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Hans NgassaHN

Hans Ngassa

Supermalter

BIM Coordinator & MEP Modeler (HVAC / Plumbing)

€400/day
34 projects
Cergy, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hans

Need a trustworthy model? I ensure the technical data of your BIM models is reliable. I help MEP design offices, engineering firms, and installation companies transform complex files into precise, usable, and compliant Revit deliverables.

🚀 My Key Expertise

BIM Coordinator & MEP Modeler (HVAC, Plumbing, Electrical): High-precision Revit modeling (LOD 300 to 400) for your construction drawings. Configuration, routing, and sizing of HVAC, sanitary plumbing, electrical (power/low voltage), and ductwork networks.

MEP Scan-to-BIM Expertise: Processing of 3D point clouds and technical modeling of the as-built condition to secure your fluid and HVAC renovation projects.

MEP Synthesis & Fluid Coordination: Clash Detection in Navisworks Manage, interdisciplinary synthesis management, and resolution of complex technical nodes.

Digital As-Built Documentation & 4D Phasing: Finalization of digital As-Built Documentation (DOE) compliant with technical requirements for operation and maintenance (CMMS). Linking to execution schedules via Navisworks.

Quality Control & Model Audit: Cleaning of Revit MEP templates, correction of shared parameters, and strict compliance of fluid networks.

📐 My Field Methodology (Execution-Oriented)

Analysis: Critical analysis of existing conditions, design office models, and rigorous verification of MEP input data.

Revit MEP Production: Structured modeling, quantity take-offs, fluid/electrical quantities, and automatic, site-oriented schedules.

Delivery: Provision of a clean model and immediately usable IFC export for execution.

đŸ’Œ References: RATP (BIM MEP Coordination / Revit Networks), SNEF, AMICA, Widdim, Afpa.

Available to analyze your modeling and synthesis needs. Let's discuss your project via Malt messaging.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Cergy (up to 20km)

Experience

  • Groupe RATP
    RATP Infrastructure – BIM MEP Coordinator (Revit)
    TRANSPORTATION
    December 2023 - February 2026 (2 years and 2 months)
    Fond-de-Val, France
    Technical coordination and validation of BIM models for RATP infrastructure. Guarantee of the technical compliance of final MEP deliverables according to network operation requirements.

    🎯 BIM Coordination & MEP Synthesis

    Cross-functional Synthesis: Interdisciplinary technical coordination of various fluid lots (HVAC, plumbing, ductwork) and electrical.

    Discrepancy Management: Clash detection, writing of clash reports, and monitoring of corrections for models produced by contractors.

    Standards Application: Verification of strict adherence to the RATP BIM Convention (schedules, coding, network data structure).

    🔧 Revit MEP Modeling & As-Built Documentation (DOE)

    Technical Update: High-precision Revit MEP modeling (LOD 300 to 400) to accurately reflect the "as-built" condition for HVAC, plumbing, and electrical (power/low voltage) lots.

    Data Validation: Correction of geometric and semantic inconsistencies (LOI) to eliminate modeling errors.

    Maintenance Deliverables (GEM): Preparation of structured digital models to ensure smooth transition to CMMS and operations.
    BIM Synthesis REVIT MEP HVAC BIM Modeler BIM Coordinator
  • Graphland
    Revit MEP Trainer | HVAC, Electrical Modeling & Synthesis
    EDUCATION AND E-LEARNING
    February 2023 - Today (3 years and 5 months)
    Paris, France
    Instructional design and delivery of advanced professional training on Revit MEP for fluid design offices and HVAC/Electrical installation companies.

    🚀 Taught Professional Expertise

    Revit MEP Support: Training in complete configuration of fluid and electrical projects, creation of parametric MEP families, and management of shared parameters.

    HVAC, Plumbing & Electrical Modeling: Leading practical workshops focused on precise routing, sizing, and positioning of ductwork and hydraulic networks (LOD 300 to 400).

    MEP Processes & Synthesis: Teaching technical coordination protocols, clash detection in Navisworks Manage, and interdisciplinary synthesis methodology.

    Construction Drawings & Schedules: Automation of site deliverable production (fluid quantities, schedules) and IFC export configuration for collaborative BIM.

    đŸ’» Technical Environment: Revit MEP, Navisworks Manage
    BIM Modeler HVAC Hydraulic Modeling Revit MEP Navisworks Manage
  • Seb consulting
    BIM Revit MEP Trainer | HVAC, Plumbing, Electrical
    EDUCATION AND E-LEARNING
    May 2023 - August 2023 (3 months)
    Ris-Orangis, France
    Training design and delivery of a tailor-made technical curriculum aimed at developing the operational skills of technicians and engineers in Revit MEP (HVAC, Fluids, Electrical).

    🎯 Transmitted Professional Skills

    Configuration & Templates: Revit MEP project setup, creation of parametric MEP families, and structuring of software hierarchies.

    Trade Modeling (LOD 300 to 400): Precise routing, connections, and sizing of HVAC, sanitary plumbing, and electrical (power/low voltage) networks.

    MEP Synthesis & Coordination: Model geometric verification process, introduction to clash detection, and application of a BIM convention.

    Construction Drawings & Deliverables: Automatic generation of schedules, quantity take-offs for fluids/electrical, and production of construction drawings directly usable on site. IFC format export configuration.

    đŸ’» Technical Environment: Revit MEP, Navisworks Manage.
    REVIT MEP Construction Drawings Navisworks Manage BIM Modeler HVAC

Reviews

5.0

Out of 12 ratings

L

Laurent

Geexeo

Reviewed on 2/2/2024

Very good communication with Hans, available and attentive. Technical quality at the right level. I will use his services again.
L

Laurent

Geexeo

Reviewed on 4/15/2024

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Education

  • Professional Title BIM Building Coordinator
    Arsenio
    2024
    Expertise certifiée RNCP (Niveau 6) : Coordinateur BIM du bùtiment (RNCP34280). Cursus intensif de 560 heures axé sur l'ingénierie et la convergence des maquettes numériques. Management & Processus Collaboratifs : Rédaction et pilotage de conventions BIM, gestion des plateformes collaboratives (BIM 360 / Autodesk Construction Cloud). Modélisation & SynthÚse MEP : Modélisation experte sous Revit MEP (LOD 300 à 400), création de familles paramétriques complexes. Clash Detection & Coordination : Pilotage de revues de projet interdisciplinaires, détection fine et résolution des conflits géométriques entre les lots fluides (CVC Plomberie), électricité et structure via Navisworks Manage. Outils maßtrisés : Revit MEP, Navisworks Manage, BIM 360, formats IFC & DWG.
  • AutoCAD from A to Z and Revit
    Sylvan la rochelle
    2021
    Formation intensive axĂ©e sur la production de maquettes numĂ©riques fiables et la rigueur technique requise pour les livrables des phases de synthĂšse et d'exĂ©cution. Production AutoCAD & Revit MEP : CrĂ©ation de gabarits structurĂ©s, routage de gaines, modĂ©lisation CVC plomberie et Ă©lectricitĂ© pour la production de plans de rĂ©seaux fluides. Extraction de DonnĂ©es & MĂ©trĂ©s : MaĂźtrise des nomenclatures Revit pour l'extraction automatique de quantitatifs prĂ©cis et mĂ©trĂ©s de rĂ©seaux nĂ©cessaires Ă  la coordination. InteropĂ©rabilitĂ© : Gestion des flux d'Ă©changes (liens DWG / IFC) pour valider les nƓuds techniques et livrer des maquettes prĂȘtes pour l'exĂ©cution chantier.

Certifications

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