Transportation Engineer 4-Transit & Urban Mobility

Trinnex Inc.; Atlanta (GA); On-site; USD 91,478 - 160,118; Full time

Job summary

Trinnex Inc. is seeking a technical contributor in civil engineering at their Atlanta office. The role involves delivering engineering solutions for transit projects, like MARTA and GDOT, and requires 5 years of experience with related qualifications.

Responsibilities include leading project tasks, developing designs for transit infrastructure, and ensuring compliance with state and federal regulations. The company values professionals who are self-directed with strong problem-solving and communication skills.

Qualifications

• 5 years of related experience in civil or transportation engineering required.
• Experience on transit or multimodal infrastructure projects preferred.
• Certification as Engineer in Training (EIT) is necessary.

Responsibilities

• Lead technical tasks on transit infrastructure projects.
• Develop civil engineering designs for transit.
• Prepare construction plans and specifications.

Skills

Civil engineering design

Project management

Communication skills

Technical writing

Problem-solving

Education

Bachelor's degree in Civil, Transportation, or Structural Engineering

Tools

AutoCAD Civil 3D

MicroStation

OpenRoads Designer

Job description

Job Description

Join our Atlanta office as a growing technical contributor on the Transit and Urban Mobility Team! This role delivers civil engineering solutions of moderate to significant complexity for transit infrastructure, complete streets, and active transportation projects across the greater Atlanta metropolitan area. The engineer is expected to work with increasing independence and take on greater technical ownership of project tasks and deliverables.

You will contribute to projects for clients such as MARTA, the Atlanta Regional Commission (ARC), Georgia DOT (GDOT), and the City of Atlanta Department of Transportation (ATLDOT). Project types include heavy and light rail infrastructure, bus rapid transit, ADA accessibility programs, roadway reconstruction, multimodal corridor design, and capital project delivery incorporating complete streets and active transportation infrastructure.

Essential Job Functions

• Lead technical tasks and support senior engineers on complex transit infrastructure, multimodal corridor, and active transportation projects in the Atlanta metropolitan region.
• Develop civil engineering designs for transit projects including MARTA rail and bus infrastructure, BRT corridors, transit stations, and passenger amenities.
• Prepare complete streets and multimodal corridor designs integrating pedestrian, bicycle, and transit accommodations in compliance with ADA and applicable federal, state, and local standards.
• Prepare construction plans, specifications, cost estimates, and contract documents for roadway, transit, and active transportation projects; perform and support technical reviews of work prepared by junior staff.
• Review draft designs for compliance with federal, state, and local regulations, and ensure firm policies and practices are followed on all designs.
• Apply sound engineering judgment to resolve design challenges of moderate complexity on multimodal and transit projects, escalating more complex issues to senior staff as appropriate.
• Conduct site investigations, field reviews, and studies to ensure designs are aligned with location specifications; update design requirements as necessary.
• Inspect new construction and existing transportation structures as necessary.
• Support coordination with MARTA, GDOT, ATLDOT, and ARC project managers, stakeholders, regulatory agencies, and community partners throughout the project lifecycle.
• Collaborate with multidisciplinary teams including traffic, structural, landscape architecture, and environmental disciplines.
• Contribute to the firm's technical knowledge management (TKM) by developing white papers and technical design documentation for new or special‑case designs, studies, and innovative solutions.
• Submit technical papers and designs for publication in professional and technical journals; attend conferences, symposia, and industry events to advance the visibility of the firm's products and services.
• Provide technical guidance and training to junior engineering staff; review the work of more junior staff.
• Contribute to technical reports, presentations, and public and stakeholder engagement materials.
• Perform other duties as required.

Qualifications

Bachelor's degree in Civil, Transportation, or Structural Engineering or related discipline. Certification as an Engineer in Training (EIT) or passing the Fundamentals of Engineering (FE) exam in states where an EIT is not obtainable (within 18 months of hire or promotion or transfer). 5 years of related experience. Domestic and/or international travel may be required. The frequency of travel is contingent on specific duties, responsibilities, and the essential functions of the position, which may vary depending on workload and project demands. Equivalent additional directly related experience will be considered in lieu of a degree.

Preferred Qualifications

• Professional Engineer (PE) license in Georgia, or active pursuit of licensure with demonstrated progress toward examination.
• Six (6) or more years of directly related professional experience in civil or transportation engineering, with experience on transit or multimodal infrastructure projects in the Atlanta metropolitan region.
• Direct project experience with MARTA, GDOT, ATLDOT, ARC, or related Atlanta‑area transit and transportation agencies.
• Knowledge of federal transit and transportation funding programs (FTA, FHWA) and associated compliance requirements.
• Familiarity with NEPA processes, environmental permitting, and right‑of‑way acquisition procedures in the Georgia regulatory context.
• Experience with value engineering, constructability reviews, or alternative project delivery methods.
• Background in stormwater management, green infrastructure, or sustainable design practices in urban corridor applications, including Georgia EPD and City of Atlanta stormwater requirements.
• Proficiency in GIS tools such as ArcGIS or QGIS for spatial analysis and project mapping.
• Experience presenting to client teams, agency stakeholders, or community audiences.
• PTOE or related specialty certification.

Skills & Abilities

Technical Proficiency

• Proficiency in civil engineering design software, including AutoCAD Civil 3D, MicroStation, and/or OpenRoads Designer.
• Solid working knowledge of AASHTO, PROWAG, MUTCD, and Georgia DOT standard specifications and design guidelines.
• Demonstrated ability to independently develop roadway, drainage, grading, and utility design for urban transit and multimodal infrastructure of moderate to significant complexity.
• Working knowledge of complete streets design principles, Vision Zero concepts, and active transportation planning and design frameworks.
• Familiarity with ADA requirements and universal design standards as applied to public right‑of‑way and transit infrastructure.
• Growing familiarity with Atlanta‑specific design standards, permitting processes, and the regulatory environment governing MARTA, GDOT, and ATLDOT projects.

Project & Client Management

• Ability to independently manage assigned project tasks and subtasks while meeting quality, schedule, and budget expectations.
• Strong written and verbal communication skills, with experience preparing technical reports, specifications, and presentations for client and regulatory audiences.
• Experience supporting coordination with public sector clients, including transit authorities and DOTs.
• Ability to assist in managing subconsultant and interdisciplinary coordination on multi‑discipline project tasks.

Professional Attributes

• Strong analytical and problem‑solving skills with close attention to detail.
• Self‑directed with the ability to manage workload independently while knowing when to elevate technical issues.
• Commitment to delivering high‑quality, technically sound engineering work products.
• Growing engagement in the professional community through participation in ASCE, WTS, COMTO, or similar organizations.
• Adaptability to shifting project priorities and client needs in a fast‑paced project environment.

Amount of Travel Required

10% or less

Pay Range

USD $91,478.00 – USD $160,118.00

Visa Sponsorship

No – the company will not support sponsorship in the United States for this position.

EEO Statement

We attract the best people in the industry, supporting their efforts to learn and grow. We strive to create a challenging and progressive work environment. We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients. CDM Smith Inc. and its divisions and subsidiaries are an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, pregnancy related conditions, childbirth and related medical conditions, sexual orientation, gender identity or gender expression), national origin, age, marital status, physical or mental disability, veteran status, citizenship status, genetic information or any other characteristic protected by applicable law.