Job Title: Structural BIM Modeler
Company: UNIMAC
Project: Qiddiya, Saudi Arabia
Location: Saudi Arabia
Employment Type: Full-Time
Availability: Immediately (Only)
UNIMAC is seeking an experienced and technically proficient Structural BIM Modeler to join its Digital Delivery / BIM team for Qiddiya project.
The successful candidate will be responsible for developing, coordinating, and managing high-quality structural BIM models, ensuring compliance with project requirements, BIM standards, and digital delivery procedures. The role requires strong expertise in structural modelling, infrastructure coordination, as-built documentation, and BIM automation.
Key Responsibilities
- Develop and maintain detailed 3D structural BIM models using Autodesk Revit, covering foundations, columns, beams, slabs, retaining walls, and other structural elements.
- Prepare structural shop drawings, sections, details, reinforcement models, and quantity schedules.
- Deliver LOD 500 as-built models incorporating verified site measurements, survey data, redline drawings, and actual construction conditions.
- Perform multidisciplinary BIM coordination and clash detection with architectural, civil, MEP, and other engineering disciplines.
- Develop and manage parametric Revit families, shared parameters, templates, and project-specific modelling standards.
- Develop and implement Dynamo scripts to automate modelling activities, data extraction, quantity take-offs, and quality control processes.
- Utilize Autodesk Civil 3D for infrastructure modelling, data shortcuts, pipe networks, and customized parts catalogues.
- Support asset information management, Asset Register development, and COBie data preparation for project handover.
- Ensure compliance with BIM Execution Plans (BEP), ISO 19650 standards, LOD/LOIN requirements, and client information delivery specifications.
- Coordinate with engineering, construction, and project teams to ensure accurate and timely BIM deliverables.
Qualifications & Experience
- Bachelor's degree or Diploma in Civil Engineering, Structural Engineering, or a relevant technical discipline.
- 5–8 years of relevant experience in Structural BIM Modelling.
- Minimum 3 years of experience working on infrastructure projects, particularly bridges, retaining structures, underpasses, or large-scale construction developments.
- Proven experience in developing structural BIM models and delivering LOD 500 as-built documentation.
- Strong practical knowledge of structural reinforcement modelling, detailing, and quantity extraction.
- Previous experience in multidisciplinary BIM coordination and construction documentation.
Technical Skills & Software Requirements
Candidates must demonstrate strong hands-on experience with the following:
- Autodesk Revit Structure – Advanced / Expert.
- Dynamo for Revit – Advanced modelling automation and scripting.
- Autodesk Civil 3D – Infrastructure modelling and data management.
- Autodesk Navisworks – Model federation and clash detection.
- Autodesk Inventor – Custom component and parts development.
- Autodesk Construction Cloud (ACC) / Aconex – BIM collaboration and document management.
- Knowledge of ISO 19650, BEP, EIR, AIR, COBie, and Asset Register requirements.
Preferred Qualifications
- Previous experience with major infrastructure projects or Saudi Arabia's giga-projects, such as Qiddiya, NEOM, Red Sea Global, Diriyah, or ROSHN.
- Autodesk professional certification in Revit or Civil 3D.
- Experience in laser scanning, point cloud data, and survey-based as-built modelling.
- Knowledge of Python/CPython3 and advanced BIM automation techniques.
- Experience with LOD 500 model delivery and asset information handover.
