Senior Roadway Design Engineer – IDOT Projects

Trinnex Inc.; Chicago (IL); Hybrid; USD 96,000 - 168,000; Full time

Benefits offered by this job

Hybrid work arrangement

Job summary

CDM Smith Inc. in Illinois seeks a Transportation Engineer to lead roadway design for IDOT projects, applying advanced design methods and ORD expertise to deliver high‑quality, safe solutions.

You will collaborate with multidiscipline teams, review plans for compliance, and mentor junior engineers while supporting field investigations and client interactions. A PE license and 10 years of experience are desired.

Qualifications

• Bachelors degree in Civil, Transportation, or Structural Engineering or related discipline.
• Professional engineering (PE) license.
• 10 years of related experience.
• Domestic and/or international travel may be required.

Responsibilities

• Perform hands-on roadway design for IDOT transportation projects, including highways, interchanges, and complex urban and rural corridors.
• Apply design manuals, standards, specifications, and guidelines to develop compliant, constructible design solutions.
• Use OpenRoads Designer (ORD) extensively for geometric design, corridor modeling, plan production, and coordination with drainage, traffic, and structural elements.
• Prepare, check, and review roadway geometry, profiles, cross sections, grading, and drainage designs with accuracy and adherence to IDOT and FHWA requirements.
• Develop and review design calculations related to alignment, sight distance, superelevation, drainage, and other components.
• Review plan sets and deliverables with detailed technical comments and quality checks.
• Coordinate with project managers and multidisciplinary teams for seamless integration of roadway, drainage, traffic, utilities, and structures.
• Develop IDOT project specifications, special provisions, and cost estimates aligned with standards and scope.
• Support field investigations and site visits, evaluate conditions, and assess constructability impacts.
• Respond to agency comments and revise designs during development and submittals.
• Contribute to proposals by providing narratives, scope input, and workload estimates.
• Provide day-to-day technical guidance to junior engineers and mentoring.

Skills

CADD 3D/4D

Engineering principles

Microsoft Office

Verbal and written communication

Regulations knowledge

Design standards

Education

Bachelors in Civil/Transportation/Structural Eng

PE license

Tools

OpenRoads Designer (ORD)

Job description

CDM Smith Inc. in Illinois seeks a Transportation Engineer to lead roadway design for IDOT projects, applying advanced design methods and ORD expertise to deliver high‑quality, safe solutions.

You will collaborate with multidiscipline teams, review plans for compliance, and mentor junior engineers while supporting field investigations and client interactions. A PE license and 10 years of experience are desired.