CAD Designer – Mechanical Piping

Interstate Mechanical, LLC — IMCOR — is seeking a skilled CAD Designer to join our Operations/BIM team. IMCOR offers a challenging and team-oriented work environment focused on quality, safety, coordination, and successful project execution.

We are looking for a detail-oriented designer with strong mechanical piping and plumbing system experience who can support project teams through accurate drawings, coordination, clash detection, and fabrication-ready deliverables.

The CAD Designer is responsible for producing, coordinating, and maintaining detailed mechanical piping system drawings using AutoCAD Fabrication MEP, Revit, Navisworks, and related design/coordination software.

This role works closely with project managers, engineers, BIM leadership, vendors, and field teams to ensure designs are accurate, fully coordinated, code-compliant, and aligned with project specifications. The CAD Designer plays a key role in supporting constructability, coordination, fabrication, and efficient system routing.

• Develop and modify detailed mechanical piping system drawings using AutoCAD Fabrication MEP, Revit, and Navisworks.
• Detail piping systems for coordination, fabrication, and project execution.
• Design and coordinate mechanical piping systems, including chilled water lines, hot water heating lines, equipment connections, and related layouts.
• Produce isometric spool drawings for fabrication and project coordination.
• Review project specifications, contract plans, scopes of work, and submittals to ensure compliance with project requirements.
• Coordinate system routing, equipment layouts, material requirements, fixture schedules, and specification checklists.
• Confirm DX — Direct Expansion — line sizes and lengths with vendors to support proper equipment performance and compliance with manufacturer requirements.
• Create floor sleeve and wall penetration coordination drawings with required dimensions and elevations.
• Conduct site visits as needed to verify field conditions, review installation coordination, and identify cost‑saving or constructability opportunities.
• Generate RFIs with clear descriptions of conflicts and suggested resolutions for project managers.
• Participate in BIM coordination meetings and collaborate with other trades to resolve conflicts.
• Conduct quality control checks on drawings to confirm accuracy, contract compliance, and efficient system routing.
• Assist in preparing CAD shop drawings, field turnover packages, access panel verifications, fixture schedules, and other project documentation.
• Use Bluebeam Revu for document markup and collaboration.
• Use Procore for project documentation, RFI tracking, and coordination.
• Maintain strong professional relationships with general contractors, engineers, clients, vendors, project teams, and field teams.
• Attend internal and external project coordination meetings as required.

• Minimum 5+ years of experience detailing mechanical piping systems.
• Experience with mechanical piping systems, or MEP design/detailing.
• Strong understanding of piping layouts, blueprints, contract documents, and construction coordination.
• Hands‑on experience with AutoCAD Fabrication MEP, Revit, and Navisworks.
• Experience working in a BIM coordination environment and collaborating with multiple trades.
• Ability to identify design conflicts and propose practical resolutions.
• Ability to work independently, manage deadlines, and maintain accuracy with minimal supervision.

• AutoCAD Fabrication MEP — modeling and detailing mechanical piping and plumbing systems.
• Revit — BIM modeling and coordination.
• Navisworks — clash detection and coordination reviews.
• Bluebeam Revu — document markup and collaboration.
• Procore — project management, RFI tracking, and documentation.

• Strong proficiency in AutoCAD Fabrication MEP, Revit, and Navisworks.
• Solid understanding of mechanical piping systems, blueprints, and contract documents.
• Excellent organizational skills and attention to detail.
• Strong verbal and written communication skills.
• Proactive problem‑solving mindset.
• Ability to work in a team‑oriented environment.
• Ability to coordinate…