Civil 3D Designer

Mott MacDonald; Los Angeles (CA); Hybrid; USD 84,000 - 103,000; Full time

Benefits offered by this job

401(k) matching

Medical insurance

Dental insurance

Vision insurance

Paid holidays

PTO

Parental leave

Life insurance

Job summary

Mott MacDonald in Los Angeles is seeking an experienced Civil 3D Designer to produce detailed civil infrastructure drawings and 3D models. You will work with engineers and project managers to convert concepts into constructible plans for roads, drainage, utilities, and site developments.

You will contribute to design reviews, ensure compliance with standards, and collaborate across disciplines in a hybrid office environment. Strong 5+ year background in civil design is preferred.

Qualifications

• Minimum 5 years of civil engineering design experience.
• Advanced proficiency with AutoCAD Civil 3D.
• Experience developing grading, drainage, utility, roadway, or site plans.
• Ability to work effectively in a collaborative, multidisciplinary environment.

Responsibilities

• Develop and refine detailed civil engineering drawings using AutoCAD Civil 3D for grading, drainage, utilities, and roadway design.
• Collaborate with engineers and project managers to translate concepts into accurate, constructible plans.
• Create 3D surface models, alignments, profiles, corridors, and cross-sections for infrastructure projects.
• Prepare plan sets, quantity calculations, and construction documentation.
• Ensure all designs meet applicable codes, standards, and client requirements.
• 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.

Skills

Attention to detail

Communication

Problem solving

Education

Associate degree or technical diploma in civil eng tech

Tools

AutoCAD Civil 3D

Job description

At Mott MacDonald, we trust our brilliant people to do brilliant things in engineering, management, and development services, supporting multisector project work in over 150 countries. As one of the largest employee-owned companies in the world, we pride ourselves on our ability to deliver exceptional outcomes through our network of 20,000+ talented consultants. With sustainability and innovation at the heart of all our sectors in North America, including, Buildings, Energy, Transportation, and Water.

We believe in empowering our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work. Join us and be part of a collaborative environment where your ambitions are united with ours, and you can truly shape your story.

If you share that vision, even if you don't meet every requirement listed, we'd still love to hear from you. We value potential and diverse perspectives as much as experience. Let's explore how we can support your growth and help you take the next step in your career, while contributing to an exciting new chapter for Mott MacDonald in North America.

At Mott MacDonald, we’re a global engineering, management, and development consultancy driven by a shared purpose: improving society through excellence, innovation, and collaboration. Our teams work on some of the most complex and rewarding infrastructure projects, helping communities thrive today and for generations to come.

We’re looking for an experienced Civil 3D Designer to join our growing team. If you’re passionate about delivering high-quality civil infrastructure designs and enjoy collaborating with talented engineers on meaningful projects, we’d love to hear from you.

As our Civil 3D Designer, you’ll be the creative and technical force behind the detailed plans that bring our projects to life. Your expertise will help transform conceptual visions into precise, buildable designs, whether it’s a new roadway, a stormwater management system, utility infrastructure, or a large-scale site development. Your work will directly influence the safety, efficiency, and sustainability of the communities we serve.

Role 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.

Candidate Specification

We’re looking for someone who brings technical expertise, attention to detail, and a collaborative mindset.

You’ll have:

• 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 and drafting practices.
• Experience creating and managing 3D models, surfaces, alignments, profiles, and corridors.
• Ability to work effectively in a collaborative, multidisciplinary environment.
• Strong communication, organizational, and problem-solving skills.
• Associate degree, technical diploma, or equivalent experience in civil engineering technology, drafting, or a related field preferred.

Desirable

• Experience with transportation, municipal, water, wastewater, or land development projects.
• Familiarity with MicroStation, BIM workflows, GIS platforms, or other design technologies.
• Knowledge of local, state, and federal design standards.

Benefits & Reward

At Mott MacDonald, our employees have a stake and a voice in our business, providing them with a direct connection to our success through our personal and group performance bonuses. We provide a comprehensive benefit package that includes 401k, medical, dental and vision insurance, short-term/long-term disability, paid holidays, PTO, parental leave, and company paid life insurance.

Individual pay is determined based on several factors such as work location, education, experience, and unique skills.

The expected salary for this position is $84,000 - $103,000.

Collaboration at Our Core

At Mott MacDonald, we believe great ideas happen when we’re together. Our hybrid approach centers on an in-office culture, with most of your time spent collaborating face-to-face and a minimum of three days per week in the office. We balance flexibility with connection, so you and your manager can choose how to meet client, team, and personal commitments.

Equal opportunity is the law.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, creed, marital status, sexual orientation, gender identity, citizenship status or disability status.