Civil/Transportation Engineer

ASCE St. Louis Section; St. Louis (MO); Hybrid; USD 90,000 - 130,000; Full time

Job summary

M3 Engineering Group is seeking a Civil/Transportation Engineer to join our growing St. Louis office. This role emphasizes drainage, hydraulics, and expanding roadway design capabilities across diverse projects.

The ideal candidate will bring water resources and transportation experience, B.S. in Civil Engineering, a MO/IL PE or ability to obtain, and strong communication skills to work with project managers and clients.

Qualifications

• B.S. in Civil Engineering or related field.
• PE license in Missouri and Illinois, or ability to obtain.
• Experience in transportation, civil infrastructure, water resources, or a combination of these areas with multi‑phase design delivery.
• Ability to work independently, organize priorities and take ownership while knowing when to collaborate.
• Willingness to tackle new challenges on a variety of projects.
• Strong written and verbal communication skills.
• Strong analytical and problem‑solving abilities.
• Proficiency with design software (OpenRoads Designer, AutoCAD Civil 3D, HEC‑RAS, HydroCAD).

Responsibilities

• Perform and support stormwater drainage and hydraulic design for transportation projects.
• Design and develop greenways, trails, sidewalks, and other pedestrian and bicycle facilities.
• Lead the technical development of traditional roadway design, including roadway geometry, grading, drainage, and plan development.
• Prepare plans, specifications, calculations, reports, and other technical deliverables.
• Permitting and coordination with regulatory agencies.
• Apply engineering judgment to solve project-specific design and technical challenges.
• Coordinate with clients, utilities, agencies, and other project stakeholders.
• Support M3’s continued growth in transportation and civil infrastructure work.

Skills

Water resources

Transportation design

Project ownership

Communication skills

Education

B.S. in Civil Engineering

Tools

OpenRoads Designer

AutoCAD Civil 3D

HEC-RAS

HydroCAD

Job description

M3 Engineering Group - St. Louis, MO

M3 Engineering Group is seeking a Civil / Transportation Engineer to join our growing St. Louis office. This is a technical role for someone who wants to apply their civil engineering and transportation background across a wide range of projects.

Current work is focused primarily on drainage and hydraulics aspects of transportation design. However, we are also looking to expand our traditional roadway design capabilities, making this an opportunity for an engineer with roadway experience to put that background to work while helping M3 pursue and deliver future transportation projects.

What You’ll Do

At M3, our engineers are involved in projects from beginning to end. You will have the opportunity to contribute to and take ownership of work including:

• Perform and support stormwater drainage and hydraulic design for transportation projects
• Design and develop greenways, trails, sidewalks, and other pedestrian and bicycle facilities
• Lead the technical development of traditional roadway design, including roadway geometry, grading, drainage, and plan development
• Prepare plans, specifications, calculations, reports, and other technical deliverables
• Permitting and coordination with regulatory agencies
• Apply engineering judgment to solve project-specific design and technical challenges
• Coordinate with clients, utilities, agencies, and other project stakeholders
• Support M3’s continued growth in transportation and civil infrastructure work

What We’re Looking For

The ideal candidate is a self-starter who can take ownership of technical assignments while working closely with project managers, clients, and other members of the M3 team. We’re especially interested in engineers who bring a combination of water resources engineering and transportation experience. Basic requirements include:

• B.S. in Civil Engineering or a related field
• PE license in Missouri and Illinois, or the ability to obtain
• A background in transportation, civil infrastructure, water resources, or a combination of these areas with experience delivering civil or water resources projects through multiple phases of design and implementation
• The ability to work independently, organize priorities, and take ownership of assignments while knowing when to collaborate and ask questions
• Willingness to tackle new challenges on a variety of projects
• Strong written and verbal communication skills
• Strong analytical and problem-solving abilities
• Strong experience with design software, including
• OpenRoads Designer
• AutoCAD Civil 3D
• HEC-RAS
• HydroCAD
• Valid driver’s license and ability to travel locally for project-related activities

M3 Engineering Group does not provide employment visa sponsorship for this position. Candidates must be legally authorized to work in the United States without current or future sponsorship from M3.

Why M3

At M3, you’ll have direct access to company leadership, considerable freedom in how you approach your work, and the trust to take ownership of your responsibilities. Our project work spans transportation, water resources, stream restoration, asset management, and construction management, giving our engineers exposure to a variety of technical challenges. For someone interested in building a career in transportation, this position offers significant room to grow. As M3 expands its transportation practice, there will be opportunities to take on greater responsibility and help influence the types of projects and services we pursue. M3 offers a collaborative environment, professional trust, and a healthy work-life balance while maintaining a strong focus on technical quality.

The St. Louis Office

M3’s St. Louis office is located in Downtown St. Louis in the vibrant Washington Avenue business corridor, in the historic Lammert Building. Our team works primarily in the office, with the flexibility to work remotely as needed. Most projects are local, with travel generally taking place during regular business hours. Occasional overnight travel may be required.