BIM Modeler

About UNIMAC

UNIMAC - United Maintenance and Contracting Company is a leading construction and infrastructure contractor based in Riyadh, Saudi Arabia. The company specializes in roads, highways, civil engineering, and large-scale infrastructure development. UNIMAC has extensive experience delivering complex projects across the Kingdom, supporting Saudi Arabia's infrastructure development and Vision 2030 objectives.

The Role of BIM Modeler

UNIMAC is seeking experienced BIM Modelers to join its Digital Delivery team in Riyadh, Saudi Arabia. This full-time role supports one of Saudi Arabia's major infrastructure projects, requiring professionals across multiple engineering disciplines. We are hiring for Electrical BIM Modelers, Mechanical BIM Modelers, and Roads BIM Modelers.

Key Responsibilities

• Develop and maintain accurate 3D BIM models specific to the assigned discipline.
• Produce coordinated construction drawings and LOD 500 as-built models.
• Coordinate with engineering teams to identify and resolve clashes.
• Develop BIM families, components, and automated workflows using Dynamo.
• Support asset information management, COBie documentation, and project handover processes.
• Ensure compliance with project BIM standards, BIM Execution Plan (BEP), and ISO 19650.

Discipline-Specific Focus

• Electrical BIM Modeler: Focus on lighting, LV networks, electrical infrastructure, and telecommunications.
• Mechanical BIM Modeler: Focus on wet utilities, irrigation, drainage, mechanical piping, and HVAC systems.
• Roads BIM Modeler: Focus on road corridors, alignments, grading, earthworks, drainage, and civil infrastructure.

Qualifications and Requirements

• Diploma or Bachelor's degree in Engineering or a related technical discipline.
• Minimum of 5 years of BIM modeling experience, with a preference for infrastructure projects.
• Strong proficiency in Autodesk Revit, Civil 3D, and Dynamo.
• Practical experience in LOD 500 / as-built modeling and multidisciplinary coordination.
• Knowledge of Navisworks, clash detection, and BIM standards.
• Familiarity with BIM asset data and COBie handover requirements.
• Previous experience on Saudi giga-projects is considered an advantage.