l’industrie. Le diplômé maîtrise l’efficacité énergétique, les énergies renouvelables, le génie climatique et frigorifique. Il accompagne entreprises et clients dans la mise en place de solutions économes en énergie et à faible impact environnemental, et joue un rôle clé dans la transition énergétique.