Transportation Project Engineer I/II

Mannik Smith Group; Clayton (MO); On-site; USD 70,000 - 80,000; Full time

Benefits offered by this job

Competitive salary

Major medical, dental and vision insurance

Flexible Spending Account

Health Savings Account

401K

Bonus program

Paid holidays and generous paid time off

Professional development

Job summary

Mannik Smith Group seeks a Transportation Project Engineer I/II in Clayton, MO. The role involves designing roadway projects, preparing engineering drawings, performing calculations, and collaborating with teams on project solutions. Ideal candidates have a Bachelor's in Civil Engineering and familiarity with MicroStation or AutoCAD. Competitive benefits include medical insurance, a 401K plan, and professional development opportunities. This is a full-time position with a projected salary range of $70,000 - $80,000.

Qualifications

• 0–5 years of experience in transportation, roadway, or municipal infrastructure design.
• Experience or familiarity with MicroStation/OpenRoads and/or AutoCAD Civil 3D.
• EIT/FE preferred; required for Engineer II level. PE-track candidates strongly preferred.

Responsibilities

• Assist in the design and development of transportation projects including roadways and intersections.
• Prepare engineering drawings using CAD software.
• Conduct field visits for data collection and construction observations.

Skills

Transportation infrastructure design

Communication skills

Collaboration

Problem-solving

Education

Bachelor's degree in Civil Engineering or related field

Tools

MicroStation

OpenRoads

AutoCAD Civil 3D

Job description

Transportation Project Engineer I/II

Department: Transportation

Employment Type: Full Time

Location: St. Louis, MO

Reporting To: Tony Shenk

Description

Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are currently seeking a Transportation Engineer (I/II) to help serve our connection of clients and community. If you’re hungry for knowledge, ready to make a difference and dedicated to providing personalized attention to our clients, we want you on our team.

The projected range of compensation in Illinois for this job is $70,000 - $80,000.

Your Primary Responsibilities will include

• Assist in the design and development of transportation projects including roadways, intersections, pedestrian facilities, and traffic improvements.
• Prepare engineering drawings, plans, and 3D models using CAD software (e.g., MicroStation, OpenRoads, AutoCAD Civil 3D).
• Perform basic to intermediate engineering calculations, including horizontal/vertical alignments, grading, drainage, quantities, and traffic control layouts.
• Support preparation of project documents such as cost estimates, technical reports, design summaries, and bid packages.
• Conduct field visits to support data collection, condition assessments, surveying coordination, or construction observations.
• Collaborate with senior engineers, project managers, and multidisciplinary teams to develop design solutions and ensure project quality.
• Assist with preparation of MoDOT, LPA, or municipal submittals and ensure adherence to applicable design standards and guidelines.
• Review and interpret topographic surveys, geotechnical reports, environmental documents, and utility data.
• Participate in coordination with clients, utility companies, and permitting agencies as needed.
• Contribute to internal QA/QC processes, documentation, and design reviews.

What you'll need

• Bachelor’s degree in Civil Engineering or related field.
• 0–5 years of experience in transportation, roadway, or municipal infrastructure design.
• Experience or familiarity with MicroStation/OpenRoads and/or AutoCAD Civil 3D.
• Understanding of geometric design principles, drainage, traffic control, and plan development.
• Ability to prepare or assist with design calculations, drawings, cost estimates, and technical documentation.
• EIT/FE preferred; required for Engineer II level. PE-track candidates strongly preferred at higher level.
• Strong communication, collaboration, and problem-solving skills, with ability to work independently as experience grows.
• Familiarity with DOT, LPA, or municipal design standards is a plus.

Gonzalez Offers Competitive Benefits including:

• Competitive salary
• Major medical, dental and vision insurance
• Flexible Spending Account
• Health Savings Account
• 401K
• Bonus program
• Paid holidays and generous paid time off
• Professional development
• A team of creative and talented individuals to work alongside

Equal Opportunity Employer

Gonzalez Companies, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.