Trilon Group

Transportation Project Engineer III/IV

Trilon Group$80K — $95K *
Transportation
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Civil Engineering or related discipline; Master's preferred.
  • 5-12+ years of experience in transportation or roadway engineering.
  • Proficiency with MicroStation/OpenRoads and/or AutoCAD Civil 3D.
  • Strong understanding of DOT, LPA, or municipal design standards.
  • PE license required; ability to serve as Engineer of Record at IV level.
  • Experience mentoring junior staff and coordinating tasks.
  • Strong analytical and problem-solving skills.

Responsibilities

  • Lead or contribute to the design of transportation projects.
  • Develop and review engineering plans and models.
  • Prepare design reports, cost estimates, and technical memos.
  • Oversee and mentor junior engineers.
  • Coordinate with project managers and other stakeholders.
  • Perform advanced engineering analyses and troubleshoot design challenges.
  • Participate in QA/QC reviews to ensure compliance with standards.

Benefits

  • Major medical, dental and vision insurance
  • Flexible Spending Account
  • Health Savings Account
  • 401K
  • Bonus program
  • Paid holidays and generous paid time off
  • Professional development
Full Job Description
Transportation Project Engineer III/IV

Department: Transportation

Employment Type: Full Time

Location: St. Louis, MO

Reporting To: Barry Grant

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 (III/IV) 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 $80,000 - $95,000.

Your Primary Responsibilities will include
  • Lead or contribute significantly to the design and delivery of transportation projects, including roadway geometrics, intersections, pedestrian facilities, drainage, and traffic control.
  • Develop and review engineering plans, models, and calculations using MicroStation/OpenRoads and/or AutoCAD Civil 3D.
  • Prepare design reports, cost estimates, technical memos, specifications, and milestone submittals for DOT, LPA, or municipal agencies.
  • Oversee and guide junior engineers, providing mentorship, task coordination, and quality review of design documents.
  • Coordinate with project managers, clients, subconsultants, utilities, and permitting agencies to ensure project requirements and schedules are met.
  • Perform advanced engineering analyses, troubleshoot design challenges, and propose effective technical solutions.
  • Support or lead project planning, scope development, and discipline-level budgeting as experience allows.
  • Participate in QA/QC reviews and ensure compliance with relevant DOT, municipal, and industry standards.
  • Conduct occasional field investigations, site reviews, or construction support activities.


What you'll need
  • Bachelor's degree in Civil Engineering or related discipline; Master's preferred for higher-level roles.
  • Typically 5-12+ years of experience in transportation or roadway engineering with demonstrated technical competency.
  • Proficiency with MicroStation/OpenRoads and/or AutoCAD Civil 3D, including advanced geometric design and plan development.
  • Strong understanding of DOT, LPA, or municipal design standards, processes, and submittal requirements.
  • Ability to produce, review, and refine engineering calculations, design packages, cost estimates, and technical documents.
  • PE license required; ability to serve as Engineer of Record or lead discipline tasks at the IV level.
  • Proven ability to mentor junior staff, coordinate tasks, manage portions of projects, and communicate effectively with clients and internal teams.
  • Strong analytical, problem-solving, and decision-making skills with the ability to work independently on complex assignments.


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

Gonzalez is a rapidly growing, dynamic, professional services firm specializing in civil engineering, construction management, and construction inspection. Our clientele includes large and small water, sewer, and utility districts; departments of transportation and other public transportation agencies; and municipalities throughout the Midwest.

Working primarily in the Greater St. Louis, Chicago, and Louisville metro areas, Gonzalez offers a great work environment, generous benefit packages, and opportunities to succeed in many professional disciplines.

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.

About Trilon Group

Trilon Group offers career paths, spanning technical, project management, business management, business development, and operations.

Trilon Group Careers

Joining Trilon Group offers a unique opportunity to be part of a dynamic team of professionals dedicated to innovation, growth, and leadership in the industry. Trilon Group stands out as a beacon of excellence, providing a plethora of job opportunities that cater to a diverse range of skills and professional interests.

Explore Job Opportunities and Growth

Trilon Group is actively hiring, seeking individuals who are passionate, curious, and driven to excel. With a variety of open positions, Trilon Group is a prime choice for those looking to advance their careers in a supportive and diverse environment. Explore the numerous job opportunities and find a position that aligns with your career aspirations and skills.

Internship Programs

Kickstart your career with Trilon Group’s internship programs. These opportunities are designed for individuals eager to gain hands-on experience and develop essential skills in a real-world setting. Internships at Trilon Group are a gateway to full-time employment and offer a robust foundation in professional growth and networking.

Benefits and Culture

Trilon Group is committed to fostering a culture that values diversity and inclusion. Employees enjoy a range of benefits designed to support their professional and personal lives. From diversity training to comprehensive health benefits, Trilon Group ensures that team members have the resources they need to succeed and thrive.

Professional Development and Leadership

Career development is a cornerstone of Trilon Group’s ethos. The company offers unmatched training programs, leadership development, and opportunities for career advancement. Employees are encouraged to take initiative, lead projects, and participate in networking events to enhance their professional trajectory.

Innovation and Industry Leadership

At the intersection of technology and industry expertise, Trilon Group is a leader in delivering innovative solutions that drive success. The team at Trilon Group is at the forefront of industry trends, continuously adapting and evolving to meet the challenges of the digital era.

Hiring Process

The hiring process at Trilon Group is designed to be transparent and engaging. Candidates are encouraged to submit their resumes and may be invited for an interview to discuss their experiences and career goals. Trilon Group values a thorough approach to ensure that all potential team members align with the company’s values and vision.

Stay Connected with Trilon Group Careers

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Join the Trilon Group Team

Search for positions that match your interests and skills on the Trilon Group careers page. Trilon Group is looking for creative, solution-driven team players who are ready to make a significant impact. Explore the exciting and rewarding opportunities that await at Trilon Group.

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Learn more about Trilon Group
Size
1,001 employees
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