Civil 3D Designer – Infrastructure & Grading (Hybrid)

Mott MacDonald; The Woodlands (TX); Hybrid; USD 84,000 - 103,000; Full time

Benefits offered by this job

401k

Medical, dental and vision insurance

Paid holidays / PTO

Job summary

Mott MacDonald is seeking a Civil 3D Designer to join our North American team. You will develop detailed civil drawings for grading, drainage, utilities, and roadways, collaborating with engineers and project managers to produce accurate, buildable plans.

The role emphasizes quality, standards compliance, and 3D modeling, with a hybrid in-office schedule and a competitive benefits package. Candidates should have 5+ years of AutoCAD Civil 3D experience and a background in site development or

Qualifications

• Minimum 5 years of experience preparing civil engineering designs and construction drawings.
• Advanced proficiency with AutoCAD Civil 3D.
• Experience developing grading, drainage, utility, roadway, or site development plans.
• Strong understanding of civil engineering design standards.

Responsibilities

• Develop and refine detailed civil engineering drawings using AutoCAD Civil 3D for grading, drainage, utilities, and roadway design.
• Collaborate closely with engineers and project managers to translate concepts into accurate, constructible plans.
• Create 3D surface models, alignments, profiles, corridors, and cross-sections for a variety of infrastructure projects.
• Prepare plan sets, quantity calculations, and construction documentation.
• Ensure all designs meet applicable codes, standards, client requirements, and quality expectations.
• Participate in design reviews and provide innovative solutions to technical challenges.
• Coordinate with multidisciplinary teams to support integrated project delivery.
• Maintain organized drawing files, models, and documentation to ensure efficient project execution.

Skills

AutoCAD Civil 3D

3D modeling

Grading and drainage design

Roadway/site development

Communication

Organization

Problem solving

Education

Associate degree or technical diploma in civil engineering technology or related field

Tools

MicroStation

BIM workflows

GIS platforms

Job description

Mott MacDonald is seeking a Civil 3D Designer to join our North American team. You will develop detailed civil drawings for grading, drainage, utilities, and roadways, collaborating with engineers and project managers to produce accurate, buildable plans.

The role emphasizes quality, standards compliance, and 3D modeling, with a hybrid in-office schedule and a competitive benefits package. Candidates should have 5+ years of AutoCAD Civil 3D experience and a background in site development or